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When to Plant Savoy Cabbage in Allen County, KY

Allen County, Kentucky Zone 7a May

Your May game plan for Allen County, Kentucky

Welcome to May in Zone 7a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost April 9
Avg. first frost October 29
Soil temp (4") 54°F
Watering Moderate
Pest pressure Low
Daylight 14 hrs
  1. Get savoy cabbage seeds going inside

    Give them 6–8 weeks indoors before the last frost and you'll transplant into warm soil with seedlings that are already leaping.

Coming up in June — start thinking about
  • First harvests: savoy cabbage

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Savoy cabbage has crinkled, deeply veined leaves that form looser heads than regular cabbage. It has a milder, sweeter flavor and is more cold-tolerant.

Allen County, Kentucky is in USDA Zone 7a. The average last spring frost is April 9 and the first fall frost is October 29, giving you a growing season of approximately 203 days.

At an elevation of 3,915 feet, Allen County receives approximately 42.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Savoy Cabbage during the growing season.

Allen County, KY (Zone 7a) Long season
203 days
Last Spring Frost April 9
203 growing days
First Fall Frost October 29
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Allen County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (74 days to spare)
Start indoors: Mar 1 Transplant: Apr 5 🍅 Harvest: Jun 14 – Aug 9
Recommended (50%) ✓ Fits season (77 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Jun 18 – Aug 13
Safe Start (90%) ✓ Fits season (75 days to spare)
Start indoors: Mar 20 Transplant: Apr 24 🍅 Harvest: Jul 3 – Aug 28

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 Allen County

How your county's soil matches Savoy Cabbage's growing requirements.

Soil pH

Your soil pH (5.5–6.8) overlaps with Savoy Cabbage's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Savoy Cabbage.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Savoy Cabbage.

How to Plant Savoy Cabbage

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 Savoy Cabbage

3
successive plantings in your 203-day season

Sow every 8 weeks. Last sowing by Jul 11 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
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Savoy Cabbage

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

Month Savoy Cabbage Needs Rainfall You Supplement Action
Jan 3.7" 0" ❄️ Dormant
Feb 3.1" 0" ❄️ Dormant
Mar 4" 0" ❄️ Dormant
Apr 4.3" 3.8" 0.5" 💧 Light watering
May 4.3" 3.7" 0.6" 💧 Light watering
Jun 4.3" 4" 0.3" 💧 Light watering
Jul 4.3" 4.8" 0" ✅ Rainfall sufficient
Aug 4.3" 3.7" 0.6" 💧 Light watering
Sep 4.3" 3" 1.3" 💧 Light watering
Oct 4.3" 2.6" 1.7" 💧 Light watering
Nov 2.8" 0" ❄️ Dormant
Dec 3.3" 0" ❄️ Dormant

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

Savoy Cabbage 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.

Savoy Cabbage needs ~1,440 GDD — county provides 3,248 GDD Excellent fit

Savoy Cabbage Planting Timeline — Allen County, KY

Savoy Cabbage Planting Calendar

Activity When Date Range
Start Indoors March 5 Mar 5 – Mar 19
Transplant Outdoors April 9 Apr 9 – Apr 23
Direct Sow March 26 Mar 26 – Apr 16
Harvest June 18 Jun 18 – Aug 13
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 Direct Sow
April Transplant Outdoors Direct Sow
May
June Harvest
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 · Natural rainfall sufficient

📅 Days to Maturity

70–110 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

203 days in Allen County

Growing Tips for Savoy Cabbage in Allen County

Direct sow Savoy Cabbage outdoors after April 09 in Allen County when soil has warmed and frost danger has passed.

Common pests for Savoy Cabbage 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 4-6 weeks before last frost. Savoy cabbage is more forgiving of temperature fluctuations than smooth-leaved types. Excellent for stuffed cabbage rolls.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Savoy Cabbage in Allen County, KY?

Allen County is in Zone 7a with an average last frost of April 9. Plan your Savoy Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Allen County, KY?

Allen County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 9 and first fall frost is October 29.

🌱

Your Allen County Garden Planner — Free

A 24-page printable planner built for Allen County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Allen County, KY. Local conditions may vary. Last updated: May 2026.

Sources & credits

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