Your Essential Guide to Summer Pruning and Garden Maintenance
August is often thought of as a time to sit back and enjoy your garden – but it’s also the perfect month for important pruning tasks. With most spring and early-summer flowering plants now finished, pruning in August helps shape your garden, promote healthy regrowth, and prepare plants for the cooler months ahead.
Whether you manage your own garden or rely on professional garden maintenance services, this guide will walk you through what to prune in August, with a focus on trees, shrubs, and hedges, ensuring your outdoor space remains healthy, tidy, and thriving.
Why Prune in August?
Pruning during late summer offers a range of benefits:
- Encourages healthy growth
- Improves airflow and reduces disease
- Maintains shape and size of trees and shrubs
- Prepares plants for winter dormancy
- Keeps your garden looking neat and well-maintained
By tackling pruning tasks now, you reduce the risk of winter damage and help plants conserve energy for the next season.
Trees to Prune in August
While not all trees are suitable for summer pruning, some do benefit from a light trim at this time of year – particularly deciduous varieties that have finished their growth spurt.
Fruit Trees (espalier or trained)
August is ideal for pruning trained apple and pear trees (espaliers, cordons, or fans). This improves shape, removes overcrowded growth, and encourages fruiting spurs for next season.
Garden maintenance tip:
- Cut back side shoots to around 3 leaves from the main stem
- Remove any dead, damaged, or diseased wood
- Avoid pruning stone fruit trees (plums, cherries) now – prune these earlier in summer to avoid silver leaf disease
Birch, Maple, and Walnut (light shaping only)
These trees are known for bleeding sap if pruned in winter or early spring. Light pruning in August – after growth has slowed – minimises stress.
Shrubs to Prune in August
Once shrubs have finished flowering, it’s time to deadhead, shape, and rejuvenate them. Regular pruning prevents overgrowth and encourages stronger flowering next year.
Lavender
After the blooms fade, trim lavender to keep it compact and bushy. Avoid cutting into old, woody stems.
Top tip: Shape the plant into a neat mound, leaving green growth intact.
Wisteria
Wisteria requires twice-yearly pruning. In August, cut back long whippy shoots to 5–6 buds to tidy the plant and prepare it for a winter prune.
Forsythia & Weigela
If not pruned after flowering in early summer, now is the last chance to lightly shape these before autumn.
Hebes, Escallonia, and Spiraea
Lightly prune these summer-flowering shrubs after blooms have faded. This helps maintain shape and encourages a second flush of flowers in some varieties.
Hedges to Prune in August
August is one of the best months for hedge trimming as most bird nesting has finished, and plants are starting to slow their growth. Pruning now helps maintain shape and keeps your boundaries neat.
Formal Hedges (Box, Yew, Privet)
Trim to maintain sharp lines and compact growth. This will keep hedges tidy well into autumn.
Laurel & Photinia
Larger-leaved hedges can be cut back with secateurs for a cleaner look. August is a good time to reduce height or width before growth slows.
Beech & Hornbeam
These deciduous hedges retain brown leaves in winter if pruned in summer, offering year-round privacy.
Professional garden maintenance services like All Seasons can ensure hedges are trimmed evenly and safely, especially those at height.
Pruning Tips for Healthy Growth
- Always use sharp, clean tools to avoid damaging stems and spreading disease
- Cut at an angle just above a bud or branch junction
- Remove dead, diseased, or crossing branches
- Avoid heavy pruning in hot weather – choose cooler mornings or cloudy days
- Feed plants after pruning to support recovery
What NOT to Prune in August
While many plants benefit from an August trim, some are better left alone until later in the year:
- Evergreen trees and conifers: These should be pruned in late winter or spring
- Camellias and Rhododendrons: Pruning now risks cutting off next year’s flower buds
- Spring-flowering shrubs (if not already done): Wait until next year after flowering
Regular Garden Maintenance Makes the Difference
Staying on top of seasonal pruning keeps your garden healthy, manageable, and attractive all year round. It also reduces the need for drastic cutting in future and improves the long-term structure of trees, shrubs, and hedges.
Not sure where to start or simply short on time? Let the professionals help.
Leave It to All Seasons Garden Maintenance
We provide expert garden maintenance services year round – including professional pruning, hedge trimming, lawn care, and more. We know exactly what to prune in August and how to keep your garden looking its best without overcutting or damaging plants.
- Fully insured
- Experienced garden specialists
- One-off or regular maintenance options
Want a garden that looks great all year round?
Get in touch with us today and let us take care of your summer pruning.
