Overview

Persicaria affinis 'Donald Lowndes' is a clump-forming, spreading perennial in the genus Bistorta, part of the Polygonaceae family, with deciduous foliage. Persicaria affinis 'Donald Lowndes' grows best in full sun and partial shade, and tolerates moist and well-drained soil soils and any pH. Its UK hardiness is rated H5. Suggested uses include groundcover, borders and rock gardens. It is native to Himalayas.

About

Bistorta affinis, the Himalayan bistort, fleece flower, or knotweed, is a species of flowering plant in the family Polygonaceae, native to the Himalayas.

Wikipedia contributors, CC BY-SA 4.0 — Bistorta affinis

About the genus

Bistorta is a genus of flowering plants in the family Polygonaceae. As of February 2019 about 40 species are accepted. It has been supported as a separate clade by molecular phylogenetic analysis.

Wikipedia contributors, "Bistorta", CC BY-SA 4.0 — Bistorta

Growing conditions

Best soil and position for Bistorta

Sunlight
full sun, partial shade
Soil type
moist, well-drained soil
Soil pH
Acid, Neutral, Alkaline
Soil moisture
moist
Aspect
North-facing, East-facing, South-facing, West-facing
Exposure
Exposed, Sheltered
UK hardiness
H5

Plant details

Persicaria affinis 'Donald Lowndes' size, habit and characteristics

Plant type
perennial
Habit
Clump-forming, Spreading
Foliage
Deciduous
Suggested uses
groundcover, borders, rock gardens
Native to
Himalayas

Care notes

Pruning and caring for Persicaria affinis 'Donald Lowndes'

Cultivation
Prefers moist, well-drained soil; tolerates partial shade; cut back old flower stems after flowering
Pruning
Cut back after flowering to maintain shape and encourage fresh growth
Propagation
division in spring or autumn
Pest resistance
Slugs, Snails
Disease resistance
Generally disease-free

Frequently asked questions

How do I grow Persicaria affinis 'Donald Lowndes'?

Prefers moist, well-drained soil; tolerates partial shade; cut back old flower stems after flowering.

Where is the best place to plant Persicaria affinis 'Donald Lowndes'?

Persicaria affinis 'Donald Lowndes' prefers full sun and partial shade. It suits exposed and sheltered positions.

What soil does Persicaria affinis 'Donald Lowndes' need?

Persicaria affinis 'Donald Lowndes' grows best in moist and well-drained soil soil. It is happy in soil of any pH. Aim for soil that stays moist.

How do I prune Persicaria affinis 'Donald Lowndes'?

Cut back after flowering to maintain shape and encourage fresh growth.

Is Persicaria affinis 'Donald Lowndes' hardy in the UK?

Persicaria affinis 'Donald Lowndes' has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Persicaria affinis 'Donald Lowndes'?

Division in spring or autumn.

From the Fenn Plants journal

More in the Bistorta genus

Browse all Bistorta →