When to Plant Burdock in Zone 9
In USDA zone 9a, plant outdoors February 15 to June 15, and expect your first harvest around June 15. (9a shown here — see 9a and 9b dates separately below.)
Burdock planting calendar for USDA Zone 9a
Average last spring frost
March 1
Average first fall frost
December 1
Direct sow
Feb 15
Projected first harvest
Jun 15
Burdock is ready to harvest in about 120 days, needing roughly 275 frost-free days in zone 9a.
Burdock planting calendar for USDA Zone 9b
Average last spring frost
February 15
Average first fall frost
December 15
Direct sow
Feb 1
Projected first harvest
Jun 1
Burdock is ready to harvest in about 120 days, needing roughly 303 frost-free days in zone 9b.
Not sure whether you're in 9a or 9b? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
1 variety of burdock in the HomeSown library. Tap any for its full grow guide.
Common problems with burdock
What to watch for, with identification and treatment for each
🌱 Grow burdock with a calendar built for your exact yard
HomeSown turns your ZIP code into a personalized planting calendar, watering reminders, and pest help. Free to start.
Start your free garden →