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Can You Grow Collard Greens in Zone 3b?

Zone 3b 153 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 3b 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 3b?

These alternatives thrive in your conditions.

🥬 Arugula ✅ 🌿 Asparagus ✅ ❤️ Beets ✅ 🥦 Broccoli ✅ 🫛 Brussels Sprouts ✅

🌿 Other Things That Grow in Zone 3b

🍎 Apple ✅ 🥬 Arugula ✅ Beginner 🌿 Asparagus ✅ ❤️ Beets ✅ Beginner 🫐 Blueberry ✅ 💙 Borage ✅ Beginner 🥦 Broccoli ✅ 🫛 Brussels Sprouts ✅
See all plants for Zone 3b →

📍 Where Else Can You Grow Collard Greens?

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

🗺️ USDA Plant Hardiness Zones

Zone 3 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 3b
USDA Zone
3b
Last Frost
early May
First Frost
early October
Frost-Free Days
153
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 3b is in USDA Hardiness Zone 3b with approximately 153 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.