Mullica Hill, NJ
|i just want to know how much to cut back my yarrow plants and my lavender plants. both beds of plants are 2 years old.
|Answer from NGA
April 24, 2001
|Yarrows need only minimal trimming to remove old bloom stems. The green or gray foliage should be left as is. Lavender should not be trimmed back until late spring when the new growth has started. At that time, trim away any dead winter damage. Prune again lightly to shape after it blooms or when harvesting blooms. Never cut into the hardened older branches.
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