When to Plant Marigold in Zone 12A
USDA Zone
12A
Cities Covered
25
Avg Last Frost
Friday, January 1, 2027
Plant Type
Indoor Start
📅 Planting Calendar for Zone 12A
Start Seeds Indoors Friday, November 20, 2026
Transplant Outdoors Friday, January 15, 2027
Pro Tip: Start Marigold seeds indoors 6 weeks before your last frost date for best results.
🌿 Plant Details
Scientific Name Tagetes patula
Days to Maturity 50 days
Sun Requirements Full Sun (6-8 hours)
Plant Spacing 12" apart
🤝 Companion Plants for Marigold
Good Companions
TomatoPepperBasilSquash
Cities in Zone 12A
Aiea, Hawaii Anahola, Hawaii Haiku, Hawaii Hanalei, Hawaii Waikoloa, Hawaii Kalaheo, Hawaii Kapaa, Hawaii Kualapuu, Hawaii Kunia, Hawaii Kurtistown, Hawaii Lawai, Hawaii Lihue, Hawaii Makawao, Hawaii Makaweli, Hawaii Papaikou, Hawaii Pearl City, Hawaii Wahiawa, Hawaii Pukalani, Hawaii Mililani, Hawaii Kula, Hawaii Waialua, Hawaii Waipahu, Hawaii Wheeler Army Airfield, Hawaii Schofield Barracks, Hawaii Camp H M Smith, Hawaii
Other Plants for Zone 12A
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 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 Tulip Daffodil Crocus Hyacinth Grape Hyacinth Ornamental Allium Bearded Iris Snowdrop Asiatic Lily Gladiolus
Browse Other Zones
Growing Marigold in USDA Zone 12A
Marigold (Tagetes patula) grows well in USDA Hardiness Zone 12A. This zone includes cities like Aiea, Anahola, Haiku and 22 more.
The average last frost date for Zone 12A is around Friday, January 1, 2027. For best results, start your Marigold seeds indoors around Friday, November 20, 2026, then transplant outdoors around Friday, January 15, 2027.
Expect to harvest your Marigold approximately 50 days after planting.