Blog

When to Plant Romanesco in Ohio County, WV

Romanesco is a stunning brassica with a lime-green head composed of fractal-patterned spiraling florets. It has a nuttier, milder flavor than cauliflower.

Ohio County, West Virginia is in USDA Zone 6a. The average last spring frost is April 23 and the first fall frost is October 29, giving you a growing season of approximately 189 days.

At an elevation of 1,350 feet, Ohio County receives approximately 41.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89ยฐF, providing good warmth for Romanesco during the growing season.

Ohio County, WV (Zone 6a) Moderate season
189 days
Last Spring Frost April 23
189 growing days
First Fall Frost October 29

Ohio County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (70 days to spare)
Start indoors: Mar 9 Transplant: Apr 13 🍅 Harvest: Jun 29 – Aug 10
Recommended (50%) ✓ Fits season (70 days to spare)
Start indoors: Mar 19 Transplant: Apr 23 🍅 Harvest: Jul 9 – Aug 20
Safe Start (90%) ✓ Fits season (66 days to spare)
Start indoors: Apr 2 Transplant: May 7 🍅 Harvest: Jul 23 – Sep 3

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 123 gal / 100 sq ft
Romanesco needs ~1,466 GDD — county provides 3,165 GDD Excellent fit

Romanesco Planting Timeline โ€” Ohio County, WV

Romanesco Planting Calendar

Activity When Date Range
Start Indoors March 19 Mar 19 โ€“ Apr 2
Transplant Outdoors April 23 Apr 23 โ€“ May 7
Direct Sow April 9 Apr 9 โ€“ Apr 30
Fall Sowing August 20 Aug 20 โ€“ Sep 3
Harvest July 9 Jul 9 โ€“ Aug 20

Plant 1" deep ยท 15" apart ยท Rows 24" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Start Indoors
April Start Indoors Transplant Outdoors Direct Sow
May Transplant Outdoors
June โ€”
July Harvest
August Fall Sowing Harvest
September Fall Sowing
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

75โ€“100 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 6a

Growing Season

189 days

Growing Tips for Ohio County

Start seeds indoors 5-7 weeks before transplanting. Provide consistent moisture and avoid temperature stress. Harvest when head is fully formed but before florets begin to separate.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Strawberries

Level Up Your Garden

Frequently Asked Questions

When should I plant Romanesco in Ohio County, WV?

Ohio County is in Zone 6a with an average last frost of April 23. Plan your Romanesco planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Ohio County, WV?

Ohio County, West Virginia is in USDA Hardiness Zone 6a. The average last spring frost is April 23 and first fall frost is October 29.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Ohio County gardeners in Zone 6a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Ohio County, WV. Local conditions may vary. Last updated: April 2026.