West Virginia · zones 6a–7a
When to plant sweet potatoes in West Virginia.
Sow or transplant between Jun 4 to Jun 15 in a typical year, keyed to West Virginia's median last frost around Apr 28. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Sweet Potatoes dates for a typical West Virginia season.
1 · Start indoors
Apr 23 to May 4
About 6 weeks before set-out. Warm spot, real light.
2 · Set out
Jun 4 to Jun 15
Keyed to the ~Apr 28 last frost. Sow 3" deep, 14" apart.
Harvest
~110 days later
~2.5 lb per plant over ~1 weeks.
West Virginia spans more than one climate: Zone 6 is the most common zone, but the state runs 6a to 7a. That's why the planner works from your ZIP code's frost dates, not your zone: mountain and coastal gardens in the same state can be three weeks apart.
In West Virginia: watch for
The pests that find sweet potatoes here.
A middle-length season, about 172 frost-free days, means sweet potato overlaps wireworms & white grubs for a stretch each summer. Check plants every week or two and treat early.
Wireworms & white grubs
Shallow holes and grooves chewed into the roots, found only at digging time.
Organic fix: Avoid planting into ground that was in sod last year; rotate away from grassy beds.
Clusters on the tender growing tips of new vines.
Organic fix: Hose them off in the morning, or use insecticidal soap.
Black rot
Dry, firm dark patches on the roots, usually found at harvest or in storage, with a sweet fruity smell.
Organic fix: Start from clean slips cut well above the soil line, never save roots from a bad crop, and rotate 3 years.
Your season math: West Virginia gives sweet potatoes about 172 frost-free days, and it needs roughly 110 days to a first harvest. It's a one-planting crop, so time that single sowing well.
Planting sweet potatoes in West Virginia: questions
When should I plant sweet potatoes in West Virginia?+
In a typical West Virginia year, sow sweet potatoes or set out transplants between Jun 4 to Jun 15, keyed to the state's median last frost around Apr 28. Your exact dates shift with your ZIP code and microclimate.
When do I start sweet potatoes seeds indoors in West Virginia?+
Start seeds inside about 6 weeks before set-out: roughly Apr 23 to May 4 for a typical West Virginia season.
What USDA zone is West Virginia?+
West Virginia spans zones 6a–7a, mostly zone 6. But frost dates, not zones, set planting time. The free planner uses your ZIP code's actual frost dates.
How many sweet potatoes plants do I need?+
Depends who you're feeding. The crop page has exact counts per household size, or the free planner does the math for your family in about 60 seconds.