When to Plant Petunia in Zone 2B

USDA Zone

Cities Covered

Avg Last Frost

Thursday, May 28, 2026

Plant Type

Indoor Start

📅 Planting Calendar for Zone 2B

Start Seeds Indoors Thursday, March 19, 2026

Transplant Outdoors Thursday, June 11, 2026

Pro Tip: Start Petunia seeds indoors 10 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Petunia × hybrida

Days to Maturity 75 days

Sun Requirements Full Sun (6-8 hours)

Plant Spacing 12" apart

Cities in Zone 2B

Gakona, Alaska Glennallen, Alaska Mc Grath, Alaska Sleetmute, Alaska Nikolai, Alaska Fairbanks, Alaska Anaktuvuk Pass, Alaska Barrow, Alaska Buckland, Alaska Eagle, Alaska Kotzebue, Alaska Lake Minchumina, Alaska Point Lay, Alaska Noorvik, Alaska Fairbanks, Alaska Venetie, Alaska Wainwright, Alaska

Other Plants for Zone 2B

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 Brussels 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 Sunflower Marigold Zinnia Nasturtium Cosmos Echinacea (Coneflower) Black-eyed Susan Apple Tree Pear Tree Peach Tree Plum Tree Sweet Cherry Tree Lemon Tree Borage Lemongrass Ginger Stevia Tomatillo Edamame Fava Bean Mâche Mizuna Sorrel Shishito Pepper Banana Pepper Watermelon Radish Napa Cabbage Popcorn Broccoli Raab Catnip Valerian Lemon Verbena Bee Balm Anise Lovage Chervil Summer Savory Dahlia Snapdragon Pansy Sweet Pea Morning Glory Hollyhock Larkspur Bachelor Button Columbine Impatiens Salvia (Annual) Sweet Alyssum Celosia Lupine Verbena Elderberry Grape Vine Red Currant Gooseberry Serviceberry Fig Tree Avocado Tree Persimmon Tree Olive Tree

Growing Petunia in USDA Zone 2B

Petunia (Petunia × hybrida) grows well in USDA Hardiness Zone 2B. This zone includes cities like Gakona, Glennallen, Mc Grath and 14 more.

The average last frost date for Zone 2B is around Thursday, May 28, 2026. For best results, start your Petunia seeds indoors around Thursday, March 19, 2026, then transplant outdoors around Thursday, June 11, 2026.