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| | Perennials, Annuals and Bulbs -- March Tips |
 | | Based on limited observations, the following should be considered as short-life (one year) seeds: aster, candytuft, columbine, ornamental onion, honesty, kochia, phlox, salvia, strawflower and vinca. |
 | | Some common, flower seeds viable for more than one year if stored properly are alyssum, calendula, centaurea, coreopsis, cosmos, marigold, nasturtium, nigella, petunia, salpiglossis, scabiosa, schizanthus, sweet pea, verbena, viola and zinnia. |
 | | Many annual flowers are very frost hardy when plants are small, including alyssum, California poppy, candytuft, larkspur, pansy, viola, phlox, pinks, Shirley poppy, snapdragon, stock and sweet pea. |
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