Many types are available, ranging in size from a few inches to a few feet in height. Marigolds come in white, yellow, red, orange and combinations of those colors. Many believe that marigolds help repel insect pests, so they're often planted in and around vegetable patches. Plant them later in the season, and they'll bloom until the first frost. Well-drained soil is mandatory, as verbenas won't tolerate wet roots.
Plants bloom all summer and into the fall and are available in a variety of pinks and white.
All parts of the plant cause severe discomfort if consumed. Because they're a favorite food of slugs and snails, it's wise to surround the plants with copper barriers or diatomaceous earth to protect them. All gerberas need excellent drainage. Plant 2' apart for best results. Pick off flowers to keep plants bushy and full.