Gardening Quiz

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Welcome to Your Garden Adventure!

Are you ready to put your gardening skills to the test?

Dive into our Free Online Gardening Quiz and uncover the secrets to a thriving garden. This interactive quiz is perfect for enthusiasts of all levels—from budding beginners to seasoned gardeners.

Learn fascinating facts, identify plants, and receive personalized tips to enhance your green space. It’s engaging, informative, and best of all, it’s free!

Why wait? Embark on your gardening journey today and blossom into a true plant expert!

Disclaimer: The hard questions in the Gardening Quiz are challenging. To finish the game and reaching the master level typically requires a significant amount of grit, determination and perseverance. I you want to learn more about gardening check out our article about Gardening as a passion.

Question 1:

What is the most important factor for plant growth?

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Consider what plants use to make their food.
Click to see Answer ⬇
Sunlight - Plants require sunlight to perform photosynthesis, which is essential for their growth.

Question 2:

What type of soil is best for most plants?

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This soil type combines three different textures.
Click to see Answer ⬇
Loamy - Loamy soil provides adequate drainage and nutrient retention suitable for most plant types.

Question 3:

Which plant is known to repel insects naturally?

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This plant has a pleasant aroma.
Click to see Answer ⬇
Lavender - Lavender emits a strong fragrance that is displeasing to many types of insects.

Question 4:

What should you do to ensure bulbs planted in the fall bloom in the spring?

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Depth matters for bulbs.
Click to see Answer ⬇
Plant them at the correct depth - Bulbs require specific planting depths depending on their type to ensure they bloom at the right time.

Question 5:

Which vegetable can grow well in shady gardens?

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Think of a leafy green.
Click to see Answer ⬇
Lettuce - Lettuce does not require as much sunlight as some other vegetables and can do well in partial shade.

Question 6:

What is compost primarily used for in gardening?

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This material enriches the soil.
Click to see Answer ⬇
Fertilizing soil - Compost adds essential nutrients back into the soil, helping plants grow.

Question 7:

How often should garden tools be cleaned?

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Maintenance is key.
Click to see Answer ⬇
After each use - Cleaning your garden tools after each use helps to prevent rust and stop the spread of plant diseases.

Question 8:

What is a common sign of overwatering a plant?

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Signs in the leaves can indicate watering issues.
Click to see Answer ⬇
Yellow leaves - Overwatering can lead to waterlogged soil which causes yellowing of the leaves due to lack of oxygen.

Question 9:

Which of these should not be planted next to each other?

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Consider companion planting.
Click to see Answer ⬇
Beans and garlic - Garlic releases substances that can inhibit the growth of beans.

Question 10:

How can you increase the acidity of the soil for acid-loving plants like blueberries?

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Think of a common kitchen waste product.
Click to see Answer ⬇
Add coffee grounds - Coffee grounds are acidic and can help lower the pH level of the soil, which is beneficial for acid-loving plants.

Question 11:

What nutrient is most essential for flower and fruit development in plants?

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Think of the P in NPK fertilizer.
Click to see Answer ⬇
Phosphorus - Phosphorus promotes the development of flowers and fruits and is vital for plant DNA and RNA.

Question 12:

Which of the following is a sign of magnesium deficiency in plants?

Click to see Hint ⬇
Look for yellow patterns on leaves.
Click to see Answer ⬇
Yellowing between the leaf veins - Magnesium is essential for chlorophyll production, and its deficiency can lead to chlorosis, seen as yellowing between veins.

Question 13:

What is the best time of day to water your garden to reduce evaporation and minimize disease risk?

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Think about the coolest part of the day.
Click to see Answer ⬇
Morning - Watering in the morning helps reduce water loss due to evaporation and prevents moisture-related plant diseases.

Question 14:

Which type of mulch is best for improving soil health and fertility?

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Think of a decomposable mulch.
Click to see Answer ⬇
Straw mulch - Straw mulch not only helps maintain moisture and prevent weeds but also improves soil fertility as it breaks down.

Question 15:

How should you prune a tomato plant to maximize fruit production?

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Focus on parts of the plant that do not bear fruit.
Click to see Answer ⬇
Prune the lower branches and suckers - Removing suckers and lower branches from tomato plants can increase air circulation and focus the plant's energy on fruit production.

Question 16:

What is the process called where plants lose water through their leaves?

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It's like plant sweating.
Click to see Answer ⬇
Transpiration - Transpiration is a crucial process that involves water movement through a plant and the subsequent loss of water vapor through leaves.

Question 17:

Which gardening technique involves growing plants in a solution of water and nutrients without soil?

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This method uses no soil at all.
Click to see Answer ⬇
Hydroponics - Hydroponics allows plants to grow in a water solution enriched with nutrients, eliminating the need for soil.

Question 18:

Which of these is an effective organic method to control aphids on plants?

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Consider a gentle, yet forceful approach.
Click to see Answer ⬇
Using a strong jet of water - Spraying aphids off with water is a simple and environmentally friendly way to manage these pests without harmful chemicals.

Question 19:

What type of propagation involves cutting a part of a plant and allowing it to develop roots?

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This method involves a part of the plant becoming a whole new one.
Click to see Answer ⬇
Cutting - Cuttings involve taking a segment of a stem, leaf, or root and allowing it to take root, forming a new plant.

Question 20:

Which garden pest is known for creating silky webs on plants?

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Look for fine webs on the undersides of leaves.
Click to see Answer ⬇
Spider mites - Spider mites can cause significant damage to plants by sucking sap and creating webs that stifle the plant's ability to photosynthesize.

Question 21:

Which hormone is primarily responsible for root formation in plant cuttings?

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Think about what helps roots grow.
Click to see Answer ⬇
Auxins - Auxins stimulate root growth at the cutting sites, making them essential for propagation.

Question 22:

What is the botanical term for a plant that lives for more than two years?

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These plants return each spring.
Click to see Answer ⬇
Perennial - Perennials come back year after year, unlike annuals which complete their life cycle in one year.

Question 23:

Which soil pH level is generally considered ideal for most vegetable gardens?

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Think of the middle range for pH.
Click to see Answer ⬇
6.5 - 7.0 - This pH range facilitates optimal nutrient uptake for most vegetables, leading to healthier plants and better yields.

Question 24:

Identify the plant disease characterized by white, powdery spots on leaves and stems.

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Look for a dusty appearance on the leaves.
Click to see Answer ⬇
Powdery mildew - Powdery mildew affects many plants and thrives in dry conditions with high humidity.

Question 25:

What advanced propagation technique involves merging tissues of two different plants so they grow as one?

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This technique involves combining two plants.
Click to see Answer ⬇
Grafting - Grafting is used to combine the best traits of two different plants, such as disease resistance and high yield.

Question 26:

What is a terrarium?

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Think of a small, enclosed garden.
Click to see Answer ⬇
A miniature greenhouse - A terrarium is a small, enclosed environment for growing plants, often used as a decorative or educational display.

Question 27:

Which of the following is essential for maintaining a healthy terrarium ecosystem?

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Excess water needs to go somewhere.
Click to see Answer ⬇
Proper drainage - Good drainage prevents water from accumulating at the bottom of the terrarium, which can lead to root rot and other issues.

Question 28:

What type of plants are commonly used in terrariums?

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Think of plants that like humidity.
Click to see Answer ⬇
Tropical plants - Tropical plants are well-suited for the high humidity levels found in terrariums and can create lush, green environments.

Question 29:

What is the purpose of a terrarium's lid or cover?

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Think about creating a warm environment.
Click to see Answer ⬇
To trap heat - The enclosed environment created by the lid or cover allows heat to build up, mimicking natural conditions for the plants.

Question 30:

What is an important consideration when choosing a container for a terrarium?

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Consider the amount of light that will pass through.
Click to see Answer ⬇
Transparency - The transparency of the container impacts the amount of light available to the plants and can influence the overall aesthetic.

Question 31:

Which of the following is a common tool used for digging in the garden?

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This tool has a broad, flat blade for moving soil.
Click to see Answer ⬇
Shovel - A shovel is an essential tool for digging and moving soil in garden tasks.

Question 32:

What is topiary?

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Topiary involves shaping living plants.
Click to see Answer ⬇
The art of shaping trees and shrubs - Topiary involves sculpting and training plants into decorative shapes, often found in formal gardens.

Question 33:

Which tool is commonly used for trimming and shaping topiary?

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This tool allows for precise cutting of plants.
Click to see Answer ⬇
Pruning shears - Pruning shears allow for detailed and controlled cutting of topiary plants to maintain their shape.

Question 34:

What is the term for the process of training and trimming plants to create topiary designs?

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It involves the artistic shaping of living plants.
Click to see Answer ⬇
Horticultural sculpting - Horticultural sculpting is the skilled practice of shaping and maintaining plants for topiary purposes.

Question 35:

What is a community garden?

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It involves gardening with others in a shared space.
Click to see Answer ⬇
A garden shared by a group of people - Community gardens are collaborative spaces where individuals come together to grow fruits, vegetables, and flowers, often in urban areas with limited access to green spaces.

Question 36:

What is rooftop gardening?

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It involves cultivating plants on the top of a structure.
Click to see Answer ⬇
Gardening on the roof of a building - Rooftop gardening is a form of urban agriculture that utilizes underutilized rooftop spaces for planting, promoting sustainability and local food production in cities.

Question 37:

Which type of soil is generally preferred for rooftop gardening in urban agriculture?

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This type of soil has good drainage and is lightweight.
Click to see Answer ⬇
Sandy soil - Sandy soil is favored for rooftop gardening as it provides good drainage, aeration, and is lightweight, making it suitable for rooftop applications.

Question 38:

Which vegetable is known for its high vitamin C content and can be grown in a home garden?

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Consider the vitamin content when choosing the vegetable.
Click to see Answer ⬇
Tomato - Tomatoes are an excellent source of vitamin C and are well-suited for home garden cultivation due to their adaptability to various climates.

Question 39:

Which of the following vegetables is a cool-season crop?

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Consider the temperature preferences of the vegetable.
Click to see Answer ⬇
Spinach - Spinach is best grown in cooler temperatures and is considered a cool-season crop, making it suitable for early spring and fall planting.

Question 40:

Which vegetable should be harvested when the head feels firm and solid?

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Consider the texture of the vegetable head when harvesting.
Click to see Answer ⬇
Broccoli - Broccoli heads should be harvested when they are firm and tight to ensure optimal taste and texture.

Question 41:

Which vegetable is commonly used as a natural pest repellent in vegetable gardens?

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Consider the pest-repelling properties of the vegetable.
Click to see Answer ⬇
Garlic - Garlic is known for its pest-repelling properties and is often planted in vegetable gardens to deter pests.

Question 42:

Which vegetable is commonly grown in raised beds to improve drainage and soil quality?

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Consider the soil requirements of the vegetable.
Click to see Answer ⬇
Carrot - Carrots benefit from well-drained soil, making raised beds an ideal growing environment to improve drainage and soil quality.

Question 43:

Which vegetable is commonly used as a trap crop to attract pests away from other vegetables?

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This vegetable is known for its ability to divert pests from other plants.
Click to see Answer ⬇
Radishes - Radishes are effective trap crops that can help protect other vegetables from pests by drawing the pests away from the main crops.

Question 44:

What is the ideal pH range for soil when growing tomatoes in a vegetable garden?

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Tomatoes prefer soil with a specific pH range.
Click to see Answer ⬇
6.0-7.0 - Tomatoes prefer slightly acidic to neutral soil, with a pH range between 6.0 and 7.0, for optimal growth and fruit production.

Question 45:

Which vegetable is a heavy feeder and benefits from regular fertilization during the growing season?

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This vegetable requires ample nutrients for optimal growth.
Click to see Answer ⬇
Zucchini - Zucchini plants are heavy feeders, requiring regular fertilization to support their vigorous growth and fruit production.

Question 46:

Which vegetable is often recommended for succession planting to extend the harvest period?

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This vegetable can be planted in intervals for a continuous harvest.
Click to see Answer ⬇
Green beans - Green beans are ideal for succession planting, allowing for a prolonged harvest period by staggering plantings at regular intervals.

Question 47:

Which vegetable is known for its ability to deter pests with its strong scent and is often used as a companion plant in vegetable gardens?

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This vegetable's strong scent helps protect other plants from pests.
Click to see Answer ⬇
Onions - Onions emit a strong scent that repels many pests, making them valuable companion plants in vegetable gardens for natural pest control.

Question 48:

What is the ideal soil temperature for germinating carrot seeds?

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Carrot seeds thrive in cooler soil conditions.
Click to see Answer ⬇
50-60°F (10-15°C) - Carrot seeds germinate best when the soil temperature is around 50-60°F (10-15°C), which is considered cooler compared to other vegetable seeds.

Question 49:

What is the primary cause of blossom end rot in tomatoes?

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The issue is related to a specific nutrient deficiency.
Click to see Answer ⬇
Calcium deficiency - Blossom end rot in tomatoes is characterized by a dark, sunken area at the blossom end of the fruit, and it is primarily caused by insufficient calcium uptake by the plant, often due to fluctuations in soil moisture.

Question 50:

Which vegetable is a heavy nitrogen feeder and benefits from companion planting with beans?

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Consider the nitrogen needs of the vegetables.
Click to see Answer ⬇
Corn - Corn is known to be a heavy nitrogen feeder, and planting it alongside beans can help improve soil fertility as beans are nitrogen-fixing plants, providing a natural source of nitrogen for the corn.

Question 51:

Which vegetable is susceptible to clubroot disease and is best grown in raised beds with well-draining soil?

Click to see Hint ⬇
Consider the disease susceptibility and soil requirements.
Click to see Answer ⬇
Brussels sprouts - Brussels sprouts are highly susceptible to clubroot, a soil-borne disease that causes swelling of the roots, and they thrive in raised beds with well-draining soil to minimize the risk of infection.

Question 52:

What is the recommended spacing for planting garlic cloves in the garden?

Click to see Hint ⬇
Consider the spacing needed for bulb development.
Click to see Answer ⬇
6 inches (15 cm) apart - Garlic cloves should be spaced approximately 6 inches apart to provide enough room for the bulbs to develop fully without crowding each other.

Question 53:

In sand art, what is the name for the process of creating temporary designs by raking patterns in the sand?

Click to see Hint ⬇
This process is often associated with Japanese rock gardens.
Click to see Answer ⬇
Zen gardening - Zen gardening, also known as Japanese rock gardens, is a traditional Japanese art form that involves the creation of patterns in sand or gravel using rakes.

Question 54:

What is bonsai?

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Bonsai involves cultivating small trees in containers.
Click to see Answer ⬇
A miniature tree grown in a shallow container - Bonsai is a Japanese art form using cultivation techniques to produce small trees in containers that mimic the shape and scale of full-size trees.

Question 55:

Which of the following is essential for bonsai care?

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Bonsai trees benefit from periodic repotting.
Click to see Answer ⬇
Frequent repotting - Regular repotting allows bonsai trees to receive fresh nutrients and prevents the roots from becoming pot-bound.

Question 56:

What is the purpose of wiring in bonsai cultivation?

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Wiring is used to shape bonsai trees.
Click to see Answer ⬇
To control the direction of growth - Wiring allows bonsai enthusiasts to create the desired shape and structure by gently bending and guiding the branches and trunks.

Question 57:

Which type of soil is commonly used for bonsai cultivation?

Click to see Hint ⬇
Bonsai soil should be well-draining with added nutrients.
Click to see Answer ⬇
Potting mix with slow-release fertilizer - The ideal soil for bonsai cultivation should provide good aeration and drainage while also retaining moisture and nutrients.

Question 58:

Which of the following is a key principle in bonsai design?

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Bonsai design often emphasizes natural and balanced asymmetry.
Click to see Answer ⬇
Natural asymmetry - Natural asymmetry is a fundamental principle in bonsai design, aiming to create a balanced yet natural and harmonious tree form.

Question 59:

What is the term for a plant that is a chimera?

Click to see Hint ⬇
Look for plants with patches of different colors on their leaves.
Click to see Answer ⬇
Variegated - A variegated plant is a chimera that displays different colored patches on its leaves or other parts due to genetic variation.

Question 60:

What is an important factor to consider when watering orchids?

Click to see Hint ⬇
Orchids prefer a drying-out period between waterings.
Click to see Answer ⬇
Allowing the potting mix to dry out slightly between waterings - Overwatering can harm orchids, so it's important to let the potting mix dry out a bit before watering again.

Question 61:

What is the primary purpose of using compost in organic gardening?

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Compost enhances the quality of the soil.
Click to see Answer ⬇
To improve soil fertility and structure - Compost is a rich source of organic matter that improves soil fertility, promotes beneficial microbial activity, and enhances soil structure.

Question 62:

Which organic gardening practice involves rotating the crops in different areas of the garden each season?

Click to see Hint ⬇
It involves moving crops to different areas of the garden each season.
Click to see Answer ⬇
Crop rotation - Crop rotation is an essential organic gardening practice that helps maintain soil fertility, minimize pest and disease problems, and optimize plant health.

Question 63:

What is a common natural method for controlling pests in organic gardening?

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It involves physically removing insects from plants.
Click to see Answer ⬇
Handpicking pests - Handpicking pests involves physically removing insects from plants, which can help control pest populations without the use of chemicals.

Question 64:

Which organic gardening technique involves using a layer of organic materials to cover the soil around plants?

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It involves covering the soil around plants with organic materials.
Click to see Answer ⬇
Mulching - Mulching provides numerous benefits, including moisture retention, weed suppression, and soil insulation, making it a valuable practice in organic gardening.

Question 65:

What is the primary purpose of using organic fertilizers in organic gardening?

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Organic fertilizers enrich the soil with essential nutrients.
Click to see Answer ⬇
To improve soil fertility and structure - Organic fertilizers enrich the soil with essential nutrients, promote microbial activity, and enhance soil structure, contributing to healthy plant growth in organic gardening.

Question 66:

What is the primary purpose of using mulch in organic gardening?

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Mulch serves a dual purpose in organic gardening.
Click to see Answer ⬇
To retain soil moisture and suppress weeds - Mulch acts as a protective layer over the soil, helping to conserve moisture and prevent weed growth.

Question 67:

Which of the following is an example of a nitrogen-fixing plant commonly used in organic gardening?

Click to see Hint ⬇
Look for plants that can enhance soil fertility through nitrogen fixation.
Click to see Answer ⬇
Pea - Nitrogen-fixing plants like peas have the ability to convert atmospheric nitrogen into a form that can be used by other plants, thus improving soil fertility.

Question 68:

What is the purpose of using companion planting in organic gardening?

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Companion planting utilizes the natural relationships between plants to benefit the garden.
Click to see Answer ⬇
To deter pests through natural means - Companion planting involves growing certain plants together to benefit each other, such as repelling pests or attracting beneficial insects.

Question 69:

What is the primary function of using a cold frame in organic gardening?

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Cold frames are used to create a microclimate for plants.
Click to see Answer ⬇
To extend the growing season - Cold frames provide a sheltered environment that allows gardeners to start plants earlier in the spring and grow them later into the fall or winter.

Question 70:

What is the purpose of using neem oil in organic gardening?

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Neem oil is known for its insecticidal and fungicidal properties.
Click to see Answer ⬇
To control fungal diseases and pests - Neem oil has natural pesticidal and fungicidal properties, making it an effective organic solution for managing garden pests and diseases.

Question 71:

What is the primary function of using a soaker hose in organic gardening?

Click to see Hint ⬇
Soaker hoses are designed to deliver water directly to the roots.
Click to see Answer ⬇
Minimizes water waste and delivers water directly to the plant roots - Soaker hoses are an efficient way to water plants in organic gardening, as they deliver water directly to the roots, minimizing water waste and promoting plant health.

Question 72:

What is the purpose of using diatomaceous earth in organic gardening?

Click to see Hint ⬇
Diatomaceous earth is used for pest control.
Click to see Answer ⬇
To control pests by damaging their exoskeletons - Diatomaceous earth is an effective pest control method in organic gardening, as it damages the exoskeletons of pests, leading to their control without the use of synthetic chemicals.

Question 73:

What is the primary purpose of using a hori hori knife in organic gardening?

Click to see Hint ⬇
A hori hori knife is a versatile tool for garden maintenance.
Click to see Answer ⬇
To prune plants and remove weeds - A hori hori knife is a multi-purpose tool in organic gardening, commonly used for pruning plants and removing weeds due to its sharp and sturdy blade.

Question 74:

What is the purpose of using mycorrhizal fungi in organic gardening?

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Mycorrhizal fungi improve soil fertility and structure.
Click to see Answer ⬇
To enhance soil fertility and structure - Mycorrhizal fungi form a symbiotic relationship with plant roots, enhancing soil fertility and structure by improving nutrient uptake, leading to healthier and more productive plants in organic gardening.

Question 75:

What is the primary function of using a broadfork in organic gardening?

Click to see Hint ⬇
A broadfork is used to aerate the soil without disrupting its structure.
Click to see Answer ⬇
To aerate the soil without disturbing its structure - A broadfork is a valuable tool for soil aeration in organic gardening, as it effectively loosens the soil without causing damage to its structure, improving overall soil health.

Question 76:

What is the purpose of a trellis in outdoor gardening?

Click to see Hint ⬇
It assists vertical plant growth in gardens.
Click to see Answer ⬇
To support climbing plants - Trellises are designed to assist climbing plants by giving them a structure to cling to and grow vertically, optimizing space and visual appeal in gardens.

Question 77:

Which of the following is a characteristic of a xeriscape garden design?

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Xeriscaping focuses on water conservation.
Click to see Answer ⬇
Minimal water usage plants - Xeriscape gardens are designed to minimize water usage by incorporating drought-tolerant plants and efficient irrigation methods.

Question 78:

What is the term for a gardening technique that involves creating self-sustaining ecosystems?

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This gardening technique aims for self-sufficiency and sustainability.
Click to see Answer ⬇
Permaculture - Permaculture is a gardening technique focused on creating self-sustaining ecosystems that mimic natural patterns.

Question 79:

What is the process of cultivating and managing gardens and ornamental plants known as?

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This term encompasses gardening and ornamental plant cultivation.
Click to see Answer ⬇
Horticulture - Horticulture is the science and art of growing fruits, vegetables, flowers, and ornamental plants.

Question 80:

Which of the following is a key factor to consider when selecting a location for a vegetable garden?

Click to see Hint ⬇
Consider the light exposure in the chosen location.
Click to see Answer ⬇
Amount of sunlight - Most vegetables require at least 6 hours of direct sunlight per day for optimal growth.

Question 81:

What is hydroponic gardening?

Click to see Hint ⬇
Hydroponic gardening does not involve traditional soil.
Click to see Answer ⬇
Growing plants without soil - Hydroponic gardening is a method of growing plants without soil, using nutrient-rich water solutions instead.

Question 82:

Which of the following is a common hydroponic system?

Click to see Hint ⬇
This hydroponic system involves a mist environment for plant roots.
Click to see Answer ⬇
Aeroponics - Aeroponics is a hydroponic system where plant roots are suspended in an air/mist environment and nutrient solution is applied in the form of a mist.

Question 83:

What is the primary advantage of hydroponic gardening?

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One of the main benefits is related to water consumption.
Click to see Answer ⬇
Reduced water usage - Hydroponic systems are designed to use water more efficiently, leading to reduced water consumption.

Question 84:

What is the purpose of a nutrient solution in hydroponic gardening?

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The nutrient solution plays a vital role in providing something essential to the plants.
Click to see Answer ⬇
To supply essential nutrients to plants - In hydroponic gardening, the nutrient solution serves as the primary source of essential nutrients for plant growth, as there is no soil to provide these nutrients.

Question 85:

What is a commonly used growing medium in hydroponic systems?

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This growing medium is derived from coconut husks.
Click to see Answer ⬇
Coconut coir - Coconut coir, derived from coconut husks, is a popular growing medium in hydroponic systems as it provides good water retention and aeration for plant roots.

Question 86:

What is the optimal pH range for a hydroponic nutrient solution?

Click to see Hint ⬇
The pH range is slightly acidic for hydroponic nutrient solutions.
Click to see Answer ⬇
pH 5-6 - Maintaining the correct pH level in hydroponic systems ensures that essential nutrients are readily available to the plants.

Question 87:

Which essential nutrient is often deficient in a hydroponic system, leading to yellowing of leaves?

Click to see Hint ⬇
This nutrient is essential for chlorophyll production.
Click to see Answer ⬇
Iron - Iron is crucial for chlorophyll production, and its deficiency can result in yellowing of leaves, a common symptom in hydroponic plants.

Question 88:

Which type of hydroponic system involves plants growing directly in a nutrient solution without a growing medium?

Click to see Hint ⬇
This system involves direct contact between roots and the nutrient solution.
Click to see Answer ⬇
Deep Water Culture - In Deep Water Culture, plants are suspended over a reservoir of nutrient solution, allowing their roots to grow directly in the solution.

Question 89:

What is the primary purpose of an air stone in a hydroponic system?

Click to see Hint ⬇
It is related to root respiration and growth.
Click to see Answer ⬇
Providing oxygen to the roots - The air stone creates bubbles in the nutrient solution, ensuring that the roots receive sufficient oxygen for respiration.

Question 90:

What is the recommended temperature range for a hydroponic nutrient solution?

Click to see Hint ⬇
The range is conducive to nutrient uptake and microbial activity.
Click to see Answer ⬇
20-25°C - Maintaining the nutrient solution within this temperature range promotes efficient nutrient uptake by plants and beneficial microbial activity.

Question 91:

What is the ideal relative humidity for a hydroponic grow room?

Click to see Hint ⬇
Consider the moisture requirements of plants in a controlled environment.
Click to see Answer ⬇
60-70% - A relative humidity of 60-70% is ideal for hydroponic gardening as it promotes healthy plant growth and helps prevent issues like mold and mildew.

Question 92:

What is the purpose of an EC meter in hydroponic gardening?

Click to see Hint ⬇
It is used to ensure the right balance of essential elements for plant growth.
Click to see Answer ⬇
Assessing nutrient concentration - An EC meter measures the electrical conductivity of a solution, providing valuable information about the nutrient concentration in hydroponic systems.

Question 93:

Which nutrient deficiency is indicated by interveinal chlorosis in hydroponically grown plants?

Click to see Hint ⬇
Consider the specific symptoms associated with different nutrient deficiencies.
Click to see Answer ⬇
Magnesium - Interveinal chlorosis, where the veins of the leaves remain green while the interveinal areas turn yellow, is a classic symptom of magnesium deficiency in hydroponic plants.

Question 94:

What is the recommended ppm (parts per million) range for a hydroponic nutrient solution?

Click to see Hint ⬇
Consider the concentration of nutrients in the solution.
Click to see Answer ⬇
600-800 ppm - Maintaining a ppm range of 600-800 ensures that plants receive adequate nutrients without risking nutrient imbalances or toxicities.

Question 95:

What is the role of a reverse osmosis system in hydroponic gardening?

Click to see Hint ⬇
Consider the water purification aspect of hydroponic systems.
Click to see Answer ⬇
Filtering out pathogens - Reverse osmosis systems help ensure the purity and safety of the water used in hydroponic systems by removing harmful pathogens and impurities.

Question 96:

In folklore, what is the traditional method to attract fairies to a garden?

Click to see Hint ⬇
This method involves planting a specific type of tree known for its significance in folklore.
Click to see Answer ⬇
Plant a rowan tree - Rowan trees are considered sacred to fairies and are believed to draw them to the area.
Gardening Quiz