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When to Plant Kai Lan in Winston County, AL

Kai lan (Chinese broccoli) is a brassica grown for its thick, glossy stems and small flower buds. It has a slightly bitter, broccoli-like flavor essential in Cantonese cooking.

Winston County, Alabama is in USDA Zone 7a. The average last spring frost is March 30 and the first fall frost is November 3, giving you a growing season of approximately 218 days.

At an elevation of 281 feet, Winston County receives approximately 51.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94ยฐF, providing good warmth for Kai Lan during the growing season. Clay soil retains moisture well for Kai Lan, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Kai Lan root diseases.

Winston County, AL (Zone 7a) Long season
218 days
Last Spring Frost March 30
218 growing days
First Fall Frost November 3

Winston County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (141 days to spare)
Start indoors: Feb 15 Transplant: Mar 22 🍅 Harvest: May 10 – Jun 7
Recommended (50%) ✓ Fits season (141 days to spare)
Start indoors: Feb 23 Transplant: Mar 30 🍅 Harvest: May 18 – Jun 15
Safe Start (90%) ✓ Fits season (141 days to spare)
Start indoors: Mar 15 Transplant: Apr 19 🍅 Harvest: Jun 7 – Jul 5

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
Kai Lan needs ~1,076 GDD — county provides 4,469 GDD Excellent fit

Kai Lan Planting Timeline โ€” Winston County, AL

Kai Lan Planting Calendar

Activity When Date Range
Start Indoors February 23 Feb 23 โ€“ Mar 9
Transplant Outdoors March 30 Mar 30 โ€“ Apr 13
Direct Sow March 16 Mar 16 โ€“ Apr 6
Fall Sowing August 25 Aug 25 โ€“ Sep 8
Harvest May 18 May 18 โ€“ Jun 15

Plant 0.5" deep ยท 6" apart ยท Rows 12" apart

Month-by-Month Timeline

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

45โ€“60 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 7a

Growing Season

218 days

Growing Tips for Winston County

Direct sow in spring or fall. Harvest when flower buds first appear but before they open. Cut stems at the base to encourage side shoots. Prefers cool weather.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Level Up Your Garden

Frequently Asked Questions

When should I plant Kai Lan in Winston County, AL?

Winston County is in Zone 7a with an average last frost of March 30. Plan your Kai Lan planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Winston County, AL?

Winston County, Alabama is in USDA Hardiness Zone 7a. The average last spring frost is March 30 and first fall frost is November 3.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Winston 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 Winston County, AL. Local conditions may vary. Last updated: April 2026.