knotweed ‘Firedance’

A cultivar from Piet Oudolf that is far from this species’ weedy reputation! It creates a dancing affect in gardens on windy days.

Bistorta amplexicaulis ‘Firedance’ (Knotweed ‘Firedance’) is a cultivar from Piet Oudolf that is native to the Himalayas, China, and Pakistan. It holds tiny rose red flowers that bloom June to September on narrow pencil-thin, long-stalked spikes. The leaves are often multi-colored and often marked with dark circles and silver chevrons.

Plants of this genus (Bistorta; previously Persicaria) are known commonly as smartweed, knotweed, fleece flower, or buckwheat.

Botanical Name Bistorta amplexicaulis ‘Firedance’
Common Name knotweed ‘Firedance’
Family Polygonaceae
USDA Zone 5 thru 9
Light Requirement Full Sun to Part Shade
Season(s) of interest summer, fall
Height and Spread 2-3ft x 1.5-2.5ft (60-90cm x 45-75cm)
Flower Color Red
Attracts Wildlife Attracts Pollinators,
Additional Information Not Native to the US Midwest. Native range: Himalayas. Introduced by Piet Oudolf.
Location in Lurie Garden Southeast Dark Plate, East Dark Plate


Average Flowering Time