Perennials

Tradescantia (Andersoniana Group) 'Sweet Kate'

Sweet Kate spiderwort

cultivar photograph. ‘Sweet Kate’ Form (Haywood County,NC). Surrounding plants are not included.

Violet-blue flowers contrast with brilliant yellow, strap-shaped leaves. A compact perennial for moist borders and containers. Grow in fertile, moisture-retentive soil.

At a glance

Sun: Full sun to part shade; afternoon shade in heat
Mature size: About 14 in. tall × Up to about 20 in. wide
Water: Moist but well drained
Hardiness: RHS H6 (UK rating; −4–5°F)
Bloom: Violet blue; midsummer–early fall.

Sizes & prices

#1$16.99

Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.

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Resistance & tolerances

Drought: Keep evenly moist; not a dry-site choice.
Wet soil: Moist but well drained; avoid waterlogging.

Keep in mind: Sap may cause skin irritation; wear gloves when handling.

Seasonal interest

Foliage: Deciduous yellow leaves.

Growing & care

Flowers: Cut back flowered stems to limit seedlings and encourage rebloom.
Division: Divide in spring or fall.

Sources & photo credits

Royal Horticultural Society

Photo: Jim Janke · CC BY 4.0

Image notes: cultivar photograph. ‘Sweet Kate’ Form (Haywood County,NC). Uncropped. Surrounding plants are not included.

Reviewed September 19, 2026. Growing conditions vary by location.