Remove all packaging straight away. Check the compost and water thoroughly if dry, then place the plants outdoors in a sheltered position or in a greenhouse.
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Persicaria
'Blackfield'
red bistort
Dark, poised and rather dramatic, Persicaria 'Blackfield' brings a rich note of colour to the summer border without demanding centre stage. This RHS Award of Garden Merit winner forms a compact, clump-making perennial with handsome dark green leaves, creating a tidy base from which slender stems rise with quiet confidence. From near-black buds, the flowers open into velvety spikes of very dark red, giving red bistort a depth that feels both refined and wonderfully moody. Persicaria 'Blackfield' is especially effective woven through soft grasses, silver foliage or dusky dahlias, where its upright flower spikes add rhythm, contrast and a little botanical intrigue.
Despite its polished appearance, Persicaria 'Blackfield' is refreshingly easy to place, suiting sunny or lightly shaded borders with soil that does not dry out too fiercely. Its compact habit makes it useful in smaller gardens too, where every plant must earn its keep and preferably look good while doing so. The long flowering period brings months of colour, and the bees are often quicker than we are to appreciate its charms. Plant Persicaria 'Blackfield' in generous groups for a sophisticated wash of deep red, or let it punctuate mixed planting schemes. Elegant, dependable and just a touch brooding, Bistorta amplexicaulis 'Blackfield' is red bistort with real presence.
Quantity
Plant profile
Plant calendar
Check each plant’s specifications. Hardy perennials can remain outdoors, while half-hardy and tender varieties should be kept frost-free until the risk of frost has passed.
Plant within a month, preferably sooner. Choose a suitable position, remove weeds and loosen the soil thoroughly, adding compost or well-rotted organic matter where needed.
Gently remove the plant from its pot and plant with the root ball level with the soil surface. Firm gently, water well and add a plant label.
Water regularly until established and whenever the soil feels dry during spring and summer. Feed container-grown plants fortnightly during active growth to encourage healthy flowering.
- Botanical name
-
Persicaria amplexicaulis 'Blackfield'
Bistorta amplexicaulis 'Blackfield' - Flower colour
- Dark red
- Established height
- 1-1.2m
- Established spread
- 1-1.2m
- Growing skill
- Easy to grow
- Habit
-
Upright
Clump-forming - Hardiness
- Fully hardy
- Leaf colour
- Green
- Mouse resistant
- Yes
- Plant size
- 1
- Plant spacing
- 10 plants per m2
- Pollinator friendly
- Yes
- Position
- Sheltered
- Rabbit resistant
- Yes
- Scented
- No
- Soil acidity
- Any
- Soil moisture
- Damp
- Soil type
-
Loam
Clay
Loam-based compost - Suitable for
-
Borders
Wildlife gardens
Low maintenance gardens - Sunlight
-
Full sun
Partial shade - Toxicity
- No report
- Years to establish
- 2-3 years
Pollinator-friendly
Thrives in full sun
RHS Recommended
Perennial
Fully hardy
Packed peat-free
Low maintenance
Attracts wildlife
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