When to Plant Horseradish in Zone 4
In USDA zone 4, plant outdoors May 15 to November 11, and expect your first harvest around November 11.
Horseradish planting calendar for USDA Zone 4
Direct sow
May 15
Projected first harvest
Nov 11
Horseradish is ready to harvest in about 180 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 horseradish
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 horseradish need about 180 days to mature.
Varieties to grow
1 variety of horseradish in the HomeSown library. Tap any for its full grow guide.
Common problems with horseradish
What to watch for, with identification and treatment for each
🌱 Grow horseradish 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 →