Penstemon 'Pennington Gem'
penstemon 'Pennington Gem'
'Pennington Gem' is a compact semi-evergreen perennial forming a clump to 80cm in height, with narrow grey-green foliage and copious erect racemes or panicles of tubular, white-throated clear pink flowers 4cm in length
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Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Grey Silver | |||
|---|---|---|---|---|
| Summer | Pink White | Green Grey Silver | ||
| Autumn | Pink White | Green Grey Silver | ||
| Winter | Green Grey Silver |
Position
- Full sun
- Partial shade
Aspect
South–facing or East–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H3Botanical details
- Family
- Plantaginaceae
- Native to the UK
- No
- Foliage
- Semi evergreen
- Habit
- Clump forming
- 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
Accepted
How to grow
Cultivation
Grow in fertile, well-drained soil in full sun or partial shade. In cold areas, protect plant overwinter with a dry winter mulch
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 and courtyard gardens
- Cottage and informal garden
- Flower borders and beds
Pruning
Deadhead after flowering to maintain vigour, then cut back to base in winter
Pests
May be susceptible to slugs, snails and chrysanthemum eelworms
Diseases
May be subject to a downy mildew
Get involved
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