Persicaria affinis ‘Superba’
Himalayan Bistort
Persicaria affinis ‘Superba’ is an evergreen, herbaceous perennial that forms weed-smothering mats of fresh green, lance-shaped leaves, bluish on the reverse.
Erect, ‘rat-tail’ flower spikes rise from the centre in late summer, carrying a densely clustered ‘toilet-brush’ of tiny flowers that are pink in bud opening to a deep ruby. Leaves flush crimson-bronze in autumn, only to return to green again over winter. The Himalayan Bistort makes excellent ground cover that is not too rampant for any soil that doesn’t dry out completely. Similar to ‘Darjeeling Red’ but slightly larger and with paler flowers.
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Care & Size Guidance
Persicaria affinis ‘Superba,’ or Himalayan Bistort, is easy to care for and cultivate. Plant it in well-draining soil and a sunny to partially shaded location. Once established, it is drought-tolerant, making it ideal for low-water gardens. Regular watering during dry spells will benefit its growth. Minimal pruning is needed to maintain its attractive appearance.
This perennial ground cover is relatively pest-resistant and low-maintenance, making it a popular choice for borders, rock gardens, or as a delightful ground cover. Enjoy its vibrant pink flowers and dense spreading habit, adding beauty and texture to your landscape effortlessly.
Himalayan Bistort will not grow much taller than 0.5 metres, but it will continue to spread horizontally so be sure to allow sufficient room for it to do so. It is easy to pull out runners where they are not wanted, and these can be potted up or planted in other parts of the garden.
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