When to Plant Valerian in Zone 4
In USDA zone 4, start seeds indoors around March 20, transplant or plant outdoors May 15 to October 12, and expect your first harvest around October 12.
Valerian planting calendar for USDA Zone 4
Start seeds indoors
Mar 20
Transplant outdoors
May 15
Projected first harvest
Oct 12
Valerian is ready to harvest in about 150 days. Dates use USDA zone 4a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 4 means for valerian
Average last spring frost
May 15
Average first fall frost
September 20
Those two dates are what set the schedule above. Zone 4 gives you roughly 128 frost-free days, and valerian need about 150 days to mature.
Varieties to grow
1 variety of valerian in the HomeSown library. Tap any for its full grow guide.
Common problems with valerian
What to watch for, with identification and treatment for each
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