Garden planning is the work you do before you plant, and it decides whether the garden that follows is a pleasure or a struggle. A planned garden puts the right plants in the right places, leaves room for paths and access, and keeps producing through the seasons. An unplanned garden puts sun-lovers in shade, tall plants in front of short ones, and the compost heap where the vegetable beds should be — and then spends years being fixed. Planning does not need to be complicated: a sketch on paper, a note of where the sun falls, a soil test and a planting calendar are enough. This guide covers the steps of garden planning in order, so you can plan a new garden or improve the one you have.
Step 1: observe the site
Before you buy a single plant, spend time watching the garden. Note where the sun falls at different times of day and in different seasons — a spot that is sunny in summer may be shaded in winter when the sun is low. Note where water collects after rain, where the wind comes from, and where frost settles first — low spots and hollows are frost pockets. Note the existing trees, fences, buildings and views, and which parts of the garden you actually use and see from the house. Walk the garden in the rain and after heavy rain, and look at the soil: is it sandy, clay, stony, dark and rich, or pale and thin? Dig a small hole and look at the soil profile. This observation stage costs nothing and saves the most mistakes. If you are unsure what your soil is, test it — our soil pH testing guide explains how — and check your local extension service for local soil and climate advice.
Step 2: map the sun
Sun mapping is the most important part of garden planning, because sun decides what will grow where. On a sunny day, sketch the garden and mark the shadows at 9 am, noon and 4 pm. Repeat the sketch in different seasons if you can, because shadows move as the sun's path changes. Mark the areas that get full sun — six or more hours of direct sun — partial shade, and full shade. Most vegetables and many flowers need full sun, so the vegetable beds and the sunniest flower borders go in the full-sun areas. Shade-loving plants, a seating area and the compost heap go in the shadier spots. Remember that a tree that is small now will cast far more shade in ten years, so plan for its mature size. Our garden design basics guide covers layout, and the garden planner can help you draw the plan.
Step 3: plan zones and access
Divide the garden into zones by use: the vegetable garden near the kitchen, the herb garden by the door, the flower borders where they are seen from the house, the lawn or seating area for relaxing, the compost and storage area out of sight, and the children's or wildlife area if you have one. Put the things you visit daily — the kitchen garden, the herbs, the watering tap — close to the house, and the things you visit weekly — the compost heap, the shed — further away. Plan paths before beds: main paths should be at least 90 cm wide for a wheelbarrow, secondary paths at least 45 cm. Make sure every bed is reachable without stepping on the soil — beds no wider than about 1.2 metres if reached from both sides. Plan for water: put a tap or a rain barrel near the vegetable garden, and consider drip irrigation from the start — our watering systems guide compares the options.
Step 4: choose plants for the site
Choose plants that suit the site you have, not the site you wish you had. A sunny, dry garden needs drought-tolerant plants — see our hot climate gardening and mediterranean gardening guides. A shady garden needs shade lovers. A wet garden needs plants that tolerate wet soil and good drainage — see our humid climate gardening guide. Check the mature height and spread of every tree and shrub before planting, and check its hardiness for your zone. Buy from local nurseries, which stock plants that grow well locally, and check your local extension service for plants and varieties proven in your area. Plan for succession so there is something in flower or to harvest in every season — our succession planting guide explains how — and include evergreen structure so the garden looks good in winter too.
Step 5: soil, beds and planting calendar
Improve the soil before you plant, not after. Work compost into beds, fix drainage problems, and build raised beds where the soil is poor or wet — our composting basics guide explains how to make compost, and the raised bed soil calculator works out how much soil you need. Then make a planting calendar: note what to sow and plant in each month, using the seed starting calculator to work out sowing dates and zone pages such as zone 10 tomatoes for planting times. Plan crop rotation from the start — our crop rotation guide explains a simple four-bed rotation — so you do not grow the same family in the same bed year after year. Keep the plan: a sketch with what was planted where each year is the most valuable document a gardener owns, and it makes next year's planning far easier.
Common mistakes
The most common planning mistake is planting before observing the site, so sun-lovers end up in shade and the vegetable garden ends up where water collects. The second is no sun map, so beds are placed by guesswork. The third is forgetting access — beds too wide to reach, paths too narrow for a wheelbarrow, no tap near the vegetables. The fourth is planting trees too close to the house or to beds, so they shade everything within a few years. The fifth is choosing plants for their looks without checking whether they suit the soil and climate. The sixth is no rotation plan, so pests and diseases build up. And the seventh is planning only for spring, so the garden is empty by late summer — plan for the whole year, with succession sowing and winter crops.
Frequently asked questions
How do I start planning a new garden?
Observe the site first: sun, shade, wind, water, frost and soil. Then map the sun, divide the garden into zones by use, plan paths and beds, choose plants that suit the site, improve the soil, and make a planting calendar. Start small and add to the plan as you learn what works.
How do I map the sun in my garden?
On a sunny day, sketch the garden and mark the shadows at 9 am, noon and 4 pm. Repeat in different seasons if you can. Mark full sun — six or more hours of direct sun — partial shade and full shade, and put vegetables and sun-loving flowers in the full-sun areas.
How big should garden beds be?
No wider than about 1.2 metres if you reach them from both sides, so you can tend the middle without stepping on the soil. Paths should be at least 45 cm wide, and 90 cm on main paths for a wheelbarrow. Length can be whatever suits the plot.
What should I put in a garden plan?
The shape and size of beds and paths, the sun map, what was planted where each year for rotation, sowing and planting dates, and notes on what worked and what did not. Keep it from year to year — it makes each year's planning easier.
Should I plan the whole garden at once?
Plan the structure — paths, beds, trees, water — all at once, because those are hard to move. Plant in stages, starting with the areas you use most, and let the planting develop over a few seasons. A garden planned all at once but planted gradually is the best of both. If you are unsure where to start, check your local extension service for local planning advice.