When to Plant Kohlrabi in Zone 1A
USDA Zone
1A
Cities Covered
5
Avg Last Frost
Monday, June 15, 2026
Plant Type
Indoor Start
📅 Planting Calendar for Zone 1A
Start Seeds Indoors Monday, May 18, 2026
Transplant Outdoors Monday, June 1, 2026
Pro Tip: Start Kohlrabi seeds indoors 4 weeks before your last frost date for best results.
🌿 Plant Details
Scientific Name Brassica oleracea var. gongylodes
Days to Maturity 55 days
Sun Requirements Full Sun
Cities in Zone 1A
Other Plants for Zone 1A
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 Collard Green Common Bean Cucumber Eggplant Endive Fennel Garlic Grape Tomato Green Bean Habanero Pepper Head Lettuce Heirloom Tomato Honeydew Melon Jalapeño Pepper Kale 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
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Growing Kohlrabi in USDA Zone 1A
Kohlrabi (Brassica oleracea var. gongylodes) grows well in USDA Hardiness Zone 1A. This zone includes cities like Allakaket, Beaver, Circle and 2 more.
The average last frost date for Zone 1A is around Monday, June 15, 2026. For best results, start your Kohlrabi seeds indoors around Monday, May 18, 2026, then transplant outdoors around Monday, June 1, 2026.
Expect to harvest your Kohlrabi approximately 55 days after planting.