Cleome hassleriana (Spider Flower)

Adding a delicate airiness to borders, Cleome hassleriana (Spider Flower) is a fast-growing annual plant with dramatic large, loose balls of sweetly fragrant flowers with fascinating long stamens that protrude out, giving them a spider-like look. They rise above the handsome foliage of aromatic, palmate green leaves with a spine at the base of each leaf.

Adding a delicate airiness to borders, Cleome hassleriana (Spider Flower) is a fast-growing annual plant with dramatic large, loose balls of sweetly fragrant flowers with fascinating long stamens that protrude out, giving them a spider-like look. They rise above the handsome foliage of aromatic, palmate green leaves with a spine at the base of each leaf. The attractive blooms, in shades of pink, purple or white, are followed by thin seed pods that will split open before dispersing the seed within. Blooming over a reasonably long period, from early summer until frost, Spider Flower remains attractive in the cold season thanks to its dried flower heads, which will be visited in fall by birds that feed on the seeds.

  • Vigorously growing up to 3-6 ft. high (90-180 cm) and spreading up to 12-18 in. (30-45 cm), Spider Flower is an ideal addition to beds and borderscottage gardens, butterfly gardens, and containers. Perfect in background plantings and mixed with shrubs. Group in clusters of 6 or more for best effect.
  • Performs best in full sun or light shade in average, dry to medium moisture, well-drained soils. Drought tolerant once established.
  • May be grown from seeds. Sow seeds outdoors after all danger of frost has passed or indoors 6-8 weeks prior to the last spring frost date. Will freely self-seed under satisfactory growing conditions.
  • Generally pest or disease free
  • Fairly low maintenance, add this charming and graceful plant to the landscape, and you will be rewarded with abundant happy butterflies, hummingbirds, and birds!
  • Rabbit resistant
  • Promptly remove the seed pods if self-seeding is not desired
  • Native to Paraguay, Argentina, Uruguay, and southern Brazil

Requirements

Hardiness 2
– 11

Heat Zones 1
– 12

Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Annuals
Plant Family Cleome – Spider Flowers
Exposure Full Sun
Season of Interest Summer (Early,Mid,Late)Fall
Height 3'
– 6'
(90cm
– 180cm)
Spread 1'
– 2'
(30cm
– 60cm)
Spacing 18″
– 24″
(45cm
– 60cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Cut Flowers, Fragrant, Showy
Tolerance Drought, Rabbit
Attracts Birds, Butterflies, Hummingbirds
Garden Uses Beds and Borders
Garden Styles Informal and Cottage, Prairie and Meadow