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wexgardener

Information on pruning shrubs

wexgardener
9 years ago

1.My guelder roses tips had to pruned due to disease tips but now that they have been pruned the top forms a darkened formation which spreads downwards from the cut is this normal or is it infection?i know that when cut a branch will a woody formation to seal the wound but how long and deep should this travel down from the point of cutting.

2.my charles de joly lilac shrub has some diseased leaves over kept under control with fungicide should I prune them off since the bush is deciduous should I wait until autumn for them to fall off and if I am to prune them off will the auxillary buds be stimulated to grow new leaves in their place.also should I deadhead the plant now or wait for next year blooming

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