Skip to content

Can You Grow Collard Greens in Canadian Zone 3?

Zone 3 127 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 Canadian Zone 3 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 Canadian Zone 3?

These alternatives thrive in your conditions.

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

🌿 Other Things That Grow in Canadian Zone 3

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

📍 Where Else Can You Grow Collard Greens?

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

🗺️ Canadian Plant Hardiness Zones

Zone 3 is shown in this colour on the map below
Canadian Plant Hardiness Zone Map — zones 0 to 9

Canadian Plant Hardiness Zone Map (2014) — Agriculture & Agri-Food Canada / Canadian Forest Service

0 1 2 3 4 5 6 7 8 9

Canadian zones run 0–9 (coldest to warmest) — a separate system from USDA zones. Browse all Canadian zones →

Technical climate details for Canadian Zone 3
USDA Zone
3
Last Frost
mid-May
First Frost
late September
Frost-Free Days
127
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.
Canadian Zone 3 is in USDA Hardiness Zone 3 with approximately 127 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.