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Penstemon heterophyllus 'Heavenly Blue' (Penstemon 'Heavenly Blue')

Beginner
skill rating
1 hour care
per year
0.5m
Max height
0.5m
Max spread
2-5 years
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


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


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

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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...

GARDENS WITH THIS PLANT

My Garden
My Garden
Maggie Willis
My Garden
My Garden
sharon parfett
My Garden
My Garden
Robert Kay
My Garden
My Garden
Ruth K
My Garden
My Garden
Anne Adrienne Colley
My Garden
My Garden
Shelagh McIntosh
Back garden
Back garden
wildlife friendly

ARTICLES WITH THIS PLANT

Contemporary valley garden

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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