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10 Perennial Herbs That Grow In Very Cold Climates + 8 Flowers That Thrive In The Cold
Replant some of the roots to ensure a continuous supply year after year. Catnip is a hardy perennial herb that thrives in USDA Hardiness Zones 3-9. It's well-suited to cold climates, tolerating ...
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Why You Should Grow Catnip Even If You Don't Have Cats
It is easy to successfully grow a catnip plant as a perennial in USDA hardiness in zones 3 through 9. I have grown catnip in the ground, but to ensure it doesn't accidentally get chopped down by ...