Expert Garden Tips & Advice for July 2026

🌿 The July Garden — What to Expect

July is usually the warmest month of the British summer, with temperatures typically ranging from 18°C to 28°C, and higher still during any heatwave spells. Rainfall can be patchy and unpredictable, so watering becomes one of the most important jobs of the month. Established plants are growing strongly, but the combination of heat and dry spells means the garden needs regular attention to keep it looking its best.

🌱 Lawns

• Mowing in heat — Raise the mower blades slightly during hot, dry spells (to around 4–5cm/1.5–2in). Longer grass shades its own roots and copes far better with drought than a closely shaved lawn.
• Watering — Established lawns rarely need watering and will usually recover from browning once rain returns. If you do water, give a thorough soak once a week rather than little and often, which only encourages shallow roots.
• Drought stress — Don't panic if your lawn turns straw-coloured in a heatwave — this is a natural dormancy response, not death. Avoid heavy foot traffic on stressed lawns.
• New lawns — Any lawn sown or turfed this spring will need regular watering throughout July to establish properly.

🌸 Borders, Flowers & Bedding Plants

• Deadheading — Keep deadheading roses, dahlias, sweet peas, geraniums and bedding plants every few days. This remains the single best way to keep colour coming right through summer.
• Watering priorities — Focus your watering on recently planted perennials, shrubs and anything in its first summer in the ground. Water deeply at the base in the early morning or evening.
• Staking — Check ties and supports on tall perennials and dahlias regularly — summer storms can flatten unsupported plants overnight.
• Second flush — Cut back early-flowering perennials such as hardy geraniums, delphiniums and lupins once their first flush is over. Many will reward you with a fresh flush of growth and flowers by late summer.
• Late colour — There is still time to plant out dahlias, cosmos and zinnias from pots for a strong late-summer display.
• Lavender — Trim lavender lightly after flowering to keep plants compact and encourage a tidy shape, but avoid cutting into old, woody growth.

🌳 Trees, Shrubs & Climbers

• Watering newly planted shrubs — Anything planted within the last two years should be watered deeply at least once a week during dry spells, especially trees and hedging.
• Wisteria — Continue the summer prune started in June, trimming whippy new growth back to five or six leaves to encourage flower buds for next year.
• Hedges — Most formal hedges can have a second trim this month once the main summer growth flush has slowed, giving a crisp finish that will hold well into autumn.
• Climbing roses — Tie in new growth on climbers and ramblers as it extends, and deadhead repeat-flowering varieties to encourage further blooms.
• Mulching — Top up mulch around trees and shrubs if it has thinned, helping to lock in moisture during hot spells.

🥦 The Kitchen Garden — Vegetables, Fruit & Herbs

• Harvesting — July is one of the busiest harvesting months: courgettes, broad beans, peas, early potatoes, garlic and soft fruit will all be ready. Pick regularly to keep plants productive.
• Tomatoes — Continue feeding weekly with a high-potash liquid feed and pinch out side shoots on cordon varieties. Water consistently to avoid blossom end rot and split fruit.
• Sowing — There is still time to sow quick-maturing crops such as beetroot, salad leaves, spring onions and dwarf French beans for an autumn harvest.
• Soft fruit — Net currants, gooseberries and raspberries against birds, and pick regularly once ripe. Summer-prune trained fruit trees such as apples and pears once new growth has firmed up.
• Watering the kitchen garden — Prioritise water for fruiting crops, especially as fruit is swelling — irregular watering is the main cause of split tomatoes and bitter cucumbers.
• Pests to watch for — Continue checking for blackfly, caterpillars and slugs, and keep an eye out for early signs of blight on tomatoes and potatoes during humid spells.

🪴 Pots, Containers & Hanging Baskets

• Watering — In hot weather, containers and hanging baskets may need watering twice a day, particularly terracotta pots which dry out quickly. Check by pushing a finger into the compost.
• Feeding — Keep up a high-potash liquid feed every 7–14 days to sustain flowering right through the summer.
• Deadheading — Regularly remove faded flowers to keep displays fresh and prevent plants putting energy into seed production.
• Holiday watering — If you're away this month, group pots together in light shade, use saucers to hold reserve water, or consider a simple drip-irrigation system on a timer.

🦋 Wildlife, Ponds & the Environment

• Pollinators — Lavender, buddleia, verbena and echinacea are all in full swing now and will be busy with bees and butterflies — avoid spraying open flowers with pesticides.
• Ponds — Top up water levels during dry spells and continue to thin excess pond weed, leaving it at the water's edge overnight so wildlife can return to the water.
• Hot weather wildlife care — Leave out shallow dishes of water for birds, hedgehogs and other visitors during hot spells, and refresh daily.
• Water conservation — Use stored rainwater wherever possible during dry weather — it's free, and better for your plants than tap water.