Knotweeds 'Blackfield' (Persicaria amplexicaulis 'Blackfield')

Knotweeds 'Blackfield'

Also known as: Bistorts 'Blackfield'

Considered unique for its blood-red spikes that are present from summer to fall, this cultivar's name can be attributed to its black-tipped tapers. As opposed to other amplexicaulis, the knotweeds 'Blackfield' is taller and will bloom dark red, long-lived flowers. It can be used in borders and as a ground cover.

Scientific classification

Pinks, cacti, and allies

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Perennial

Lifespan

Herb

Plant Type

Green

Leaf Color

Red

Flower Color

Deciduous

Leaf type

5 - 35 ℃

Ideal Temperature

Care Guide for Knotweeds 'Blackfield'

Every week

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Pruning: Knotweeds 'Blackfield' requires early to late spring pruning for optimal health. Begin by removing dead stems, then cut back one-third of the plant to promote new growth and maintain shape. This practice enhances air circulation, reduces fungal issues, and improves overall appearance.

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