When to Plant Celosia in Zone 11B

USDA Zone

11B

Cities Covered

Avg Last Frost

Friday, January 1, 2027

Plant Type

Indoor Start

📅 Planting Calendar for Zone 11B

Start Seeds Indoors Friday, November 20, 2026

Transplant Outdoors Friday, January 8, 2027

Pro Tip: Start Celosia seeds indoors 6 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Celosia argentea

Days to Maturity 75 days

Sun Requirements Full Sun (6-8 hours)

Plant Spacing 9" apart

🤝 Companion Plants for Celosia

Good Companions

MarigoldZinniaBasil

See the full companion planting guide for Celosia →

Cities in Zone 11B

Long Key, Florida Islamorada, Florida Key West, Florida Summerland Key, Florida Big Pine Key, Florida Marathon, Florida Key Colony Beach, Florida Marathon Shores, Florida Tavernier, Florida Hana, Hawaii Ocean View, Hawaii Mountain View, Hawaii

Other Plants for Zone 11B

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) 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 Lupine Verbena Elderberry Grape Vine Red Currant Gooseberry Serviceberry Fig Tree Avocado Tree Persimmon Tree Olive Tree

Growing Celosia in USDA Zone 11B

Celosia (Celosia argentea) grows well in USDA Hardiness Zone 11B. This zone includes cities like Long Key, Islamorada, Key West and 9 more.

The average last frost date for Zone 11B is around Friday, January 1, 2027. For best results, start your Celosia seeds indoors around Friday, November 20, 2026, then transplant outdoors around Friday, January 8, 2027.

Expect to harvest your Celosia approximately 75 days after planting.