| Plant | Zone 7a | Zone 7b |
|---|---|---|
| Zinnia | Plant outside: Apr 23 to May 28 Start seeds indoors: around Mar 26 | Plant outside: Apr 12 to May 17 Start seeds indoors: around Mar 15 |
| French marigold | Plant outside: Apr 23 to May 28 Start seeds indoors: around Mar 12 | Plant outside: Apr 12 to May 17 Start seeds indoors: around Mar 1 |
| Petunia | Plant outside: Apr 23 to May 28 Start seeds indoors: around Feb 12 | Plant outside: Apr 12 to May 17 Start seeds indoors: around Feb 1 |
| Cosmos | Plant outside: Apr 23 to May 28 | Plant outside: Apr 12 to May 17 |
| Sunflower | Plant outside: Apr 23 to May 28 | Plant outside: Apr 12 to May 17 |
| Impatiens | Plant outside: Apr 23 to May 28 Start seeds indoors: around Feb 26 | Plant outside: Apr 12 to May 17 Start seeds indoors: around Feb 15 |
| Wax begonia | Plant outside: Apr 23 to May 28 Start seeds indoors: around Jan 29 | Plant outside: Apr 12 to May 17 Start seeds indoors: around Jan 18 |
| Zonal geranium | Plant outside: Apr 23 to May 28 Start seeds indoors: around Feb 26 | Plant outside: Apr 12 to May 17 Start seeds indoors: around Feb 15 |
| Snapdragon | Plant outside: Mar 19 to Apr 16 Start seeds indoors: around Jan 22 Fall planting: Sep 6 to Oct 4 | Plant outside: Mar 8 to Apr 5 Start seeds indoors: around Jan 11 Fall planting: Sep 13 to Oct 11 |
| Pansy | Plant outside: Mar 19 to Apr 16 Start seeds indoors: around Jan 8 Fall planting: Sep 6 to Oct 4 | Plant outside: Mar 8 to Apr 5 Start seeds indoors: around Jan 1 Fall planting: Sep 13 to Oct 11 |
| Sweet alyssum | Plant outside: Mar 19 to Apr 16 Fall planting: Sep 6 to Oct 4 | Plant outside: Mar 8 to Apr 5 Fall planting: Sep 13 to Oct 11 |
| Celosia | Plant outside: Apr 23 to May 28 Start seeds indoors: around Mar 12 | Plant outside: Apr 12 to May 17 Start seeds indoors: around Mar 1 |
| Scarlet sage | Plant outside: Apr 23 to May 28 Start seeds indoors: around Feb 26 | Plant outside: Apr 12 to May 17 Start seeds indoors: around Feb 15 |
| Lantana | Plant outside: Apr 23 to May 28 Start seeds indoors: around Feb 12 | Plant outside: Apr 12 to May 17 Start seeds indoors: around Feb 1 |
| Madagascar periwinkle | Plant outside: Apr 23 to May 28 Start seeds indoors: around Feb 12 | Plant outside: Apr 12 to May 17 Start seeds indoors: around Feb 1 |
| Nasturtium | Plant outside: Apr 23 to May 28 | Plant outside: Apr 12 to May 17 |
| Sweet pea | Plant outside: Mar 19 to Apr 16 Fall planting: Sep 6 to Oct 4 | Plant outside: Mar 8 to Apr 5 Fall planting: Sep 13 to Oct 11 |
| Larkspur | Plant outside: Mar 19 to Apr 16 Fall planting: Sep 6 to Oct 4 | Plant outside: Mar 8 to Apr 5 Fall planting: Sep 13 to Oct 11 |
| Pot marigold | Plant outside: Mar 19 to Apr 16 Fall planting: Sep 6 to Oct 4 | Plant outside: Mar 8 to Apr 5 Fall planting: Sep 13 to Oct 11 |
| Coleus | Plant outside: Apr 23 to May 28 Start seeds indoors: around Feb 12 | Plant outside: Apr 12 to May 17 Start seeds indoors: around Feb 1 |
| Garden verbena | Plant outside: Apr 23 to May 28 Start seeds indoors: around Feb 26 | Plant outside: Apr 12 to May 17 Start seeds indoors: around Feb 15 |
| Spider flower | Plant outside: Apr 23 to May 28 | Plant outside: Apr 12 to May 17 |
| Floss flower | Plant outside: Apr 23 to May 28 Start seeds indoors: around Feb 26 | Plant outside: Apr 12 to May 17 Start seeds indoors: around Feb 15 |
| Moss rose | Plant outside: Apr 23 to May 28 | Plant outside: Apr 12 to May 17 |
Zones measure winter cold, not season length, so your own frost dates can be a week or two off the zone median. Look up your frost dates by ZIP code, or read all about zone 7a.
Hardiness ranges, light and size are typical figures from university extension services and botanic garden plant records; a named variety can differ, so check its tag. Planting dates come from each zone's median frost dates (NOAA 1991 to 2020 climate normals) and the timing rules in how we check.