Cleome hassleriana. Spider Flowers are an indispensable class of old-fashioned annuals that were popularized in Victorian-era cottage gardens. As beautiful in today’s gardens as in those of yesteryear, Spider flowers have very broad, spider-like blooms with variably elongated pistils and stamens that create a fireworks-in-the-garden effect. Direct-sow Spider Flowers into the garden after the last spring frost date
. You may also start them indoors 6 to 8 weeks earlier and transplant them into the garden after all threat of frost has passed
. Carefree Spider Flowers are easily grown, and once established, they are heat and drought tolerant. (If you’ve ever tried to use Spider Flowers as cut flowers, you would have discovered how incredibly sticky the foliage and stems are, hence the rarely used moniker Clammyweed
. Their blooms are best enjoyed in the garden.) Deer resistant. Annual. Summer flowering. Average seed life: 1 year.