No. Dahlias (Dahlia) are tender perennials that grow in USDA hardiness zones 7 to 10, but they are grown as annuals in many gardens. Growing dahlias is not for the casual gardener, because you need to dig up the tubers in the fall, store them carefully over winter, a...
The common marigold (Tagetes erecta or Tagetes patula) grows where night temperatures do not drop below 60 degrees Fahrenheit. In colder parts of the United States, marigolds are grown as an annual plant.
Are any daisies perennials? First, remember that some daisy plant varieties are annuals, living for one season only, whileother are perennials, living for more than one season. For example, the marguerite daisy (Argyranthemum frutescens) is an annual plant. ... Perennial daisies must grow withi...
Few insects or diseases bother coneflowers; however, I do have to fight off Japanese beetles, which can heavily damage the petals. You can tap the beetles off the plants and into soapy water. Purple coneflowers are used for herbal healing. Both aboveground and root parts are used, either f...