When to Plant Cauliflower in District of Columbia

State

District of Columbia

Cities Covered

USDA Zones

7a, 7b, 8a

Plant Type

Indoor Start

📅 Planting Calendar for District of Columbia

Based on Washington (Zone 8a). Dates may vary by city.

Start Seeds Indoors Friday, February 6, 2026

Transplant Outdoors Friday, March 20, 2026

Note: District of Columbia spans multiple zones (7a, 7b, 8a). Select your city below for more precise dates.

🌿 Plant Details

Scientific Name Brassica oleracea var. botrytis

Days to Maturity 75 days

Sun Requirements Full Sun (6 hours)

Plant Spacing 18" apart

Find Your City in District of Columbia

Washington (Zone 8a) Washington Navy Yard (Zone 8a)

Other Plants for District of Columbia

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 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) 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

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Growing Cauliflower in District of Columbia

Cauliflower (Brassica oleracea var. botrytis) is a popular garden vegetable in District of Columbia. The state spans USDA Hardiness Zones 7a, 7b, 8a, so planting dates can vary significantly depending on your location.

For most of District of Columbia, you should start Cauliflower seeds indoors around Friday, February 6, 2026, then transplant outdoors around Friday, March 20, 2026.

For the most accurate planting dates, enter your ZIP code on our homepage or select your city from the list above.