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When to Plant Romanesco in Ohio County, WV

Ohio County, West Virginia Zone 6a April

April to-do list for Ohio County, West Virginia

Here's what deserves your attention in Ohio County, West Virginia this month. Everything below is tailored to Zone 6a and timed around your local frost dates.

Avg. last frost April 23
Avg. first frost October 29
Soil temp (4") 49°F
Watering Moderate
Pest pressure Low
Daylight 13.1 hrs
  1. Move romanesco into the garden

    Pinch off the lowest leaves on each seedling before you plant — it reduces water loss while the roots catch up.

  2. Direct-sow romanesco

    Thin ruthlessly once seedlings are up. Crowded roots mean smaller crops from every plant.

May prep starts now
  • Starting indoors: romanesco

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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 89°F, 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
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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.

Soil Compatibility in Ohio County

How your county's soil matches Romanesco's growing requirements.

Soil pH

Your soil pH (5.6–6.9) overlaps with Romanesco's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Ohio County is excellent for Romanesco — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.1%). Annual compost additions will help Romanesco.

How to Plant Romanesco

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Romanesco

2
successive plantings in your 189-day season

Sow every 8.6 weeks. Last sowing by Jul 21 to harvest before frost.

For a dedicated fall crop, sow by Aug 20.

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

Monthly Watering Guide for Romanesco

Romanesco needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Romanesco Needs Rainfall You Supplement Action
Jan 3.6" 0" ❄️ Dormant
Feb 3.1" 0" ❄️ Dormant
Mar 3.6" 0" ❄️ Dormant
Apr 4.3" 2.8" 1.5" 💧 Light watering
May 4.3" 3.1" 1.2" 💧 Light watering
Jun 4.3" 3.3" 1" 💧 Light watering
Jul 4.3" 4.8" 0" ✅ Rainfall sufficient
Aug 4.3" 3.9" 0.4" 💧 Light watering
Sep 4.3" 3.2" 1.1" 💧 Light watering
Oct 4.3" 3" 1.3" 💧 Light watering
Nov 3.5" 0" ❄️ Dormant
Dec 3.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Ohio County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Romanesco Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Romanesco needs ~1,466 GDD — county provides 3,165 GDD Excellent fit

Romanesco Planting Timeline — Ohio County, WV

Romanesco Planting Calendar

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

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

75–100 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6a

📆 Growing Season

189 days in Ohio County

Growing Tips for Romanesco in Ohio County

Direct sow Romanesco outdoors after April 23 in Ohio County when soil has warmed and frost danger has passed.

Common pests for Romanesco in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

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

Check more plant combinations with our Companion Planting Checker →

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 — 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.

🌱

Your Ohio County Garden Planner — Free

A 24-page printable planner built for Ohio County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

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.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.