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Herbaceous Perennial
Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Chalk
Loam
Sand
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
Stem | Flower | Foliage | Fruit | |
Spring | Green | |||
---|---|---|---|---|
Summer | Blue Purple | Green | ||
Autumn | Green | |||
Winter | Green |
Position
- Full sun
Aspect
South–facing or East–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical 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
Correct
- Plant range
- Western N America
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
Suggested planting locations and garden types
- Gravel garden
- Patio and container plants
- Rock garden
- Wildlife gardens
Pruning
Deadhead after flowering
Pests
Diseases
Grey mould, powdery mildews and fungal leaf spot
Get involved
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