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Penstemon 'Schoenholzeri' AGM

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Characteristics

Plant type

Herbaceous Perennial

Habit

Clump-forming

Resilience

Hardiness

H4 (hardy - average winter)

Colour

Flower

Red and White in Autumn and Summer

Foliage

Green in Autumn, Spring, Summer and Winter

Size

Ultimate height

0.5-1 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

penstemon 'Schoenholzeri'

Family

Plantaginaceae


Penstemon may be deciduous or evergreen perennials or subshrubs, with simple, narrow leaves and racemes or panicles of bell-shaped or funnel-shaped flowers in summer and early autumn

'Schoenholzeri' is a perennial to 80cm in height, with narrow foliage and panicles of tubular bell-shaped crimson flowers 3.5cm in width, striped red on white in the throat

Synonym(s)

  • Penstemon hartwegii 'Firebird'
  • Penstemon rupicola 'Ruby'
  • Penstemon 'Firebird'
  • Penstemon 'Ruby' misapplied

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

  • South-facing, East-facing or West-facing
  • Exposed or Sheltered

Cultivation

Grow in fertile, well-drained soil in full sun or partial shade. In cold areas, protect plant overwinter with a dry winter mulch

Soil

  • Well-drained
  • Acid, Alkaline or Neutral
  • Chalk, Loam or Sand

Propagation

Propagate by softwood cuttings in early summer or semi-hardwood cuttings in midsummer. Propagate by division in spring

Suggested planting locations and garden types

City/Courtyard Gardens, Cottage/Informal Garden or Flower borders and beds


How to care

Pruning

Deadhead after flowering to maintain vigour, then cut back to base in winter

Pests

May be attacked by slugs, snails and chrysanthemum eelworms

Diseases

May be subject to a downy mildew