When to Plant Fennel in Buena, Washington (98921)

Location

Buena, Washington

ZIP Code

98921

USDA Zone

Last Frost

Friday, April 10, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, March 13, 2026

Transplant Outdoors Friday, March 27, 2026

Pro Tip: Start Fennel seeds indoors 4 weeks before your last frost date, then transplant outdoors around Friday, March 27, 2026.

🌿 Plant Details

Scientific Name Foeniculum vulgare

Days to Maturity 80 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 7-14 days

Ready to Plant Fennel in Buena?

Get your seeds now so they're ready by Friday, March 13, 2026.

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🤝 Good Companions

Dill

See the full companion planting guide for Fennel →

Other Plants for Buena

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 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) Petunia 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 Fennel in Zone 7a

Fennel (Foeniculum vulgare) is a popular garden vegetable. In Buena, Washington, which is in USDA Hardiness Zone 7a, you should start seeds indoors around Friday, March 13, 2026.

Your average last frost date is Friday, April 10, 2026. Plan to transplant your Fennel seedlings outdoors around Friday, March 27, 2026, about -2 weeks after your last frost date.