What to Plant in July in the UK: A Weekend Family Gardening Guide

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July is the month the UK garden hits its loudest. The roses are blowsy, the courgettes are silly with fruit, the lawn looks tired, the sunflowers are starting to overtake the wash line — and the schools are about to break up. This is the month the children genuinely earn their keep in the garden: the harvest is constant, the watering matters, and there are flowers to deadhead and beans to pick on every walk past the back door.

This guide pulls together what to plant in July in a UK family garden, the jobs that actually matter when it’s hot, and the school-holiday projects that have worked for us. We’ve grouped the work by how much time you’ve got — 30 minutes, a Saturday morning, or a proper weekend — so you can dip in for whatever fits. If you’re trying to keep the garden alive through a heatwave or a fortnight abroad, scroll down to the heat-wave playbook.

Vegetables to plant in July (UK)

July sowings are about three things: keeping the salad bowl full, planting for autumn, and tucking in the crops that will overwinter. The soil is warm, germination is fast, and a lot will go from seed to plate before the schools go back.

Direct sow into the ground

Dwarf French beans — a late-July sowing crops in September and gives you a second flush after the first sowing has tired.
Pak choi and oriental leaves — happiest sown now; cooler nights stop them bolting straight away.
Maincrop carrots — sow short rows for lifting in November for winter storage.
Beetroot — keep sowing every fortnight. ‘Boltardy’ is the most forgiving in summer heat.
Spring cabbages — sow now in modules, plant out in September, eat in April. The single most useful crop in the hungry gap.
Spring onions — a short row every three weeks gives a constant supply for salads.
Radishes — still going in four-week cycles; sow in part-shade in July to slow bolting.
Last peas — a quick variety like ‘Kelvedon Wonder’ sown in early July will crop before the autumn frosts.

The catch-up crops

If something didn’t crop earlier — your salad bolted, your radishes were eaten by slugs, your courgettes never flowered — July is still salvageable. Buy plug plants of any of the warm-season crops (tomatoes, peppers, courgettes, cucumbers) and you’ll still get a harvest before October. Garden centres clear them at half price in mid-July; the bargains can be excellent.

Winter and overwintering crops

Purple sprouting broccoli — sow in modules early July, plant out in late July, eat in February. The single best vegetable to plant this month.
Winter cabbage and kale — ‘January King’ for cabbage, ‘Cavolo Nero’ for kale. Both want a long summer of growth ahead of them.
Leeks — pencil-thin plants planted out in July reward you in November.
Florence fennel — earlier sowings tend to bolt; July is the right time. Bulbs in autumn.

What to harvest in July — the school-holiday peak

July is the month the garden gives back. This is the harvest list to walk around with the children on the first day of the summer holidays, basket in hand:

Strawberries — peak now and into early August. Pick into a shallow tray; pile them up and the bottom layer turns to jam.
Raspberries — summer-fruiting types crop now. Pick every other day or the blackbirds will.
First-early potatoes — ‘Charlotte’, ‘Maris Bard’, ‘Pentland Javelin’ should be ready ten weeks after planting. Loosen with a fork, let the children scrabble.
Broad beans — pick them when the pods are about 8 cm long for the sweetest beans inside. Older pods get floury.
Peas — pick from the bottom up, pick young, eat in the garden. Children rarely refuse a sun-warmed pea.
Courgettes — twice a week, at 15 cm. Once one becomes a marrow the rest follow.
Lettuce, rocket and salad leaves — cut-and-come-again will go on until the heat makes them bolt.
Spring onions, radishes — pulled fresh, eaten in twenty minutes.
Herbs — basil, parsley, mint, chives. The kitchen smells of summer.

Quick wins — fast crops kids can still grow before the schools go back

Sown on a Saturday afternoon in July, these will be ready on the kitchen table before the children go back to school:

Radishes — three to four weeks. ‘French Breakfast’ is the prettiest. The single most reliable child-grown crop.
Cut-and-come-again salad — two to three weeks for the first cut.
Rocket — peppery and fast. Sow in part shade so it doesn’t bolt.
Pea shoots — sow a tray of marrowfat peas thickly; snip the shoots at 10 cm.
Microgreens on a windowsill — cress, mustard, mizuna, basil. Ten days from seed to scissors. A rainy-day project the children can do indoors.

Container-first — no garden, no problem

If you’re working with a patio, a balcony, or pots by the back door, July is the easiest month to start with children — the growth is fast, the weather is reliable, and almost everything that crops in open ground will crop in a pot the size of a washing-up bowl. Lettuce, radish, rocket, pea shoots, dwarf French beans, herbs and strawberries all love a container. The single rule: water every day, in the morning, into the base of the pot.

Flowers to sow and plant in July

Hardy annuals for next year

Sown now and overwintered as small plants, these flower three or four weeks earlier next spring than ones sown in March, and the plants are sturdier. The trick almost no gardening guide mentions:

Cornflowers (‘Blue Boy’ is hard to beat).
Calendula — sow direct into a gap, comes up in a week.
Californian poppies — silky orange, will self-sow for years.
Larkspur for spires of blue, pink or white next May.
Nigella (‘Love-in-a-mist’) — for the seed-heads as much as the flowers.

Biennials

Sown in July, planted out in autumn, in flower next summer:

Foxgloves (‘Sutton’s Apricot’ or the native).
Wallflowers for spring scent at the front door.
Sweet williams — the children love the freckled faces.
Honesty for the silvery seed-pods in December.

Order autumn-planted spring bulbs

The best varieties of tulip and daffodil at the specialist nurseries sell out by mid-September. July is the month to look at catalogues and place orders for planting from late August (daffodils) through to November (tulips). It’s the highest-leverage forty minutes of the family-garden year.

A free-plants project: peg out strawberry runners

This is the cleverest July project nobody tells you about. Strawberry plants throw out long stems (runners) with baby plants on them, looking for somewhere to root. Most people cut them off. Don’t. Peg three or four runners per plant down into a small pot of compost set into the bed next to the parent, hold them in place with a U of bent wire, and leave them. In six to eight weeks each one will have grown its own roots; snip the runner that connects it to the parent and you’ve got a free plant — exactly the same variety as the parent — ready to put in the ground in September for a full crop next June.

It is the single best garden-project-for-children-with-a-pay-off-in-September we know. Each child picks “their” runner, labels the pot, watches it root, and plants it out in the autumn.

July garden jobs — by how much time you have

The July garden largely looks after itself if four or five small jobs tick over each week. We bucket them by time so a thirty-minute window after work still counts for something.

Quick wins (30 minutes)

Water deeply, not often. A 5-litre can poured slowly at the base of a tomato plant beats a daily sprinkle every time.
Deadhead roses, dahlias, sweet peas, cosmos and bedding. Two passes a week and the flowering season lasts a month longer.
Tomato feed. Once the yellow flowers have dropped and small green tomatoes appear, a weekly liquid feed makes the difference between a handful and a glut.
Slug patrol after rain. Torch, jam jar, five minutes. Saves a row of lettuce.
Pinch tomato side-shoots on cordon varieties. Five seconds per plant.
Top up bird baths. The garden birds are extra grateful in a dry July.

A Saturday morning (2-3 hours)

Trim evergreen hedges — box, privet, yew, holly. They are in active growth and respond well to a clip. Lay a tarp at the base; the children can do the sweeping up.
Lavender harvest. Cut as soon as the bottom buds open and the rest are still tight. Hang in small bundles upside-down in a shed for a fortnight; the dried buds smell of summer for years.
Earthing-up maincrop potatoes — drag soil around the stems to keep the tubers in the dark.
Lift first earlies properly. Loosen with a fork from the side, let the children rummage. Wash, boil for fifteen minutes, eat with butter.
Net the soft fruit. Blackbirds will strip a raspberry cane in a day. Drape fine netting; the children manage the corners.

A full weekend project

Plant out winter brassicas — broccoli, kale, cabbage, sprouts. Firm in hard with the heel of your boot. Wobbly brassicas don’t heart up. Net immediately.
Peg out strawberry runners — see the section above. Half an hour now is twenty free plants in September.
Save seed from anything that’s gone over: sweet peas, calendula, poppies, nasturtiums. Brown paper envelopes in the dry shed.
Set up the holiday-proofing rig — see below.

A heat-wave playbook for the UK family garden

UK summers used to be reliably grey; recent ones haven’t been. Five jobs make the biggest difference when the temperatures climb:

Mulch everything. A 5-cm layer of compost, well-rotted manure or grass clippings shades the soil, halves the watering need and feeds the plants. The single highest-impact half-hour of the summer.
Water at dawn or dusk, never in the middle of the day. Water on hot leaves can scorch them; water in cool air gets to the roots before it evaporates.
Group pots together in dappled shade. One pot in full sun dries out in a day; a cluster in shade can go four days.
Move tomatoes out of greenhouses for the hottest week. Greenhouse temperatures cook fruit. Open every vent, prop the door open, and consider standing pots outside.
Don’t mow short. Raise the blade by one notch — taller grass shades its own roots and stays green a week longer in a drought.

Going on holiday in July or August?

The summer-holiday version of the August playbook, started in July:

Harvest everything the morning you leave. Courgettes, beans, tomatoes the size of a plum, lettuces about to bolt. What you don’t pick will either rot or go to seed.
Mulch the borders and pots. 5 cm of compost.
Group pots in dappled shade.
Rig drip-bottles for the thirstiest plants. A 2-litre bottle with three pinholes in the cap, inverted in the pot, gives a slow week-long drip.
The neighbour swap. Offer your courgettes (they will be polite about already having too many of their own) in exchange for one or two waterings on the hottest days.
Mow high the day before, then leave it.
Expect a few losses. A bolted lettuce or a baked basil is the cost of doing business with a UK summer.

School-holiday projects — what works

Six weeks off school, two weeks of which it will probably rain. The projects that have worked for us:

The daily harvest. First job of every morning: child gets a basket, walks the veg patch, picks anything ready. Twenty minutes outdoors before screens. Sets the day up.
The sunflower height contest. Marker pen, garden cane, weekly height entries on the kitchen wall. Our current record is 2.4 m. We’d love to see one of yours go further.
Strawberry runner adoption. Each child names and pots up a runner, watches it root, plants it out in the autumn. Pay-off in next June’s first ripe strawberry — a year-long project that genuinely holds.
Edible flowers for a tea-party plate. Nasturtium, calendula, pansy petals scattered over a salad or a cake. Picked by the children; the cake is decorated; nobody refuses dinner.
Pressed-flower craft. Heavy book, kitchen roll, weekend of pressing — Monday’s project is a thank-you card for grandparents.
Seed-saving. Brown paper envelopes, marker pen, kitchen table. Calendula, sweet pea, nigella, sunflower. Free seed for next year and a quiet hour indoors on a wet afternoon.
Slug patrol with a head-torch. The single most reliably-thrilling family garden activity. Goes for half an hour, saves a row of lettuce, the children think they are heroes.

For more, our kids’ gardening guide for May half-term and the June companion cover the front end of the season; the August edition picks up where this one leaves off, with autumn planting and holiday-proofing.

When it goes wrong (it always does in a heatwave)

It’s worth saying out loud, because no gardening guide leaves space for it: things will go wrong in a UK July. The tomatoes will get blossom-end rot from inconsistent watering. The lettuce will bolt overnight in the heat. The strawberries will all ripen at the same time and the children will tire of them by Tuesday. The runner beans the five-year-old “watered with last night’s drink” will go yellow. The cat will sit on the spring cabbages.

None of this is a sign you’ve done it wrong; it is the standard cost of a UK family garden in a hot week. Resow, replant, restart. There is enough of the summer ahead to recover from any of it.

Frequently asked questions

Is it too late to plant vegetables in July in the UK?

No. July is one of the best months for second sowings and for planting winter crops. French beans, beetroot, carrots, salads, pak choi, spring cabbage, leeks and purple sprouting broccoli can all still go in. If you didn’t get tomatoes or peppers going in spring, buy half-price plug plants from a garden centre rather than starting from seed.

What can children harvest from their own garden in the school holidays?

Strawberries, raspberries, peas, broad beans, courgettes, first-early potatoes, lettuce, radishes, rocket, salad leaves, spring onions and herbs are all in season. The first job of every morning can be a walk round the veg patch with a basket; it sets the day up for them and for you.

How often should I water the garden in July?

Deeply, not often. A good soak twice a week beats a daily sprinkle every time — it draws the roots down rather than keeping them at the surface. Water in the early morning or after sunset, at the base of the plant, ideally with a watering can rather than a hose. Pots and containers need a daily check; push a finger into the compost an inch deep, and water if it’s dry.

How do I keep the garden alive while we’re on holiday?

Five jobs make the biggest difference: harvest everything ripe the morning you leave, mulch the borders and pots with a 5-cm layer of compost, group containers together in dappled shade, rig 2-litre drip-bottles upside-down in the thirstiest pots, and arrange a neighbour swap (your courgettes for their watering can).

Can I sow flower seeds in July that will bloom this year?

The latest direct-sow that will still flower this season is calendula in the first week of July — it will be in bloom by late August. After mid-July, focus on sowing hardy annuals like cornflowers, larkspur and nigella for next year, and biennials (foxglove, sweet william, wallflower) that will flower next summer.

What is the most useful thing to plant in July with children?

Strawberry runners pegged into pots set into the bed next to the parent plant. Each child names and labels “their” runner, watches it root over six to eight weeks, and plants it out in September. The pay-off is next June’s first ripe strawberry from their plant. It is the only July project we know with a satisfying year-long arc.

Plan for the month ahead

If July is the harvest month, August is the autumn-prep one. By then the spring cabbages need planting out, the autumn bulbs need ordering, and the August-bank-holiday picnics are in sight. Our companion guides — May half-term, June and early August — cover the seasons either side. And if you’ve a child who has caught the bean-growing bug after this month’s runner harvest, our Easter runner-bean session is the project to come back to next spring.

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