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Tradescantia (Spiderwort) ‘Snowcap’

Snowcap’ is a long blooming, clump-forming perennial that will tolerate full sun, shade to semi-shade. This Spiderwort has 1-2 in. wide white triangular snow-white flowers with fuzzy stamens tipped with golden yellow pollen. Numerous buds form in each cluster, but individual flowers open up only a few at a time, each for only one day, blooming in succession from late May into July. Arching, iris-like, dark green leaves are folded lengthwise forming a groove. Prefers moist, well-drained soil, the wetter the soil is the more sun it can tolerate. These will make nice clumps in a few years that can easily be divided. In the right conditions this plant can bloom up to 8 weeks.

An interesting and long-blooming perennial for open woodland gardens, wild gardens, naturalized areas or in moist areas along ponds or streams. Also can be grown in borders, but mid-summer foliage decline is a potential disincentive for a prominent placement.


# Description Qty per Unit Units Available Price/Unit
TD890 Tradescantia (Spiderwort) 'Snowcap' out of stock $0.00

Plant Details +

Size #1
Height 18-24"
Spacing 12-18"
Hardiness Zones 4-9
Exposure Full Sun to Partial Shade
Foliage Dark-Green, Grass-Like
Flower White
Bloomtime May - July

General Information +

Botanical: Tradescantia 'Snowcap'

Common: Spiderwort

Family: Commelinaceae

General Characteristics: This spiderwort garden hybrid is a clump-forming herbaceous perennial which typically grows 1-2' tall. Large, pure white, three-petaled flowers (to 3" diameter) accented by contrasting yellow stamens are borne in terminal clusters (umbels) atop stiff stems. When the stems of spiderworts are cut, a viscous stem secretion is released which becomes threadlike and silky upon hardening (like a spider's web), hence the common name.

Planting/Care Instructions +

Pests or Diseases: Deer-Resistant. No serious insect or disease problems. Young shoots are susceptible to snail damage. Foliage often sprawls in an unattractive manner by mid-summer.

Planting Instructions: Dig a hole large enough to encompass the roots without bending or circling. Set the plant in place so the crown (part of the plant where the root meets the stem) is about 1-2 inches below the soil surface. Cover with soil to the original soil surface and water thoroughly. Grow in average, medium to wet, well drained soil in full sun to part shade. Prefers moist, acidic, humusy soils. Tolerant of boggy soils. Divide clumps when they become overcrowded. Foliage declines after flowering and should then be cut back almost to the ground to encourage new growth and a possible fall bloom.