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How to Grow Collard Green

Collard Green (Brassica oleracea var. viridis)

Ready to grow Collard Green?

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🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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Find Your Collard Green Planting Dates

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🌿 Plant Overview

Scientific Name Brassica oleracea var. viridis
Category vegetable
Type Leaf
Days to Maturity 60 days
Starting Method Start Indoors

☀️ Growing Requirements

☀️

Sun

Full Sun (6+ hours)

💧

Water

Regular (1-1.5 inches/week)

↔️

Spacing

18" apart

🌱

Depth

0.5" deep

📏

Height

24-36"

🌱

Germination

4-7 days

Ready to Grow Collard Green?

Find quality seeds from trusted suppliers.

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🤝 Good Companions

BeetCeleryOnionDill

⚠️ Avoid Planting Near

TomatoStrawberryPepper

Collard Green Planting Calendar by Zone

Zone 1a Zone 1b Zone 2a Zone 2b Zone 3a Zone 3b Zone 4a Zone 4b Zone 5a Zone 5b Zone 6a Zone 6b Zone 7a Zone 7b Zone 8a Zone 8b Zone 9a Zone 9b Zone 10a Zone 10b Zone 11a Zone 11b Zone 12a Zone 12b Zone 13a

Collard Green Planting Calendar by State

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Frequently Asked Questions

When should I plant Collard Green? +

Start Collard Green seeds indoors 6 weeks before your last frost date, then transplant outdoors 0 weeks after the last frost. Use the search on this page to find exact dates for your ZIP code or city.

How long does Collard Green take to grow? +

Collard Green typically matures in about 60 days from planting. Exact timing varies by variety, soil conditions, and local climate.

Should I start Collard Green indoors or direct sow? +

Collard Green should be started indoors 6 weeks before the last frost date. This gives seedlings time to establish before being transplanted outside after frost danger has passed.

How much sun does Collard Green need? +

Collard Green requires full sun (6+ hours) to thrive.

How far apart should I plant Collard Green? +

Space Collard Green plants 18 inches apart to allow adequate airflow and root development.

How much water does Collard Green need? +

Collard Green has regular (1-1.5 inches/week) water needs. Consistent moisture is important especially during germination and early growth.

About Collard Green

Heat and cold tolerant leafy green, a Southern cooking staple. Flavor improves after light frost. Harvest lower leaves for continuous production. Rich in vitamins K and C.

Expect your Collard Green to be ready for harvest in approximately 60 days from planting.

Use the search above or browse by zone or state to find the perfect planting dates for your location.