Half-Hardy Annuals
* Denotes self-sowing
| Scientific name | Common name |
| Callistephus chinensis | China aster |
| Clarkia amoena | Clarkia |
| Cleome hasslerana | Spider flower * |
| Eccremocarpus scaber | Glory flower |
| Godetia spp. | Godetia |
| Helianthus annuus, H. giganteus | Sunflower |
| Ipomoea tricolor | Morning glory * |
| Lobelia erinus | Lobelia |
| Nemesia spp. | Nemesia |
| Papaver spp. | Poppy * |
| Primula spp. | Primrose, polyanthus |
| Rudbeckia spp. | Gloriosa daisy |
| Senecio mikenoides | German ivy, dusty miller |
| Tagetes erecta | African marigold |
| Tagetes patula | French marigold |
| Tanacetum parthenium, T. ptarmiciflorum | Feverfew * |
| Torenia fournieri | Torenia, wishbone flower |
| Verbena tenuisecta, V. rigida, V. x hybrida | Verbena |
| Zinnia angustfolia, Z. elegans | Zinnia |