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Abundant Sky Blue Blooms - Penstemon Heavenly Blue produces elegant spires of soft sky blue, bell-shaped flowers that bloom repeatedly from early summer into autumn. The tall flower spikes add graceful vertical interest to borders and attract pollinators such as bees and butterflies.
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Ideal for Sunny Borders & Cottage Gardens - This hardy perennial thrives in full sun and well-drained soil, making it perfect for mixed borders, cottage gardens, and wildlife-friendly planting schemes. Its airy growth habit pairs beautifully with ornamental grasses and other summer flowering perennials.
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Low Maintenance & Long Flowering - Heavenly Blue is easy to grow and relatively drought tolerant once established. Regular deadheading encourages continuous flowering, providing long-lasting colour throughout the growing season with minimal care.
Plant genus Penstemon
Common Name Beard Tongue
Plant type Ornamental Grass, Bedding Plants
Foliage type Herbaceous, Perennial
Hardiness Frost Hardy
Soil acidity Neutral
Planting aspect North Facing, East Facing, West Facing, Partial Shade or Sun
Flower colour Blue
Leaf colour Green
Growth Rate Moderate
Edible Use No
Planting Companion Salvia, Nepeta, Geranium
Light Required Full Sun
Watering Water regularly after planting until the roots are established. Once settled in, the plant is relatively drought tolerant and usually only needs extra water during prolonged dry spells. Plants grown in containers will need more frequent watering than those growing in the ground.
Best Growing Conditions Grow in partial shade to gentle sun in fertile, well-drained loam. Choose a position with good airflow and enough space for the plant to reach its mature size. Mulch after planting and keep the root zone free from prolonged waterlogging, particularly through winter.
Christmas Tree Delivery
FREE on all Pot Grown Trees (2.5ft & over)
*Mainland UK only
*Northern Ireland delivery unavailable
Standard Delivery (2-4 working days) - Evri
£4.99 on orders under £40
FREE on orders over £40
*Mainland UK only
Next Working Day Delivery - Evri
£6.99 on orders under £70
FREE on orders over £70
Order by 1pm Mon-Fri
Premium Standard Delivery (2-4 working days) - Royal Mail
For customers who prefer an alternative carrier, Royal Mail is offered as a premium alternative to our standard Evri service.
£7.99 on all orders
Premium Next Working Day Delivery - Royal Mail
£8.99 on all orders
*Mainland UK only
Northern Ireland & Islands Delivery (2-5 working days)
£6.99 on all orders
Top tip
Key Features
Season of Interest
Penstemon - 'Heavenly Blue'
Semi-Evergreen Perennial
£9.99
Unit price perOut of stock
-
Abundant Sky Blue Blooms - Penstemon Heavenly Blue produces elegant spires of soft sky blue, bell-shaped flowers that bloom repeatedly from early summer into autumn. The tall flower spikes add graceful vertical interest to borders and attract pollinators such as bees and butterflies.
-
Ideal for Sunny Borders & Cottage Gardens - This hardy perennial thrives in full sun and well-drained soil, making it perfect for mixed borders, cottage gardens, and wildlife-friendly planting schemes. Its airy growth habit pairs beautifully with ornamental grasses and other summer flowering perennials.
-
Low Maintenance & Long Flowering - Heavenly Blue is easy to grow and relatively drought tolerant once established. Regular deadheading encourages continuous flowering, providing long-lasting colour throughout the growing season with minimal care.
Plant genus Penstemon
Common Name Beard Tongue
Plant type Ornamental Grass, Bedding Plants
Foliage type Herbaceous, Perennial
Hardiness Frost Hardy
Soil acidity Neutral
Planting aspect North Facing, East Facing, West Facing, Partial Shade or Sun
Flower colour Blue
Leaf colour Green
Growth Rate Moderate
Edible Use No
Planting Companion Salvia, Nepeta, Geranium
Light Required Full Sun
Watering Water regularly after planting until the roots are established. Once settled in, the plant is relatively drought tolerant and usually only needs extra water during prolonged dry spells. Plants grown in containers will need more frequent watering than those growing in the ground.
Best Growing Conditions Grow in partial shade to gentle sun in fertile, well-drained loam. Choose a position with good airflow and enough space for the plant to reach its mature size. Mulch after planting and keep the root zone free from prolonged waterlogging, particularly through winter.
Christmas Tree Delivery
FREE on all Pot Grown Trees (2.5ft & over)
*Mainland UK only
*Northern Ireland delivery unavailable
Standard Delivery (2-4 working days) - Evri
£4.99 on orders under £40
FREE on orders over £40
*Mainland UK only
Next Working Day Delivery - Evri
£6.99 on orders under £70
FREE on orders over £70
Order by 1pm Mon-Fri
Premium Standard Delivery (2-4 working days) - Royal Mail
For customers who prefer an alternative carrier, Royal Mail is offered as a premium alternative to our standard Evri service.
£7.99 on all orders
Premium Next Working Day Delivery - Royal Mail
£8.99 on all orders
*Mainland UK only
Northern Ireland & Islands Delivery (2-5 working days)
£6.99 on all orders
Top tip
Key Features
Season of Interest