When to Plant Cosmos in Zone 11A
USDA Zone
11A
Cities Covered
34
Avg Last Frost
Friday, January 1, 2027
Plant Type
Direct Sow
📅 Planting Calendar for Zone 11A
Direct Sow Outdoors Friday, January 1, 2027
Pro Tip: Cosmos can be directly sown outdoors. Plant 0 weeks before your last frost date.
🌿 Plant Details
Scientific Name Cosmos bipinnatus
Days to Maturity 60 days
Sun Requirements Full Sun (6-8 hours)
Plant Spacing 18" apart
🤝 Companion Plants for Cosmos
Good Companions
CornSquashTomato
Cities in Zone 11A
Hermosa Beach, California Malibu, California Venice, California Playa Del Rey, California San Diego, California Miami, Florida Miami Beach, Florida Key Biscayne, Florida North Miami Beach, Florida Hialeah, Florida Dania, Florida Hallandale, Florida Hollywood, Florida Homestead, Florida Key Largo, Florida Opa Locka, Florida Pompano Beach, Florida Pembroke Pines, Florida Fort Lauderdale, Florida Boca Raton, Florida Deerfield Beach, Florida Delray Beach, Florida Captiva, Florida Santa Monica, California La Jolla, California Hawaii National Park, Hawaii Hilo, Hawaii Holualoa, Hawaii Honaunau, Hawaii Kamuela, Hawaii Ninole, Hawaii Ookala, Hawaii Paauilo, Hawaii Volcano, Hawaii
Other Plants for Zone 11A
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 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
Browse Other Zones
Growing Cosmos in USDA Zone 11A
Cosmos (Cosmos bipinnatus) grows well in USDA Hardiness Zone 11A. This zone includes cities like Hermosa Beach, Malibu, Venice and 31 more.
The average last frost date for Zone 11A is around Friday, January 1, 2027. Cosmos can be directly sown outdoors around Friday, January 1, 2027.
Expect to harvest your Cosmos approximately 60 days after planting.