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When to Plant Kale in Marshall County, AL

Kale is an exceptionally hardy, nutrient-dense green available in curly, lacinato, and Russian varieties. It tolerates heavy frost and often tastes sweeter after cold exposure.

Marshall County, Alabama is in USDA Zone 7a. The average last spring frost is April 5 and the first fall frost is October 31, giving you a growing season of approximately 209 days.

At an elevation of 159 feet, Marshall County receives approximately 60.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 89ยฐF, providing good warmth for Kale during the growing season. Clay soil retains moisture well for Kale, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Kale root diseases.

Marshall County, AL (Zone 7a) Long season
209 days
Last Spring Frost April 5
209 growing days
First Fall Frost October 31

Marshall County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (98 days to spare)
Start indoors: Feb 20 Transplant: Mar 27 🍅 Harvest: May 22 – Jul 17
Recommended (50%) ✓ Fits season (97 days to spare)
Start indoors: Mar 1 Transplant: Apr 5 🍅 Harvest: May 31 – Jul 26
Safe Start (90%) ✓ Fits season (97 days to spare)
Start indoors: Mar 14 Transplant: Apr 18 🍅 Harvest: Jun 13 – Aug 8

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
1.2″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Kale needs ~1,005 GDD — county provides 3,500 GDD Excellent fit

Kale Planting Timeline โ€” Marshall County, AL

Kale Planting Calendar

Activity When Date Range
Start Indoors March 1 Mar 1 โ€“ Mar 15
Transplant Outdoors April 5 Apr 5 โ€“ Apr 19
Direct Sow March 22 Mar 22 โ€“ Apr 12
Fall Sowing August 22 Aug 22 โ€“ Sep 5
Harvest May 31 May 31 โ€“ Jul 26

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

Month-by-Month Timeline

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

50โ€“70 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 7a

Growing Season

209 days

Growing Tips for Marshall County

Direct sow or transplant in early spring or late summer. Harvest outer leaves first to keep plants productive. Kale overwinters in many climates and can provide greens all year.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries
  • Tomatoes

Level Up Your Garden

๐ŸŒพ Save Your Own Kale Seeds
Life Cycle Biennial
Pollination Cross-Pollinated (insects)
How to Collect Allow 2nd year flower stalks to dry. Harvest pods when tan.
Storage Store airtight; viable 5 years at 35ยฐF, under 50% humidity.

Isolate 1/2 mile from other brassicas (broccoli, cabbage, etc.) โ€” they all cross.

Frequently Asked Questions

When should I plant Kale in Marshall County, AL?

Marshall County is in Zone 7a with an average last frost of April 5. Plan your Kale planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Marshall County, AL?

Marshall County, Alabama is in USDA Hardiness Zone 7a. The average last spring frost is April 5 and first fall frost is October 31.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Marshall County gardeners in Zone 7a 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 Marshall County, AL. Local conditions may vary. Last updated: April 2026.