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When to Plant Collard Green in Zone 3A

USDA Zone

3A

Cities Covered

25

Avg Last Frost

Monday, May 25, 2026

Plant Type

Indoor Start

📅 Planting Calendar for Zone 3A

Start Seeds Indoors Monday, March 30, 2026
Transplant Outdoors Monday, June 8, 2026

Pro Tip: Start Collard Green seeds indoors 8 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Brassica oleracea
Days to Maturity 168 days
Sun Requirements Full Sun

Cities in Zone 3A

Embarrass, Minnesota Soudan, Minnesota Tower, Minnesota Loman, Minnesota Ranier, Minnesota Swift, Minnesota Oak Island, Minnesota Anchorage, Alaska Aniak, Alaska Crooked Creek, Alaska Grayling, Alaska Holy Cross, Alaska Red Devil, Alaska Shageluk, Alaska Fairbanks, Alaska Deering, Alaska Delta Junction, Alaska Fort Yukon, Alaska Kaktovik, Alaska Kivalina, Alaska Point Hope, Alaska Ruby, Alaska Shishmaref, Alaska Teller, Alaska Brevig Mission, Alaska

Other Plants for Zone 3A

Blackberry Blueberry Raspberry Strawberry Basil Chamomile Chives Cilantro Dill Lavender Lemon Balm Marjoram Mint Oregano Parsley Rosemary Sage Tarragon Thyme Acorn Squash Artichoke Arugula Asparagus Beefsteak Tomato Beet Bell Pepper Bok Choy Broccoli Brussel Sprout Butternut Squash Cabbage Cantaloupe Carrot Cauliflower Cayenne Pepper Celery Cherry Tomato Chili Pepper Common Bean Cucumber Eggplant Endive Fennel Garlic Grape Tomato Green Bean Habanero Pepper Head Lettuce Heirloom Tomato Honeydew Melon Jalapeño Pepper Kale Kohlrabi Leaf Lettuce Leek Lima Bean Mustard Okra Onion Parsnip Pea Poblano Pepper Pole Pea Potato Pumpkin Radicchio Radish Rhubarb Roma Tomato Rutabaga Serrano Pepper Shallot Snap Pea Snow Pea Spaghetti Squash Spinach Squash Sweet Corn Sweet Potato Swiss Chard Tomato Turnip Watermelon Zucchini

Browse Other Zones

Zone 1a Zone 1b Zone 2a Zone 2b 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

Growing Collard Green in USDA Zone 3A

Collard Green (Brassica oleracea) grows well in USDA Hardiness Zone 3A. This zone includes cities like Embarrass, Soudan, Tower and 22 more.

The average last frost date for Zone 3A is around Monday, May 25, 2026. For best results, start your Collard Green seeds indoors around Monday, March 30, 2026, then transplant outdoors around Monday, June 8, 2026.

Expect to harvest your Collard Green approximately 168 days after planting.