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I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
If it's old, overgrown, or unshapely, giving it a rejuvenating pruning will help restore it to a healthier and more attractive state. This type of pruning goes beyond a lighter annual pruning to severely cut the bush or tree back, allowing for new growth to occur.  Do your assessment in early spring, before the lilac has come back to life. This is the best time of year for a deeper pruning. Keep in mind that doing a rejuvenating pruning will mean losing the maturing buds that would otherwise tur