Tradescantia x andersoniana ‘Sweet Kate’

24 Oct

Tradescantia x andersoniana 'Sweet Kate' (21/09/2013, Kew Gardens, London)

Tradescantia x andersoniana ‘Sweet Kate’ (21/09/2013, Kew Gardens, London)

Position: Full sun to partial shade

Soil: Moist, well drained

Flowering period: Summer to early autumn

Eventual Height: 60cm

Eventual Spread: 30cm

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

Family: Commelinaceae

Tradescantia x andersoniana ‘Sweet Kate’ is a herbaceous perennial with a grass-like tufted habit.  It yellow green leaves are strap like with entire margins, with parallel venation and a centre groove held on tubular stems. Its blue/ purple flowers have contrasting yellow stamens and are composed of three petals. Each flower will only bloom for a single day. Its root are rhizomes which aids its spread.

Tradescantia x andersoniana, commonly known as Spiderwort, is likely to be a cross between Tradescantia ohioensis, Tradescantia subspera and Tradescantia virginiana. This plant may be invasive given the right  conditions.

The etymological root of the binomial name Tradescantia is named after John Tradescant (1608-1662) who served as gardener to Charles 1 of England. Andersoniana is named after Edgar Anderson (1897 – 1969), an American botanist.

The landscape architect may Tradescantia x andersoniana ‘Sweet Kate’ is useful as a low maintenance perennial tolerant shady locations with a long flowering period. It also naturalises effectively and is suitable for ground-cover in woodland schemes.

Tradescantia x andersoniana 'Sweet Kate' Flower (21/09/2013, Kew Gardens, London)

Tradescantia x andersoniana ‘Sweet Kate’ Flower (21/09/2013, Kew Gardens, London)

Ecologically,  Tradescantia x andersoniana ‘Sweet Kate’ flowers are attractive to pollinating insects.

Tradescantia virginiana prefers moist, fertile, well-drained soils. It tolerates most pH of soil, although it prefers an acidic pH of soil. It will tolerate wet soils.

Tradescantia virginiana requires little to no care. To keep a tidy appearance this plant may be cut to ground level once flowering is complete in early winter. Large clumps may be divided in autumn to increase plant numbers.


3 Responses to “Tradescantia x andersoniana ‘Sweet Kate’”

  1. 03/07/2017 at 20:59 #

    Hello, just found this beautiful large area holding this plant in the home I just bought in central New England. ..pretty over grown….beautiful. .but afraid of some of the other stuff growing around and how much I have……it’s in a huge circle around a HUGE weeping cherry tree at least 50 yrs old with many other things like blueberries, and other plants I can’t identify. …I cut EVERY down in OCTOBER and it grew back 2x fold…any suggestions? ??? LOVE THIS PLANT!!!

    • Davis Landscape Architecture 18/07/2017 at 10:49 #

      If you want to reduce the area of this plant you will need to dig up its rhizomes where you do not want it.

      You may be able to reduce are by treating some of it with a translocated herbicide, my only concern with this method would be that the herbicide may be transferred through the whole plant and kill the entire patch. You could dig up some rhizomes before you treat and grow them in post before you try the herbicide technique, just in case…


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