The secateurs is still the gardener’s most important tool during this month.
Perennials such as Penstemon, Lupins, Delphiniums, Veronicas and Verbascums can have spent flowers stem removed now.
Cut back to just above a node or leaf joint to promote another flowering shoot.
Wisteria too, will benefit from a light haircut at the moment.
With all the leaf growth on them the task can look a bit daunting, if you don’t know what to do.
However when you get stuck into the task its really quite straightforward, if a bit messy.
Identify the main stems travelling along the wall or fence, and cut back the side shoots growing out from it.
Reduce these shoots to about 20 — 30cm. Feed now with a high potassium feed such as sulphate of potash.
This may promote a second flush of flowers and will certainly help flowering for next year.
Roses too, will benefit from dead heading and a light summer pruning.
Again, cut to a node and use the opportunity to remove any signs of black spot or other infections, feed now with a good rose food to keep the display going until well into the autumn
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