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