When to Plant Horseradish in Delaware
Delaware spans USDA hardiness 7a to 8a (zones 7a to 8a on this page). Plant horseradish by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.
Jump to: Zone 7a · Zone 7b · Zone 8a
Horseradish planting calendar for Delaware, Zone 7a
Average last spring frost
April 15
Average first fall frost
October 20
Direct sow
Apr 15
Projected first harvest
Oct 12
Horseradish is ready to harvest in about 180 days. Full zone 7 guide (both 7a and 7b) →
Horseradish planting calendar for Delaware, Zone 7b
Average last spring frost
April 10
Average first fall frost
October 30
Direct sow
Apr 10
Projected first harvest
Oct 7
Horseradish is ready to harvest in about 180 days. Full zone 7 guide (both 7a and 7b) →
Horseradish planting calendar for Delaware, Zone 8a
Average last spring frost
April 1
Average first fall frost
November 10
Direct sow
Apr 1
Projected first harvest
Sep 28
Horseradish is ready to harvest in about 180 days. Full zone 8 guide (both 8a and 8b) →
Not sure which half-zone you're in? Set your ZIP in HomeSown for dates tuned to your exact location.
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
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