| H | N |
| Species or Variety | Best Date | Comments |
|---|---|---|
| lisianthus | Dec. 10 | |
| meconopsis | Dec. 13 | |
| schizanthus | Dec. 15 | For flower sale |
| aster | Jan. 1 | |
| datura | Feb 1 | |
| dusty miller | Feb 1 | Frost hardy. |
| datura | Feb. 8 | |
| parsley | Jan. 31 | Soak overnight. |
| portulaca | Feb. 22 | |
| pimientos | Feb. 22 | |
| Medusa peppers | Feb. 22 | |
| daylily | March 2 | |
| petunia | March 4 | Frost hardy. |
| rehmannia | March 5 | |
| impatiens | March 7 | |
| sensitive plant | March 8 | |
| poppies | March 9 | |
| stocks | March 10 | Frost hardy. |
| carnations | March 12 | Freeze first. |
| begonia,tuberous | March 12 | |
| sweet william | March 13 | |
| silene | March 13 | |
| African daisies | March 14 | |
| schizanthus | March 15 | Early sowing. |
| rudbeckia | March 16 | |
| dames rocket | March 16 | |
| matthiola | March 17 | Frost hardy. |
| nasturtium | March 18 | |
| ageratum | March 20 | Frost hardy. |
| coleus | March 21 | For garage sale. |
| basil | March 21 | For garage sale. |
| annual chrysanthemum | March 22 | |
| spider chrysanthemum | March 22 | |
| celosia | March 22 | |
| snapdragons | March 22 | Frost hardy. |
| tomatoes | March 23 | |
| sweet peas | March 24 | Soak overnight. Frost hardy. |
| shirley poppy | March 24 | Frost hardy. |
| tobacco | March 25 | |
| alyssum | March 25 | Frost hardy. |
| scabiosa | March 26 | |
| Icelandic poppies | March 28 | |
| tithonia | March 29 | |
| venidium | March 29 | |
| lavatera | March 29 | Indoors. Not recommended. |
| delphinium | March 30 | Chill first for 3 weeks. |
| basil | March 31 | For my garden. |
| nicotiana | April 1 | Frost hardy. |
| dahlias | April 1 | |
| polkadot plant | April 2 | |
| asclepias | April 3 | No seeds. |
| canna lily | April 3 | Indoors. |
| strawflower | April 4 | Frost hardy. |
| bachelors buttons | April 6 | Use volunteers. Frost hardy |
| rudbeckia | April 6 | Frost hardy. |
| salpiglossis | April 6 | |
| balloon flower | April 7 | |
| marigold | April 10 | |
| giant zinnias | April 11 | |
| white moonflower | April 12 | Soak first. |
| annual hollyhock | April 13 | |
| schizanthus | April 15 | Late sowing |
| four o'clock | April 16 | Seeds. |
| centaurea | April 17 | |
| liatris | April 19 | |
| sweet peas | April 20 | Soak. Outside. |
| bells of Ireland | April 20 | |
| cabbage | April 24 | |
| millet | April 28 | Prevent potbounding. |
| marigold, Royal | May 1 | |
| marigold, Inca | May 1 | |
| pumpkin | May 1 | |
| cobaea | May 2 | Plant seeds vertically. |
| radishes | May 3 | Outdoors. |
| sunflower | May 4 | Indoors. |
| columbine | May 4 | |
| four o'clock | May 9 | Tubers, inside. |
| lettuce | May 10 | Outdoors. |
| morning glory | May 10 | Outdoors. |
| sea holly | May 16 | Root. |
| gladioli | May 17 | Outdoors. |
| scarlet runner | May 20 | Indoors. |
| lavatera | May 20 | Outdoors |
| sunflower | May 24 | Outdoors |
| cosmos | May 24 | Outdoors. |
| scarlet runner | June 10 | Outdoors. |