This table lists the recommended times to sow flower seeds (by botanical name) for typical Zones 8-9. If you are in zone 7, for instance, go back a month, zone 6, a month and a half. If you don’t know your zone, check the planting zone maps. And when buying transplants, remember to adjust for the age of the plant (about 1-2 months).
Botanical Name |
 |
Ageratum (Floss Flower) |
            |
Aguilegia (Columbine) |
            |
Alcea rosea (Hollyhock) |
            |
Ammi Majus (Queen Anne’s Lace) |
            |
Antirrhinum (Snapdragon) |
            |
Armeria (Thrift, Sea Pink) |
            |
Aster (Aster) |
            |
Calendula officinalis (Calendula, Pot Marigold) |
            |
Campanula (Bellflower) |
            |
Celosia (Cockscomb) |
            |
Centaurea cyanus (Bachelor Button, Cornflower) |
            |
Centaurea moschata (Sweet Sultan) |
            |
Chysanthemum (Chysanthemum) |
            |
Clarkia (Godetia, Clarkia) |
            |
Cobaea scandens (Cup and Saucer Vine) |
            |
Coleus hybridus (Coleus) |
            |
Collinsia heterophylla (Chinese Houses) |
            |
Convolvulus (Convolvulus) |
            |
Coreopsis (Coreopsis) |
            |
Cosmos (Cosmos) |
            |
Cynoglossum amabile (Chinese Forget-me-not) |
            |
Dahlia (Dahlia) |
            |
Delphinium (Larkspur, Delphinium) |
            |
Dianthus (Pink, Dianthus) |
            |
Dianthus barbatus (Sweet William) |
            |
Dianthus caryophyllus (Carnation) |
            |
Digitalis (Foxglove) |
            |
Dimorphotheca (African Daisy, Cape Marigold) |
            |
Erysimum (Wallflower) |
            |
Eschscholzia californica (California Poppy) |
            |
Gaillardia (Blanket Flower) |
            |
Gazania (Gazania) |
            |
Gypsophila (Baby’s Breath, Gypsophila) |
            |
Helianthus (Sunflower) |
            |
Helichrysum (Strawflower) |
            |
Helipterum (Acroclinium) |
            |
Hunnemannia fumariifolia (Mexican Tulip Poppy) |
            |
Iberis sempervirens (Candytuft) |
            |
Impatiens (Impatiens) |
            |
Ipomoea (Morning Glory) |
            |
Ipomopsis (Ipomopsis) |
            |
Lathyrus (Sweet Pea) |
            |
Lavendula (Lavendar) |
            |
Limonium (Statice) |
            |
Linaria (Toadflax) |
            |
Linum (Flax) |
            |
Lobelia (Lobelia) |
            |
Lobularia maritima (Alyssum) |
            |
Lunaria annua (Money Plant) |
            |
Lupinus (Lupine) |
            |
Matthiola (Stock) |
            |
Mentzelia (Blazing Star) |
            |
Mirabilis jalapa (Four O’Clock) |
            |
Moluccella laevis (Bells of Ireland) |
            |
Myosotis (Forget-me-not) |
            |
Nemesia (Nemesia) |
            |
Nemophila (Nemophila) |
            |
Nicotiana (Nicotiana) |
            |
Nigella damascena (Love-in-a-mist) |
            |
Papaver (Poppy) |
            |
Passiflora (Passion Vine) |
            |
Petunia hybrida (Petunia) |
            |
Phacelia campanularia (California Desert Bluebells) |
            |
Phlox (Phlox) |
            |
Platycodon (Balloon Flower) |
            |
Portulaca (Moss Rose) |
            |
Primula (Primrose) |
            |
Rudbeckia (Gloriosa Daisy, Rudbeckia) |
            |
Salpiglossis sinuata (Painted Tongue) |
            |
Salvia (Sage) |
            |
Scabiosa (Pincushion Flower) |
            |
Schizanthus pinnatus (Butterfly Flower) |
            |
Tagetes (Marigold) |
            |
Thunbergia (Thunbergia) |
            |
Tithonia rotundifolia (Mexican Sunflower) |
            |
Torenia fournieri (Wishbone Flower) |
            |
Tropaeolum (Nasturtium) |
            |
Verbena (Verbena) |
            |
Vinca (Periwinkle, Myrtle) |
            |
Viola (Pansy) |
            |
Viola (Viola) |
            |
Zinnia (Zinnia) |
            |
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