‘Sweet Kate’


Full nameTradescantia (Andersoniana Group) ‘Sweet Kate’.
Name statusAccepted, the valid name for a unique cultivar.

Established in a nomenclatural standard herbarium specimen (“Tradescantia (Andersoniana Group)”, 2000).

Also known as:

Hawke (2010) considered ‘Blue and Gold’ to be the earliest name and ‘Sweet Kate’ a synonym, but this was later confirmed to be a mistake (Richard Hawke, personal correspondence, May 2022). ‘Sweet Kate’ is now accepted, as the oldest and most widespread name in use.
OriginsDiscovered by Mrs Stevens in her garden, introduced by Hillier Nurseries (“Tradescantia (Andersoniana Group)”, 2000).
ClassificationLike other hardy garden hybrids, it is now placed in the Andersoniana Group. These hybrids are sometimes mislabelled as Tradescantia virginiana or the invalid botanical hybrid Tradescantia × andersoniana.
Legal protectionNone.
AvailabilityMass-produced and widely available.


Preserved and described in a nomenclatural standard herbarium specimen (“Tradescantia (Andersoniana Group)”, 2000), with reference to the RHS Colour Chart.

Cultivar groupTradescantia Andersoniana Group.
FoliageStems are yellow (1C) and bright green (4C).

Leaves are bright green (150B to 150C), fading to yellow (153D).
FlowersFlower stalk is 2.5cm long, purple (more blue than 72B).

Sepals are 1.5cm long, pale green (145B to 145C).

Petals are bright powdery blue (88A). Stamen filaments are purple (87A to 82A), anthers are yellow (12A).


Tradescantia (Andersoniana Group). (2000). [Herbarium specimen, barcode WSY0026562]. RHS Wisley Herbarium.

Hawke, R. G. (2010). A Comparative Study of Tradescantia Cultivars. Plant Evaluation Notes, 34. Internet Archive link.