Catnip is a relatively easy-to-grow perennial in the mint family thriving into zone 4 on the USDA Zone Hardiness map.
Below are the standards for growing Catnip developed and recommended by CGA:
Nepata cataria
Catnip may be started from Seed or.....more..
Or may be divided out of existing plants more..
- Sandy loam is preferred; pH 5.8 - 7.5
- Full sun preferred or partial shade.
Organic fertilizer: well-rotted horse or cow manure. more..
- Or 10-10-10 commercial fertilizer may be used; spread and worked in before planting, 1# per 25' row.
- Spacing 16" apart in rows; rows 24" apart.
Cultivate to no weeds.. more..
- Do not harvest complete plant -- leave a few stems with flowers to self-seed. Plants will readily self-seed.
- Water requirement 1" per week.
*   Pinch tops in 2nd and 3rd growing months to promote bushiness and more flower tops.
- Relatively insect-pest free
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