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Spider Flowers

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.

White Queen Spider Flower

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The best glistening white Spider Flower, White Queen illuminates moon gardens with large, airy composite flowers. We particularly adore White Queen paired with Blue Victoria Salvia and planted throughout lush blue-green foliage gardens.

One packet of about 200 seeds
Catalog #7322
  • Buy 10 for $3.30 each and save 10%
  • Buy 50 for $2.75 each and save 25%

Availability: In stock


Gardening Tips

Spider Flowers Sowing Instructions
Planting Depth
Seed Spacing:2”-3”
Plant Spacing:12”-18”
Days to Germination:10-14 days
Germination Temperature:70°-80°F

Cleome spinosa, Spider Plant. It is best to plant Cleome seeds directly in the garden after the last frost date. They may also be started indoors in a sterile soil mix, 6 to 8 weeks before planting outside. Cleome needs alternating day and night temperatures. Sow thinly and shallowly as light improves germination. Keep soil evenly moist until seedlings emerge. When seedlings are large enough to transplant, be sure to “harden them off” by gradually exposing the plants to the outdoors over a period of 7 to 10 days. Cleome appreciates full sun but tolerates partial shade; the garden bed should be rich, fertile, well-draining soil. Thin or transplant seedlings to 12" to 18" apart and keep the seedlings well-watered and weeded. Mature plants will tolerate heat and drought conditions.

Shade Tolerance