Course outline
Module 1
Module 1: Site Analysis and Assessment
Site Analysis and Assessment
Knowledge check
Q1. What is the first step in conducting a site analysis for a garden design?
- A. Selecting plant varieties
- B. Documenting the property boundaries and existing features ✓
- C. Installing irrigation systems
- D. Choosing garden furniture
Why: A site analysis begins with understanding the physical context: boundaries, existing structures, and features. This foundation informs every later design decision, so it must come before selecting plants or hardscape elements.
Q2. Which direction does the sun generally travel across the sky in the Northern Hemisphere?
- A. North to south
- B. East to west ✓
- C. West to east
- D. South to north
Why: The sun rises in the east and sets in the west due to Earth's rotation. Understanding this helps designers determine sun exposure on different garden areas throughout the day.
Q3. Why is soil testing important in site assessment?
- A. It determines the property's market value
- B. It reveals pH, nutrient levels, and drainage characteristics that affect plant choice ✓
- C. It identifies underground utility lines
- D. It measures the garden's square footage
Why: Soil pH, nutrient content, texture, and drainage directly influence which plants will thrive. Testing allows designers to match plants to conditions or plan amendments before planting.
Q4. What does a site survey typically record about slope and drainage?
- A. The color of the soil
- B. The direction water flows and areas where it pools after rain ✓
- C. The height of nearby trees only
- D. The age of the house
Why: Mapping slope and water movement reveals where runoff collects or drains away. This information guides placement of beds, paths, rain gardens, and drainage solutions to prevent erosion and waterlogging.
Q5. What is a microclimate in the context of garden site analysis?
- A. A climate control system installed in greenhouses
- B. A small area with conditions such as temperature or moisture that differ from the surrounding region ✓
- C. The average climate of an entire country
- D. A type of artificial shade structure
Why: Walls, fences, slopes, and paving can create localized conditions, such as warmer, sheltered spots or damp shaded areas. Recognizing microclimates lets designers place plants where they will perform best.
Module 2
Module 2: Principles of Balance and Proportion
Principles of Balance and Proportion
Knowledge check
Q1. In garden design, what does 'symmetrical balance' generally refer to?
- A. Plants arranged randomly across the entire garden
- B. Elements mirrored on either side of a central axis ✓
- C. Using only plants of the same height throughout
- D. Placing all features in the front of the garden
Why: Symmetrical balance mirrors elements on either side of a central axis, creating a formal, orderly, and stable feel.
Q2. Which term describes the relationship between the size of one garden element and the size of another or the whole garden?
- A. Texture
- B. Proportion ✓
- C. Rhythm
- D. Contrast
Why: Proportion refers to the relative size relationships among elements and between elements and the overall space, which helps the design feel harmonious.
Q3. A garden with a large tree on one side balanced by a grouping of smaller shrubs and a bench on the other is an example of what type of balance?
- A. Radial balance
- B. Symmetrical balance
- C. Asymmetrical balance ✓
- D. Formal balance
Why: Asymmetrical balance achieves visual equilibrium using unequal elements of differing visual weight placed on either side of a central point.
Q4. Why is the 'rule of thirds' often applied in garden layout?
- A. It requires exactly three types of plants in every bed
- B. It divides the space into roughly equal parts to create pleasing, dynamic proportions ✓
- C. It ensures all paths are three feet wide
- D. It limits the garden to three colors
Why: Dividing a space into thirds, or placing focal points at intersections of those divisions, creates visually pleasing proportions that feel natural to the eye.
Q5. Which approach best helps a small garden feel more balanced and proportionate?
- A. Using many large, oversized features to fill the space
- B. Choosing plants and structures scaled to the size of the area ✓
- C. Placing a single tall tree in the center with nothing else
- D. Adding as many different plant varieties as possible
Why: Scaling plants and features to the available space keeps the garden in proportion and prevents it from feeling cluttered or overwhelming.
Module 3
Module 3: Color Theory in the Garden
Color Theory in the Garden
Knowledge check
Q1. Which color is considered a primary color in traditional color theory used for garden design?
- A. Green
- B. Red ✓
- C. Orange
- D. Violet
Why: Red, yellow, and blue are the traditional primary colors. Green, orange, and violet are secondary colors created by mixing primaries, so red is the correct answer.
Q2. Which pairing of colors is considered complementary on the color wheel?
- A. Red and green ✓
- B. Red and orange
- C. Blue and violet
- D. Yellow and green
Why: Complementary colors sit opposite each other on the color wheel. Red and green are directly opposite, so they create strong contrast and vibrancy when placed together in a garden.
Q3. What is the main effect of using analogous colors in a garden bed?
- A. They create dramatic, high-contrast focal points
- B. They produce a harmonious, calming look ✓
- C. They make the garden appear smaller
- D. They attract only pollinators that prefer one color
Why: Analogous colors are neighbors on the color wheel, such as blue, violet, and purple. Because they share a common hue, they blend smoothly and create a restful, harmonious effect.
Q4. Which color is generally perceived as receding, making a garden space seem larger when used at the back?
- A. Bright red
- B. Hot orange
- C. Cool blue ✓
- D. Vivid yellow
Why: Cool colors such as blue, purple, and silver tend to recede visually, creating a sense of depth. Warm colors like red, orange, and yellow advance toward the viewer, so placing cool tones at the back can enlarge the perceived space.
Q5. What does a monochromatic color scheme in a garden involve?
- A. Using many different bright colors together
- B. Using only one color in varying shades, tints, and tones ✓
- C. Using only white and green plants
- D. Alternating two complementary colors in every bed
Why: A monochromatic scheme uses a single hue and varies it through lighter tints, darker shades, and muted tones. This creates a unified, elegant look with subtle variation.
Module 4
Module 4: Plant Selection and Placement
Plant Selection and Placement
Knowledge check
Q1. When selecting plants for a garden, which factor should be considered first to ensure long-term success?
- A. The color of the flowers
- B. The site conditions such as sunlight, soil type, and moisture ✓
- C. The price of the plant at the nursery
- D. How quickly the plant can be purchased
Why: Site conditions like sunlight, soil, and moisture determine whether a plant can survive and thrive. Choosing plants suited to these conditions reduces maintenance and failure rates.
Q2. What does the term 'mature size' refer to when planning plant placement?
- A. The age at which a plant first blooms
- B. The height and spread a plant reaches when fully grown ✓
- C. The number of years a plant lives
- D. The season in which a plant is most attractive
Why: Mature size is the expected height and width of a plant at full development. Planning around it prevents overcrowding and reduces the need for pruning or removal later.
Q3. Why is it generally recommended to place taller plants toward the north side of a garden bed in the Northern Hemisphere?
- A. Taller plants need more water from the north
- B. Taller plants will not cast shadows on shorter plants that need sunlight ✓
- C. Soil on the north side is always richer
- D. Wind blows only from the north
Why: In the Northern Hemisphere the sun is generally in the south, so tall plants on the north side avoid shading smaller plants that need full light.
Q4. What is the main benefit of grouping plants with similar water and light needs together?
- A. It makes the garden look more crowded
- B. It simplifies irrigation and care while keeping each plant healthy ✓
- C. It increases the risk of pests spreading
- D. It guarantees all plants will bloom at the same time
Why: Hydrozoning, or grouping plants with similar needs, allows efficient watering and care, preventing overwatering drought-tolerant plants or underwatering thirsty ones.
Q5. Which planting approach helps create visual interest through layers in a garden?
- A. Planting all species at the same height
- B. Arranging plants in tiers from tall at the back to low at the front ✓
- C. Placing each plant type in a separate corner
- D. Using only one plant variety throughout
Why: Layering plants from tall in the back to short in the front creates depth, ensures every plant is visible, and gives the garden a balanced, layered appearance.
Module 5
Module 5: Creating Focal Points and Views
Creating Focal Points and Views
Knowledge check
Q1. What is the primary purpose of a focal point in a garden?
- A. To provide shade for seating areas
- B. To draw the eye and create a visual anchor within the landscape ✓
- C. To mark the boundary between two property lines
- D. To collect rainwater for irrigation
Why: A focal point is a feature that captures attention and organizes the surrounding space, giving the viewer a place to rest their eye and making the garden feel intentional.
Q2. Which of the following is a common example of a garden focal point?
- A. A compost bin tucked behind a shed
- B. A mature specimen tree, sculpture, or water feature ✓
- C. A row of vegetable seedlings
- D. A standard garden hose reel
Why: Focal points are typically striking, deliberately placed elements such as sculptures, fountains, or distinctive trees that stand out from the rest of the planting.
Q3. What does it mean to frame a view in garden design?
- A. To surround a distant view with elements such as arches, trees, or hedges that direct attention toward it ✓
- B. To paint a picture of the garden on a wooden panel
- C. To fence off the garden so that no views are visible
- D. To install glass walls around the patio
Why: Framing uses natural or built elements to enclose and emphasize a view beyond the garden, guiding the observer's eye toward a chosen destination.
Q4. Why is placing a focal point at the end of a garden path an effective technique?
- A. It makes the path shorter to walk
- B. It gives a sense of destination and encourages people to move through the space ✓
- C. It hides the path from view
- D. It prevents plants from growing along the path
Why: A path terminating at a focal point creates a sense of purpose and invites exploration, leading visitors through the garden while showcasing the feature.
Q5. Which principle helps ensure a focal point is effective and not overwhelming?
- A. Placing as many focal points as possible in one area
- B. Using bright colors on every plant
- C. Keeping focal points limited in number and giving them enough open space around them ✓
- D. Making the focal point the same size as the house
Why: Too many focal points compete for attention and create clutter, so a few well-placed features with breathing room around them have far greater impact.
Module 6
Module 6: Structure, Paths, and Hardscaping
Structure, Paths, and Hardscaping
Knowledge check
Q1. Which of the following is considered a 'hardscape' element in garden design?
- A. A perennial border of salvia and lavender
- B. A flagstone patio ✓
- C. A clump of ornamental grasses
- D. A compost heap made of leaves
Why: Hardscaping refers to the non-living, built elements of a garden such as patios, walls, paths, and steps. A flagstone patio is a classic hardscape feature, while the other options are softscape (living plants) or soil-building elements.
Q2. What is the main purpose of a desire line in garden path design?
- A. To mark the boundary between two property lines
- B. To show where people naturally walk across a lawn or open space ✓
- C. To indicate the location of underground irrigation pipes
- D. To plan the angle of sunlight across a bed
Why: A desire line is the worn path people create by taking the most direct or convenient route. Observing desire lines helps designers place paths where they will actually be used, rather than forcing people onto awkward routes.
Q3. Which path material is generally most suitable for a beginner-friendly, low-maintenance garden with gentle slopes?
- A. Loose gravel ✓
- B. Mortared natural stone with deep foundations
- C. Polished marble tiles
- D. Thin sheets of glass
Why: Loose gravel is inexpensive, easy to install, drains well, and is simple to repair or adjust. Mortared stone requires skilled installation, and polished marble and glass are slippery and impractical outdoors.
Q4. What is a recommended minimum width for a main garden path that two people need to walk side by side comfortably?
- A. 30 cm (about 12 inches)
- B. 60 cm (about 24 inches)
- C. 90 cm (about 36 inches) ✓
- D. 15 cm (about 6 inches)
Why: A main path is typically designed at about 90 cm (36 inches) or wider so two people can walk side by side or pass comfortably. Narrower widths suit secondary or informal paths.
Q5. Why is it important to slope a hard-surfaced path or patio slightly away from the house?
- A. To make the surface look more natural
- B. To reduce the cost of materials
- C. To encourage water to drain away from the building foundation ✓
- D. To make it easier to sweep leaves into a pile
Why: A slight slope, often around 1 to 2 percent, directs rainwater away from the house. This prevents water from pooling against foundations, which can cause damp, erosion, and structural problems.
Module 7
Module 7: Seasonal Interest and Maintenance Planning
Seasonal Interest and Maintenance Planning
Knowledge check
Q1. Which approach best creates year-round seasonal interest in a garden?
- A. Planting only annuals that bloom in midsummer
- B. Combining plants that offer flowers, foliage color, berries, or bark across different seasons
- C. Using only evergreen shrubs with identical green foliage
- D. Removing all perennials after they finish flowering
Q2. Why are ornamental grasses valued for winter interest?
- A. They lose all their structure in autumn
- B. Their seed heads and dried foliage remain standing and catch frost and low light
- C. They produce bright red berries in December
- D. They stay bright green under snow cover
Q3. What is a common maintenance task that should be scheduled in late winter for many deciduous shrubs?
- A. Deadheading roses in July
- B. Pruning to shape and remove dead or crossing branches while they are dormant
- C. Applying mulch during peak summer heat
- D. Dividing spring-flowering bulbs while they are in full bloom
Q4. When planning a garden's seasonal interest, why should you consider the plant's bloom time and foliage habits together?
- A. Foliage color is irrelevant once a plant has flowered
- B. Plants with attractive foliage can fill gaps after flowering ends, extending visual interest
- C. Bloom time only matters for vegetables
- D. Foliage and flowers always appear at the same time
Q5. What is the main benefit of planning a maintenance calendar alongside a planting plan?
- A. It eliminates the need for any watering
- B. It helps ensure tasks like pruning, dividing, and feeding happen at the right time for each plant
- C. It guarantees plants will never need replacing
- D. It prevents any plant from changing color through the year