Why a Shady Corner Is an Asset

Most salad crops are short-lived leaf machines, and leaf growth does not demand full sun the way fruiting crops do. Lettuce, rocket and spinach evolved as cool-season plants that bolt, turn bitter and go to seed the moment heat and long days arrive. A spot that receives three to five hours of sun — or dappled light filtered through a deciduous tree — slows that process down beautifully.

The practical upshot is a longer cropping window. While south-facing beds are producing tough, milky-tasting lettuce in July, a bed tucked against a north-east wall or shaded by a fence from midday onwards will still be giving you tender pickings well into August. Shade also means the soil stays cooler and damper, so seedlings establish with less panic watering on your part.

What you want is partial or dappled shade, not the bone-dry gloom under a conifer hedge or the dense shadow at the base of a tall wall. If the soil there is dusty, root-filled and pale, improve it first or grow in containers instead.

Which Leaves Cope Best

Not every salad is equally tolerant. These are the reliable performers in a UK shady corner:

• Loose-leaf lettuce — 'Salad Bowl', 'Lollo Rossa', 'Catalogna' and similar cut-and-come-again types. Far more forgiving than hearting varieties.
• Rocket — wild rocket handles shade and summer heat better than the annual salad rocket, and it will often overwinter.
• Spinach — 'Medania' and 'Perpetual' (which is really a leaf beet) crop steadily in light shade and resist bolting far better than in full sun.
• Lamb's lettuce — a classic winter salad, happy in shade and frost-hardy.
• Mizuna, mibuna and pak choi — quick, mustardy and productive, though slugs adore them.
• Chard, chervil and flat-leaf parsley — slower, but useful for filling gaps and giving you something to cut through autumn.

Leave cos lettuce, iceberg types and anything you intend to grow into a tight heart for the sunniest spot you have. They will sulk and rot in shade.

Preparing the Bed and Sowing

Salad leaves have shallow roots, so the top 15 centimetres of soil is what matters. Fork it over, remove stones and weed roots, then work in two or three bucketfuls of garden compost per square metre. If your shady corner is heavy clay, add grit as well; if it is sandy, the compost is doing double duty holding moisture.

Sow thinly in shallow drills about one centimetre deep, with rows 15 centimetres apart. Thin loose-leaf lettuce to roughly 15 centimetres between plants, rocket and mizuna to five or eight. Thinning feels brutal but overcrowded seedlings compete, stretch and run to seed early. Use the thinnings — they are the first salad of the season.

Sow little and often. A one-metre row every fortnight from March to September will out-produce a single big sowing, and in the shade you can keep sowing through midsummer when sunnier beds have given up. Water the drill before sowing if the soil is dry, then cover lightly and firm gently with the back of a rake.

Picking That Keeps Plants Tender

Regular picking is the whole trick. Once a leaf is fully expanded it starts to toughen, and the plant puts energy into flowering rather than fresh growth. Cut leaves when they are young and the plant barely notices.

• Start cutting loose-leaf lettuce when leaves reach 8 to 10 centimetres, taking the outer leaves and leaving the growing centre intact.
• For a true cut-and-come-again crop, shear the whole row back to about three centimetres above soil level with scissors. It will regrow two or three times.
• Harvest in the cool of the morning where you can; leaves hold better and last longer in the fridge.
• Pinch out any flower buds you spot on rocket or spinach immediately — once they set seed, leaf production stops.

Never strip a plant bare. Taking a third of the leaves at a time keeps photosynthesis ticking over and regrowth quick.

Watering, Feeding and Shade Pests

Shade holds moisture, but competition from tree roots can dry a bed out surprisingly fast. Water thoroughly once or twice a week rather than little and often, aiming for damp soil five centimetres down, and water in the morning so foliage dries before evening. A mulch of compost or grass cuttings will halve the watering you need.

Feed lightly. A fortnightly dilute seaweed or comfrey feed keeps leaves coming, but too much nitrogen gives soft, sappy growth that slugs and aphids will find first.

The damp, still air of a shady corner does bring problems:

• Slugs and snails — the main threat to seedlings. Night patrols with a torch, beer traps and nematode drenches all work; start before you sow.
• Grey mould — remove affected leaves at once and space plants a little wider to improve airflow.
• Downy mildew — yellow patches on the upper leaf with fuzzy growth beneath. Thin out, water the soil not the leaves, and resow resistant varieties.
• Aphids — usually a spring flush. Squash them by hand or blast with water; the ladybirds will catch up.

A Year in the Shady Bed

From March, sow lettuce, rocket and spinach successionally. Through June and July, when full-sun beds struggle, your shady corner becomes the best salad ground in the garden — keep sowing and keep cutting. In late August, sow lamb's lettuce, winter purslane and more mizuna for autumn and winter pickings, and throw a cloche or fleece over the bed from November to keep the worst of the frost off. Top up with compost each spring, and a modest shady corner will quietly feed you salad for most of the year.