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Can You Grow Collard Greens in Zone 1a?

Zone 1a 14 frost-free days🌱 Beginner Friendly
Quick Answer: ❌ No — Collard greens struggle in zones with extreme cold — they are heat and mild-frost tolerant but not deeply cold-hardy.
❌ No

Collard Greens won't survive Zone 1a winters outdoors

Collard greens struggle in zones with extreme cold — they are heat and mild-frost tolerant but not deeply cold-hardy.

🌱 What Does Grow in Zone 1a?

These alternatives thrive in your conditions.

🥬 Cabbage ✅ 🌱 Microgreens ✅

🌿 Other Things That Grow in Zone 1a

🥬 Cabbage ✅ 🌱 Microgreens ✅ Beginner
See all plants for Zone 1a →

📍 Where Else Can You Grow Collard Greens?

Zone 5a Zone 5b Zone 6a Zone 6b Zone 7a Zone 7b

🗺️ USDA Plant Hardiness Zones

Zone 1 is shown in this colour on the map below
2023 USDA Plant Hardiness Zone Map — zones 1 to 13

2023 USDA Plant Hardiness Zone Map — public domain. USDA Agricultural Research Service

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

USDA zones run 1a–13b (26 half-zones). Each full zone above covers both the a and b half-zones. Browse all US zones →

Technical climate details for Zone 1a
USDA Zone
1a
Last Frost
early July
First Frost
mid-July
Frost-Free Days
14
Collard Greens Zone Range
5a – 11b
Days to Harvest
60–80 days

Frequently Asked Questions

Collard greens struggle in zones with extreme cold — they are heat and mild-frost tolerant but not deeply cold-hardy.
Zone 1a is in USDA Hardiness Zone 1a with approximately 14 frost-free days per year.
Collard Greens grows in USDA Zones 5a–11b.
Collard Greens is beginner-friendly and one of the easier crops to grow.