Tradescantia x andersoniana ‘Sweet Kate’

('Sweet Kate', Spiderwort)


Hardiness Zones:

 4a  4b  5a  5b  6a  6b  7a  7b  8a  8b  9a  9b

Quick Overview:

‘Sweet Kate? is a compact, clump-forming, hybrid spiderwort that is noted for its unique yellow foliage. It typically grows to 12? tall. Three-petaled, purplish-blue flowers (to 1.5? diameter) accented by contrasting yellow stamens are borne in terminal clusters (umbels) atop stiff stems. Numerous flower 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 May into summer. Arching, iris-like, bright yellow leaves are folded lengthwise forming a groove. When the stems of spiderworts are cut, a viscous stem secretion is released which becomes thread-like and silky upon hardening (like a spider?s web), hence the common name.

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Easily grown in average, medium to wet, well-drained soil in full sun to part shade. ?Sweet Kate? usually develops best yellow foliage color in full sun. Prefers moist, acidic, humusy soils. Tolerant of wet, boggy soils. Deadhead each flower cluster after all buds in the cluster have opened to extend the bloom period. As the heat of the summer sets in, foliage tends to decline considerably and flowering slows down or stops entirely, at which point plants should be cut back hard. Cutting back plants almost to the ground will promote both new foliage growth and an additional late summer to fall bloom. Divide clumps when they become overcrowded.

Additional information

Common Name

'Sweet Kate', Spiderwort

Botanical Name

Tradescantia x andersoniana 'Sweet Kate'


1 gallon

Evergreen or Deciduous


Hardiness Zone

4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b

Growth Rate


Light Requirements

Part-shade, Part-sun, Sun


to 1 ft.


to 1 ft.

Soil Condition

High in Organic Matter

Water Needs


Blooming Period

April to June

Flower Color




Foliage Color


Deer Resistant


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