Pest and disease watch
Inspect lilies for the scarlet lily beetle whose larvae can strip plants in days.
Vine weevils can also be a problem at this time of year.
Small holes and tears in new foliage of ornamentals such as Caryopteris, Fuchsia and Dahlia are most likely caused by capsid bug damage.
Watch out for aphids (greeenfly and blackfly) on stems and leaves of young shoots.
Sudden collapse of apparently healthy clematis, especially the large-flowered cultivars, could indicate clematis wilt.
In dry weather powdery mildew can play havoc with plants such as clematis, roses and Lonicera.
Look out for and treat black spot on roses and scab on Pyracantha.