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Herbaceous Perennial

Penstemon Phoenix Magenta ('Pheni Magna') (Phoenix Series)
  • RHS Plants for pollinators

penstemon [Phoenix Magenta]

An upright, bushy semi-evergreen to evergreen perennial with upright stems. Bell-shaped magenta or wine red flowers with white throats marked in the same purple-red are produced from summer until the autumn.

Synonyms
Penstemon 'Pheni Magna'
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Size
Ultimate height
0.5–1 metres
Time to ultimate height
1–2 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring
Summer Purple Red White
Autumn Purple Red White
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H4
Botanical details
Family
Plantaginaceae
Native to GB / Ireland
No
Foliage
Semi evergreen
Habit
Bushy
Genus

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

Name status

Trade

How to grow

Cultivation

Grow in fertile, moist but well-drained soil in full sun or partial shade. In cold areas, protect plant overwinter with a dry winter mulch. See penstemon cultivation for further advice

Propagation

Propagate by softwood or semi-ripe cuttings in summer

Suggested planting locations and garden types
  • Cottage and informal garden
  • City and courtyard gardens
  • Flower borders and beds
Pruning

Deadhead after flowering to maintain vigour

Pests

May be susceptible to slugs, snails and chrysanthemum eelworms but generally pest free

Diseases

May be susceptible to a downy mildew

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