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Penstemon heterophyllus 'Heavenly Blue' (Penstemon 'Heavenly Blue')
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1 hour care
per year
per year
0.5m
Max height
Max height
0.5m
Max spread
Max spread
2-5 years
To maturity
To maturity
Plant details
Botanical name
Penstemon heterophyllus 'Heavenly Blue'
Other names
Penstemon 'Heavenly Blue'
Genus
Penstemon Penstemon
Variety or Cultivar
'Heavenly Blue' _ 'Heavenly Blue' is an upright, bushy, evergreen perennial with lance-shaped, blue-green leaves, and from early summer into autumn, racemes of bell-shaped, deep blue, purple-flushed throats.
Penstemon heterophyllus 'Heavenly Blue' is: Semi evergreen
Habit
Upright, Bushy
Flower
Blue in Spring; Blue in Summer
Foliage
Blue-green in All seasons
How to care
Watch out for
Specific pests
Glasshouse red spider mite , Leaf and bud eelworms , Slugs , Snails Glasshouse red spider mite , Leaf and bud eelworms , Slugs , Snails
Diseases
Generally disease-free.
General care
Pruning
Deadhead after flowering to maintain vigour. In autumn, cut back by 2/3 of plant height to prevent wind damage, leaving 1/3 to protect the crown from frost. Remove all old stems at the base in mid- to late spring once new shoots emerge at ground level.
Propagation methods
Semi-ripe cuttings, Softwood cuttings
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Where to grow
Penstemon heterophyllus 'Heavenly Blue' (Penstemon 'Heavenly Blue') will reach a height of 0.5m and a spread of 0.5m after 2-5 years.
Suggested uses
Beds and borders, Bees (attract & feed bees), City, Coastal, Containers, Cottage/Informal, Drought Tolerant, Prairie planting, Wildlife
Cultivation
Plant in fertile, well-drained soil in full sun with shelter from cold, drying winds and frost. Tolerates light shade. Protect with a dry winter mulch.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Sun
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Penstemon heterophyllus 'Heavenly Blue'
Other names
Penstemon 'Heavenly Blue'
Genus
Penstemon Penstemon
Variety or Cultivar
'Heavenly Blue' _ 'Heavenly Blue' is an upright, bushy, evergreen perennial with lance-shaped, blue-green leaves, and from early summer into autumn, racemes of bell-shaped, deep blue, purple-flushed throats.
Native to
Garden origin
Foliage
Semi evergreen
Habit
Upright, Bushy
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Colour
Flower
Blue in Spring; Blue in Summer
Foliage
Blue-green in All seasons
How to care
Watch out for
Specific pests
Glasshouse red spider mite , Leaf and bud eelworms , Slugs , Snails
Diseases
Generally disease-free.
General care
Pruning
Deadhead after flowering to maintain vigour. In autumn, cut back by 2/3 of plant height to prevent wind damage, leaving 1/3 to protect the crown from frost. Remove all old stems at the base in mid- to late spring once new shoots emerge at ground level.
Propagation methods
Semi-ripe cuttings, Softwood cuttings
Monthly care advice
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Where to grow
Penstemon heterophyllus 'Heavenly Blue' (Penstemon 'Heavenly Blue') will reach a height of 0.5m and a spread of 0.5m after 2-5 years.
Suggested uses
Beds and borders, Bees (attract & feed bees), City, Coastal, Containers, Cottage/Informal, Drought Tolerant, Prairie planting, Wildlife
Cultivation
Plant in fertile, well-drained soil in full sun with shelter from cold, drying winds and frost. Tolerates light shade. Protect with a dry winter mulch.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Partial Shade, Full Sun
Aspect
South, East, West
Exposure
Exposed, Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 10, Zone 9, Zone 8, Zone 7, Zone 6
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Chalky, Loamy, Sandy | Tell us... |
| Soil drainage: | Well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Partial Shade, Full Sun | Tell us... |
| Aspect: | South, East, West | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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Designed by West and South of England designer Amanda Patton MSGD. This garden, set in a valley just outside Bath, was made up of four distinct areas, bearing no relationship to each other, and all… read more
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