Watering and dead-heading are two of the most important jobs around the garden this month, to keep plants healthy and vibrant.
On hot days damping down the greenhouse floor helps reduce the temperature and increases humidity, encouraging plant growth and mitigating against red spider mite that prefers it hot & dry and is otherwise very difficult to control.
Divide clumps of bearded iris,
if not done immediately after flowering last month.
Dividing every 3 – 5 years really does improve flowering.
Pruning of plum, cherry, apricot & peach trees should be carried out as soon as the fruit has been harvested, in dry weather to minimise the risk of silver leaf infection.
Feed roses after their first flush of flowers.
Continue to dead-head repeat-flowering roses to keep them flowering strongly.
For varieties that flower only once, the spent blooms can be left to develop into hips.
Cut back hardy geraniums and delphiniums after the first flush of flowers to encourage a second flowering later in the season. Feed and mulch them after cutting them back.
In dry weather, powdery mildew can threaten susceptible plants, e.g. clematis, centaurea, monarda, scabious, knautia and honeysuckle; however, regular watering can help ward it off.
Plants with a carpet-like growth habit, such as some alpines, can become patchy, with central areas dying off.
These patches can be in-filled with gritty compost, to encourage re-growth.
Wildlife in the garden
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