When to Plant Rosemary 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, April 6, 2026
Transplant Outdoors Monday, June 29, 2026
Pro Tip: Start Rosemary seeds indoors 10 weeks before your last frost date for best results.
🌿 Plant Details
Scientific Name Salvia rosmarinus
Days to Maturity 120 days
Sun Requirements Full Sun (6+ hours)
Plant Spacing 24" apart
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 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 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
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Growing Rosemary in USDA Zone 1A
Rosemary (Salvia rosmarinus) 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 Rosemary seeds indoors around Monday, April 6, 2026, then transplant outdoors around Monday, June 29, 2026.
Expect to harvest your Rosemary approximately 120 days after planting.