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When to Plant Cabbage in Delaware

🌱

Start Seeds Indoors

Sunday, February 22, 2026

Transplant outdoors: Sunday, April 5, 2026

State

Delaware

USDA Zones

7a, 7b, 8a

Avg Last Frost

Sunday, April 5, 2026

Cities Covered

57

Delaware Planting Schedule by Zone

Delaware spans 3 zones — find yours below for the most accurate dates.

Zone Last Frost Start Indoors Transplant
7a Friday, April 10, 2026 Friday, February 27, 2026 Friday, April 10, 2026
7b Sunday, April 5, 2026 Sunday, February 22, 2026 Sunday, April 5, 2026
8a Friday, March 20, 2026 Friday, February 6, 2026 Friday, March 20, 2026

Dates based on average last frost. Check your local forecast before planting.

🌿 About Cabbage

Scientific Name Brassica oleracea var. capitata
Days to Maturity 70 days
Plant Type Head
Sun Full Sun to Partial Shade
Water Regular (1-1.5 inches/week)
Spacing 18" apart

🤝 Companion Plants for Cabbage

Good Companions

CeleryDillOnionPotatoChamomile

Avoid Planting Near

StrawberryTomatoGrape
See the full companion planting guide for Cabbage →

Growing Cabbage in Delaware: Complete Guide

Cabbage (Brassica oleracea var. capitata) is a warm-season crop that needs a head start indoors before Delaware's last frost. Most Delaware gardeners begin seeds indoors around Sunday, February 22, 2026 and move transplants outside around Sunday, April 5, 2026, after the risk of frost has passed.

Because Delaware stretches across 3 USDA hardiness zones (7a, 7b, 8a), planting windows can shift by as much as two to four weeks from one end of the state to the other. Gardeners in the warmer southern zones can start earlier, while those in cooler northern zones should wait until the zone table above shows their last frost has passed.

With 70 days to maturity, Cabbage needs the indoor head start that Delaware's growing season requires. Starting indoors ensures you have strong transplants ready the moment outdoor conditions are right.

Cabbage requires full sun to partial shade and regular (1-1.5 inches/week) moisture. Most of Delaware receives adequate sunlight during the growing season, though gardeners in humid eastern regions should watch for fungal issues and ensure good air circulation.

For the most precise planting dates tailored to your exact location, enter your ZIP code on our planting calendar or use the zone table above to find the schedule for your area of Delaware.

Frequently Asked Questions

When should I plant Cabbage in Delaware?

In Delaware, start Cabbage seeds indoors around Sunday, February 22, 2026 and transplant outdoors around Sunday, April 5, 2026 after your last frost. Delaware spans zones 7a–8a, so dates shift by 1–4 weeks depending on where you live.

What is the last frost date in Delaware?

Delaware spans 3 USDA zones (7a, 7b, 8a), so last frost dates vary by region. Hockessin, Saint Georges, Yorklyn (7a) sees frost until around Friday, April 10, 2026, while Bethany Beach, Fenwick Island, Ocean View (8a) is frost-free much earlier.

How long does Cabbage take to grow in Delaware?

Cabbage takes about 70 days from transplant (or direct sow) to harvest. Starting seeds indoors in Delaware gives you a head start so plants are ready to go out after the last frost.

What USDA zones does Delaware cover for Cabbage?

Delaware includes zones 7a, 7b, 8a. Cabbage grows well across all of these zones with adjusted timing — use the zone table above to find the right dates for your part of the state.

Find Precise Dates for Your City

Select a city for exact planting dates based on local frost records.

Other Plants for Delaware

When to Plant Cabbage in Other States