For bestresults re formative growth and flowering the pruning is done in spring but do automatic maintenance pruning when I dead head all thru summer, simply by cutting the stem back to the nearest decent looking leaf node. Makes the plant look a lot better and promotes new flower buds.
Vendée - 20kms from Atlantic coast.
"The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
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