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Cleome serrulata. This compact, spineless Spider Flower is rare and fascinating, with white flowers surrounded by whiskers of rosy pink atop long, olive green seed pods. It’s perfect for smaller borders. Height: 18”.
Cleome hassleriana. 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.
Spider Flowers Sowing Instructions
Planting Depth:1/4”-1/2” 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.
Cleome hassleriana. 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.
Spider Flowers Sowing Instructions
Planting Depth:1/4”-1/2” 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.
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