Lilacs set their flower buds the year before they bloom.
When the first really fine spring days arrive, I’m eager to get out into the yard and start cleaning up the twigs and leaves strewn about the lawn, the fallen stems of last year’s perennials, and frost-heaved annuals.My favorite job isn’t at the end of a rake, though.It involves a very sharp pair of红柄修枝剪.
The snipping feels decisive and the pile of woody debris on the ground looks productive and satisfying.Everything from poorly placed tree limbs and winter-damaged roses to gnarly, overgrown shrubs is fair game when I’m wearing my “Runs With Scissors” T-shirt.
Well, not quite everything.Knowing what to cut and when to cut it are part of the art and science of pruning.There’s more to it than simply wielding a对修枝剪的, just as painting a masterpiece is more than owning a brush and palette of watercolors.For most people, the “when and how” of pruning flowering shrubs seems to be their undoing.
Shrubs fall into two general categories and knowing when to prune them lies in knowing to which group they belong.They either bloom on new wood (from the current year) or on old wood (from the previous year).Here’s how it works:
The next step is deciding what to prune and what to leave.The goals in most cases are to establish and preserve the plant’s natural habit and to increase flowering potential.To achieve both goals, I cut stems either back to the ground or to another branch or main stem.Here’s what I remove in order of priority:
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