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Persicaria affinis 'Dimity'
Persicaria affinis 'Dimity'
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Common Name:
Lesser Knotweed 'Dimity'
Description:
Persicaria affinis 'Dimity' is a hardy, low-growing perennial ground cover known for its striking, long-lasting flower spikes and dense, mat-forming foliage. It produces slender spikes of soft pink flowers that gradually deepen to a rich crimson as they mature, creating a beautiful two-tone effect from late spring through autumn. The small, lance-shaped green leaves take on attractive bronze-red tones in cooler months, adding year-round interest. This tough and reliable plant thrives in full sun to part shade and prefers moist, well-drained soil but can tolerate periods of dryness once established. It is an excellent choice for borders, rock gardens, slopes, and pathways where it helps suppress weeds and prevent soil erosion.
Form:
- Ground Cover
- Shrub - Clumping / Grass-like / Mounding
Mature Size:
- Height: 15–30cm
- Width: 60–90cm
Aspect:
- Full Sun
- Part Shade
Flowering:
- Flowers in Spring
- Flowers in Summer
- Flowers in Autumn
Flower Colour:
- Soft Pink (maturing to Crimson)
Key Attributes:
- Suitable for Pots
- Bee Attracting
- Perennial
- Low Maintenance
- Drought Tolerant
- Weed Suppressing
- Erosion Control
- Cold Hardy
Toxicity:
- Non-toxic to humans and pets
Companion Plants:
- Hellebores
- Heuchera
- Lavandula (Lavender)
- Salvia
- Nepeta (Catmint)
For more information and photos of this species, Warners Nursery has detailed information available to the public via the following link.Â

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