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When to Plant Romanesco in Pendleton County, KY

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

Pendleton County, Kentucky is in USDA Zone 6b. The average last spring frost is April 16 and the first fall frost is October 25, giving you a growing season of approximately 192 days.

At an elevation of 3,475 feet, Pendleton County receives approximately 47.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85ยฐF, providing good warmth for Romanesco during the growing season.

Pendleton County, KY (Zone 6b) Moderate season
192 days
Last Spring Frost April 16
192 growing days
First Fall Frost October 25

Pendleton County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (74 days to spare)
Start indoors: Mar 6 Transplant: Apr 10 🍅 Harvest: Jun 26 – Aug 7
Recommended (50%) ✓ Fits season (73 days to spare)
Start indoors: Mar 12 Transplant: Apr 16 🍅 Harvest: Jul 2 – Aug 13
Safe Start (90%) ✓ Fits season (66 days to spare)
Start indoors: Apr 1 Transplant: May 6 🍅 Harvest: Jul 22 – Sep 2

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
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Romanesco needs ~1,203 GDD — county provides 2,640 GDD Excellent fit

Romanesco Planting Timeline โ€” Pendleton County, KY

Romanesco Planting Calendar

Activity When Date Range
Start Indoors March 12 Mar 12 โ€“ Mar 26
Transplant Outdoors April 16 Apr 16 โ€“ Apr 30
Direct Sow April 2 Apr 2 โ€“ Apr 23
Fall Sowing August 16 Aug 16 โ€“ Aug 30
Harvest July 2 Jul 2 โ€“ Aug 13

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Start Indoors
April Transplant Outdoors Direct Sow
May โ€”
June โ€”
July Harvest
August Fall Sowing Harvest
September โ€”
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 6b

Growing Season

192 days

Growing Tips for Pendleton 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

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Frequently Asked Questions

When should I plant Romanesco in Pendleton County, KY?

Pendleton County is in Zone 6b with an average last frost of April 16. Plan your Romanesco planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Pendleton County, KY?

Pendleton County, Kentucky is in USDA Hardiness Zone 6b. The average last spring frost is April 16 and first fall frost is October 25.

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Plan Your Garden with Confidence

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

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