Hydrangea scale is a “sap sucking” insect, according to the Royal Horticultural Society (RHS). It is found on hydrangeas but can also feed on other woody plants including acer and prunus. The RHS said ...
Some gardeners prefer the spiky Hydrangea paniculata; others opt for the smoother mop-head varieties such as Hydrangea macrophylla. Others, often those with yellow as opposed to green fingers, do not ...
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