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Bistorta amplexicaulis 'JS Caliente' (Red bistort 'JS Caliente')

Other names: Persicaria amplexicaulis 'J.S. Caliente', Polygonum amplexicaule 'JS Caliente', Knotweed 'JS Caliente', Persicaria amplexicaulis 'JS Caliente', Mountain fleeceflower 'JS Caliente', Mountain fleece 'JS Caliente'

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Variety or Cultivar
'JS Caliente' is a robust, upright, clump-forming perennial with large, ovate to lance-shaped, pointed, prominently-veined, mid-green leaves and long-stalked spikes of bell-shaped, red flowers from midsummer to early autumn.
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Season of interest

Flower

Spring Summer Autumn Winter
Flower

Foliage

Spring Summer Autumn Winter
Foliage
Height and spread

Height and spread

Size Max height Max spread To maturity
0.7 m 0.7 m 2-5 years
2 ft 2 ft 2-5 years

Where to grow

Soil type
  • Clay
  • Loamy
Soil drainage
  • Moist but well-drained
  • Moisture-retentive
Soil pH
  • Acid
  • Alkaline
  • Neutral
Sunlight
  • Partial Shade
  • Full Sun
Aspect
  • East
  • West
  • South
  • North
Exposure
  • Exposed
  • Sheltered

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Additional plant details

Cultivation

Plant in any moist soil in sun or partial shade.

Suggested uses

Beds and borders, Cottage/Informal, Low Maintenance, Wildflower, Bees (attract & feed bees)

UK hardiness

H7

USDA zones

Zone 5, Zone 6, Zone 7, Zone 8, Zone 9

Sunset zone

2B, 3, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

WUCOLS

North-Central Coastal = Unknown
Central Valley = Unknown
South Coastal = Unknown
South Inland = Unknown
High and Intermediate Desert = Unknown
Low Desert = Unknown

Foliage

Deciduous

Habit

Clump-forming

Native to

Garden origin

Drought tolerant

No

Flood tolerant

No

Toxicity

Contact with sap may irritate skin. Sap may cause mild stomach upset if ingested.

Plant care

Pruning

Cut back after flowering.

Propagation methods

Division

Pests

Generally pest-free.

Diseases

Generally disease-free.

Cut back after flowering in early autumn (optional)

Remove faded flower stems in early summer

Plant in fertile, moisture retentive soil

Plant container grown plants in a sunny postion

Other plants

Plants in this Genus (0)

Bistorta

Companion plants (0)

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