Annual flowers fall into two categories: varieties that like it warm and varieties that like it cool. Most cool-season annuals, such as pansies and violas, nemesia, diascia, calendula, poppy, snapdragon, and sweet alyssum, can take a little frost. Plant them in beds and borders or containers and gain a few early weeks of color.
Tip: Most cool-season annuals fade when summer heat arrives; replace them with heat-loving varieties, such as petunia, pentas, nasturtium, vinca, and lantana, for color all summer long.
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