Help us achieve our goals:
make a donation »
Join the RHS today and
support our charity
Free personalised gardening advice
RHS members get reduced ticket prices
RHS members get free access to RHS Gardens
Reduced prices on RHS Garden courses and workshops
020 3176 5800
Mon – Fri | 9am – 5pm
Make a donation
Join the RHS today and support our charity
I have forgotten my password
Keep me signed in
Register for free to receive our newsletters, add comments to blogs/articles and to save content.
See what events are on near you and browse your bookmarked pages.
Prune June-flowering shrubs such as Philadelphus and Weigela after flowering. Prune deciduous magnolias if necessary.
Fast-growing hedges such as Leyland cypress should be clipped as necessary throughout the growing season.
Tie-in climbers and ramblers as they grow.
Take semi-ripe cuttings of shrubs such as Choisya , Hydrangea and Philadelphus. Root them in pots of gritty co mpost in a cold frame or even with a plastic bag tied over them.
Clematis can be propagated by taking internodal cuttings (i.e. taking stem sections above and below a leaf, rather than cutting the stem immediately below a leaf joint).
Air-layering is another method of propagation that can be used for some climbers, such as Akebia , and some shrubs, such as Magnolia.
Look out for tall, flowering stalks on established bamboos and remove them promptly. Flowering can weaken the plants, as well as being unsightly.
Ensure newly planted trees and shrubs do not dry out. They often need much more water than people imagine
Remove rose suckers and tree suckers.
Brown patches on conifers may indicate an earlier infestation by the cypress aphids. Telltale signs include black sooty mould along the stems and shed skin cases. Spraying earlier in the summer may have helped, but once damage is done, conifers can take a long time to recover. Where hedges are affected prune out brown shoots and tie in neighbouring branches to help fill the gaps.
Thickened and curled margins on bay trees (Laurus nobilis) are a sign of damage by the bay sucker. Scale insects can also affect bays at this time of year.
Neat circular areas removed from the edges of rose and other leaves are telltale signs of leaf-cutter bees at work. These fascinating creatures are best tolerated since damage is rarely severe.
Yellow and distorted leaves on cherry laurel (Prunus laurocerasus) indicate a powdery mildew problem.
You may notice damage to leaves of Viburnum by viburnum beetles. The damage is not usually bad enough to warrant treatment.
the RHS today and get 12 months for the price of 9
trees and shrubs
Things to do in the garden this month
Trees and shrubs
Greenhouse, conservatory and houseplants
We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.
Join the RHS today and get 12 months for the price of 9