Top 10 Tasks for UK Flower & Shrub Gardeners in July
1. Deadhead Flowers Regularly
Keep roses, bedding plants and perennials flowering by removing spent blooms. This diverts energy into producing more flowers rather than seeds, and keeps displays looking neat.
2. Water Thoroughly, Especially New Plantings
July may well bring more heatwaves. Water deeply a couple of times a week rather than little and often. Prioritise newly planted shrubs and perennials which have not yet established deep roots.
3. Feed Containers and Hanging Baskets
Plants in pots dry out quickly and nutrients get washed away. Feed with a balanced liquid fertiliser every week to keep displays lush and flowering continuously.
4. Trim Hedges and Lightly Prune Shrubs
Most evergreen hedges can be trimmed this month. Lightly prune shrubs like philadelphus and weigela after flowering to shape and encourage strong growth next year.
5. Check for Pests and Diseases
Warm humid weather brings aphids, red spider mite and mildew. Inspect plants regularly, squish small infestations or use organic treatments to keep problems from spreading.
6. Support Tall Perennials
Tall plants like delphiniums, lilies and hollyhocks may flop after rain. Tie them to stakes or use plant supports to keep them upright and showy.
7. Layer or Take Softwood Cuttings
July is a great time to propagate shrubs like hydrangea, fuchsia or lavender by layering or taking cuttings. This ensures more plants for free next year.
8. Weed Beds and Mulch if Dry
Continue hoeing or hand-weeding. If prolonged dry weather arrives, apply a mulch to lock in moisture and keep roots cool.
9. Top Up Water Features and Bird Baths
Keep ponds, water bowls and bird baths topped up — essential for wildlife in the heat. Clean regularly to avoid algae build-up.
10. Plan Late Summer Colour
Think ahead and plant out late summer flowers like asters, sedums and chrysanthemums, or order autumn-flowering bulbs such as nerines for extended seasonal interest.
Top Tip: Take a moment each evening to wander and enjoy the garden. It helps you spot problems early — and reminds you why all the effort is worthwhile!