Almost every seed packet says “full sun”, and almost no real garden has it. A north-facing balcony, a terrace behind a tall hedge, the strip beside the house, the bed under next door's sycamore — these are the spaces most people actually garden in, and they usually get two or three hours of direct sun rather than the six the packet asks for. The good news is that a surprising amount grows well there. The bad news is that the usual advice — “just choose shade-tolerant plants” — skips the part that determines whether it works. Late August is a good moment to think about this, because the sun is dropping fast now and a bed that looked sunny in June is already spending half the afternoon in shadow.
- Measure Count sun hours at the equinox, not in midsummer
- The rule Leaves 2–3 hrs · roots 4–5 hrs · fruit & seed 6+ hrs
- Expect 30–50% longer to maturity than the packet says
- Watch for Slugs, dry rain shadow, leggy seedlings
First, measure properly — and measure at the right time of year
Most people badly overestimate their light because they judge it in June, when the sun is high and clears the rooftops. Pick a clear day in late September or late March and photograph the space every hour from eight until six. Count only the frames where the soil is in direct sun. That number — not your impression of it — is your budget, and it is the honest one, because it represents the light your plants get during the two-thirds of the growing season that is not midsummer.
Three kinds of shade, three different problems
“Shade” covers three situations that behave nothing alike, and confusing them is why plant lists disappoint.
- Bright open shade — a north-facing wall, balcony or courtyard with clear sky above and no direct sun. This is by far the best kind: no direct beam, but a lot of diffuse light, and soil that stays evenly moist. Most leafy crops are perfectly happy here.
- Dappled shade under deciduous trees — plenty of light in March and April, deep shade by June, and dry soil all summer because the tree drinks first. Here the drought is the real limit, not the shade. Spring-flowering plants and early crops win; anything that needs water in July struggles.
- Deep dry shade — under evergreens, or between two buildings with the sky mostly blocked. Root competition plus a permanent rain shadow. Be honest: this is a place for pots, hardy foliage and low expectations rather than vegetables.
The rule that predicts almost everything
Forget memorising plant lists. Ask instead which part of the plant you intend to eat or enjoy, because that tells you how much sugar the plant has to manufacture — and sugar is made from light.
Leaves and stems need the least. Two to three hours of sun, or good bright open shade, is genuinely enough for lettuce, spinach, corn salad, mizuna, rocket, pak choi, chicory, endive, kale, sorrel and watercress. Several are actually better for it: leafy crops in shade bolt later and taste less bitter, which is why a shaded bed is the best place for summer salad.
Roots need a bit more. Four to five hours will give you decent radishes, small beetroot and reasonable spring onions. Below that you get leaves and very little underneath. Peas and broad beans sit in between and will crop lightly in three or four hours.
Fruit and seed need full sun, and there is no way round it. Tomatoes, peppers, chillies, aubergines, courgettes, squash, sweetcorn and sunflowers need six hours or more. In three hours they grow, flower feebly, and rot before they ripen. Do not spend a season proving this.
Herbs split along the same line. The soft, leafy ones — parsley, chives, chervil, mint, coriander — do well in partial shade. The Mediterranean, aromatic-oil group — rosemary, thyme, oregano, basil — will survive but taste thin, because the oils that carry the flavour are themselves built from light. Our guide to growing herbs from seed and the wider herb seed range go further.
Flowers for a shady spot
Shade planting has a reputation for being all foliage, which is unfair. Impatiens and begonias flower properly in genuine shade; lobelia, nasturtiums, violas and pansies are all happy on two or three hours, and pansies in particular last far longer out of hot afternoon sun — see how to grow pansies from seed. For height, foxgloves are a woodland-edge plant by origin and one of the few tall flowers that genuinely prefers dappled light; there is a full foxglove growing guide if you want to sow some this autumn. Browse the rest of the flower seed range or start with our beginner's guide to flowers from seed.
Making a shady space work
- Germinate in the light, grow in the shade This is the single biggest fix. Seedlings raised in low light stretch and never recover — start them somewhere bright, then plant out. See leggy seedlings.
- Add time, not fertiliser Expect 30–50% longer to maturity. Sow earlier and harvest later; feeding a light-starved plant only makes soft growth.
- Water the rain shadow The 60 cm nearest a wall or fence stays dry even in a wet week. Check it by hand — our watering guide explains how.
- Use reflected light deliberately A pale wall behind a north-facing balcony makes a measurable difference, and lifting one low branch off a tree often beats felling it.
- Take slugs seriously from day one Cool and damp is their ideal, and they are the commonest reason a shade bed fails. Evening patrols beat pellets; see garden pests.
Ground or pots?
Planting in the ground
Best for open shade beside a wall or fence, away from tree roots.
- Cool, even moisture — ideal for salad
- No daily watering
- Fixed: you cannot chase the sun
Growing in containers
Best under trees, on balconies and anywhere roots compete.
- Move pots into the sunny hours
- Escapes root competition entirely
- Dries out fast — water daily in summer
Under trees, containers win almost every time: you sidestep both the root competition and the rain shadow. Our container gardening guide covers compost, depth and drainage, and raised beds do the same job on a larger scale. In the very darkest corners, grow microgreens indoors instead and use the outdoor space for foliage.
Common mistakes in a shady garden
- Judging the light in June — the sun is 15–20 degrees higher then than at the equinox. A midsummer count flatters every garden.
- Trying fruiting crops anyway — a tomato in three hours of sun is a season lost. Grow leaves in the shade and save the sunny metre for the tomatoes.
- Blaming shade for dryness — under a tree, thirst kills far more plants than darkness does.
- Overfeeding to compensate — nitrogen cannot replace light. It just produces soft growth that slugs and mildew find first.
- Mulching a cold, wet corner too thickly — shade soil is already slow to warm. Keep mulch thin in spring.
- Sowing at the packet's spacing — give shade-grown plants more room. Every plant is competing for the same scarce light.
Frequently asked questions
What vegetables grow in 2–3 hours of sun?
Leafy ones: lettuce, spinach, rocket, mizuna, pak choi, chard, kale, corn salad, chicory, endive and sorrel, plus soft herbs such as parsley, chives, chervil and mint. All of them are harvested as leaves, so they never have to fund a fruit.
Is a north-facing garden hopeless?
No — it is usually better than a spot under a tree. A north-facing bed with open sky above gets a great deal of diffuse light and stays evenly moist, which suits salad and leafy greens very well. What it lacks is direct beam, so skip the fruiting crops and lean into leaves and foliage.
Do plants grow more slowly in shade?
Yes, and the sensible response is to plan for it rather than fight it. Add roughly a third to a half to the days-to-maturity on the packet, sow a little earlier, and space plants more generously. See the sowing calendar for timings you can shift.
Can I grow salad in shade over winter?
Only in your brightest spot. From November to February there is so little light that shade tolerance stops helping — the whole garden is effectively in shade. Give winter crops the sunniest position you have and read our guide to winter lettuce for the timing that makes it work.
A shady garden is not a lesser garden — it is a different one, with its own list. Count your hours honestly, match the crop to what you are harvesting, start your seedlings somewhere bright, and stay ahead of the slugs. Then browse our flower seeds and vegetable seeds with your real light budget in mind, and take a look through the rest of our growing guides. If you plant one thing this month, make it a tray of salad for that cool north-facing corner where nothing else has ever worked.
