A garden survey maps sun, soil, slope, water, access, and fixed features so you can place plants and paths with confidence.
Garden Survey At A Glance (Checklist & Tools)
Think of this as a quick log you build over a weekend. Walk the site, sketch as you go, add measurements. This table keeps the process tidy.
| What To Log | Quick Method | Tip |
|---|---|---|
| Boundaries & size | Measure sides, diagonals, and note any angles | Use a 30–50 m tape and mark a north arrow |
| Fixed features | Plot house, doors, windows, trees, sheds, taps | Take distances from two known points |
| Sun & shade | Mark shadows at 9am, noon, 3pm across seasons | Note winter low sun and summer high sun |
| Soil | Texture by hand, pH test, sample for a lab | Label samples by bed or zone |
| Slope & drainage | String level or hose level; dig a percolation pit | Time water soak-in after rain |
| Wind & shelter | Flag flutter test, note gust paths | Check fence gaps and tall hedges |
| Access & utilities | Trace paths, gates, taps, power, septic lines | Confirm locations before digging |
| Views & noise | Stand in main spots; note sightlines | Screen bad views, frame good ones |
How To Survey Your Garden: Step-By-Step Plan
Work from the big picture to the small parts. Map the shape, add the fixed pieces, then layer in living factors like sun, water, and wind.
Fix The Baseline Map
Start with the outline. Measure each edge and the two diagonals so your sketch is true. Add a simple scale, such as 1 cm to 1 m, and draw a north arrow. If the plot is not a neat rectangle, break it into triangles and record each side.
Plot Fixed Features
Set the house footprint, doors, windows, steps, and fences. Add gates, sheds, hard paving, drains, taps, inspection covers, trees, poles, and raised beds. Use two distances from known corners to place each item by triangulation. Note tree trunk position and current canopy spread.
Track Sun And Shade
Light shapes what will thrive. Mark where shade lands at three points in the day. Repeat this in cool and warm seasons if you can. Tall walls and evergreen trees throw long winter shade. Deciduous trees open light in spring.
Read The Ground
Next, read slope and water. Stretch a string between two stakes with a line level to gauge fall. Dig a 30 cm deep hole, fill with water, and time how fast it drains. Slow drainage points to heavy clay or a hardpan. Fast loss hints at sand or rubble.
Test The Soil
Rub a moist pinch to judge texture. Gritty suggests sand, silky points to silt, sticky is clay, and a mix forms loam. Check pH with a kit or send a sample to a lab for a fuller read. The RHS guide to pH and testing explains quick kits and when lab reports help.
Note Wind And Microclimates
Tie bright ribbon to canes and watch direction and gust strength. Mark wind tunnels between buildings, and calm eddies behind hedges. Brick and stone store heat; water and dense shade stay cool. Frost settles in low dips.
Time Water And Flow
List taps, water butts, downpipes, and any irrigation. Watch how rain runs off roofs and paths. Note where puddles linger and where mulch dries fast. Set walk lines that match how people move from door to shed, shed to compost, kitchen to herb bed.
Take Photos And Notes
Photograph each side while standing at the same marked spots. Shoot in bright sun and again on a cloudy day so shapes are clear. Number the shots to match points on your map.
Set Zones And Use
Place quick-reach items near the door: herbs, salad beds, bins, and a hose. Mid-zone suits fruit bushes, flowers, work space, and a bench. Far edges handle trees, compost, and wildlife corners. Keep routes wide enough for a barrow, and plan turning circles at gates and corners.
Measuring Methods That Keep Results Honest
Clean methods make a tidy plan. Choose one system and stick with it across the site so small errors do not add up.
Triangulation
From two fixed corners, measure to the feature and mark the point where the arcs meet. This locks the item in place without complex gear and works well around trees and curved beds.
Offsets From A Baseline
Run a straight baseline along a fence or wall. Measure at right angles to each target point. This suits long, narrow plots and keeps measurements neat on graph paper.
Tapes, Lasers, And Apps
A tape is cheap and reliable. A laser handles long spans and one-person work. Mapping apps can store points and photos, yet still draw a scale plan by hand so you stay in control of the layout.
Soil And Site Data You Can Pull Online
Many regions publish soil maps and notes on drainage and texture. In the U.S., the USDA’s Getting Started with Web Soil Survey shows how to set an area, view maps, and download reports. If that service is not in your region, check your agriculture ministry or land survey office for local soil and flood maps.
Treat online layers as guidance, not gospel. Walk the ground after rain, dig a few quick test pits, and compare what you see with the map. When the two disagree, trust your shovel and update the plan. Carefully.
Design Moves From Your Findings
Turn raw notes into placement wins. Group thirsty plants where downpipes feed, and place raised beds where soil warms early. Put seating where evening sun lands but winds ease. Shape beds on contour to slow runoff, and keep trees clear of overhead lines and footings.
Right Plant, Right Place
Match shade lovers to cool corners and heat lovers to bright spots. Pick rootstocks and mature sizes that suit the space you measured, not the size on the day you buy them. Tough ground may call for mounded beds and organic matter over time.
Paths, Beds, And Access
Main paths should take two people side by side. Service paths can be narrower. Curves look soft yet follow clear radii so a barrow flows. Keep bed widths reachable from both sides.
Typical Dimensions To Keep You On Track
Use these starting points, then adjust to your space and needs.
| Item | Rule Of Thumb | Notes |
|---|---|---|
| Main path | 90–120 cm | Two people or a wide barrow |
| Service path | 60–75 cm | One person and tools |
| Bed width | 90–120 cm | Reach from both sides |
| Tree setback | At least mature radius from walls | Protect drains and footings |
| Compost zone | Near beds, away from doors | Easy barrow turn space |
Common Mistakes And Easy Fixes
Skipping diagonals. Measure those to catch skew and align your whole plan.
Guessing light. Draw real shade lines from winter and summer. Plants fail if this is wrong.
Rushing soil work. Texture, pH, and drainage steer plant choice and bed build. A small test saves rework.
Forgetting traffic. Map how people and barrows move. Tight corners chew up lawn edges and bark mulch.
Planting under lines. Check overhead wires and underground services. Move trees clear before roots and crowns spread.
Mini Checklist Before You Start Digging
Mark all services. Confirm water, gas, power, and drains. Call your local locate service or check official maps. Set out bed edges with string and pegs, lay hose lines to test reach, and walk every route with a barrow. If anything snags, adjust the plan on paper first, then on the ground.
Bring It All Together
Your survey is a living map. Keep a folder with the base plan, a sheet for sun and shade, one for soil notes, and a layer for planting. Update after storms or new work. Clear records let you pick plants faster, set beds where they will thrive, and enjoy a garden that works the way you move through it.