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Penstemon heterophyllus 'Heavenly Blue'

Hardy Perennial

What is Hardy Perennial?
A plant that lives for more than two years.
Capable of withstanding outdoor winter temperatures down to -15C.

Lavender blue flower spikes in summer

Tough and reliable perennial

Remain semi-evergreen throughout winter

Fulfilled and sold by Thompson & Morgan

Choose available pack sizes:

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Please note: This product cannot be delivered outside the United Kingdom.

Height Up to 50cm (20in)
Spread Up to 50cm (20in)

Hardy Perennial

cottage gardenswildlife gardens

sun or semi shade

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
Flowering Months

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Description
Rich blue, bell-shaped flowers bear purple tinged throats that intermittently show pinker in certain conditions. Penstemon heterophyllus ‘Heavenly Blue’ is a tough, hardy perennial with a mound forming habit, perfect for attracting an array of beneficial insects to the garden. The blue-green semi-evergreen leafy stems make this a fantastic plant for placing at the front of a border, requiring only light pruning in autumn. Height and spread: 50cm (20").


1 x 9cm potted penstemon plant (KC0776)

How to Grow
Grow penstemon in a sunny or semi shaded position on fertile, well drained soil. Penstemons can tolerate dry soils once established but dislike heavy soils that are particularly cold and wet in winter. Improve heavy soils by adding plenty of coarse grit prior to planting.
More Info
Feed and water penstemons regularly until they are fully established. Once established they are reasonably tolerant of drought and will require little maintenance. Deadhead faded penstemon flowers to maintain the plant's vigour and encourage further blooms to be produced. In cold areas apply a dry mulch of bark chips of straw around the crown of each plant in autumn. Leave the old foliage intact until spring to protect plants during winter.
Delivery

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £2.99.

Orders which include any other products will incur a delivery charge of £4.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.99 will apply - regardless of the number of items ordered.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.

Thompson & Morgan strives to ensure that all its plants are delivered to you in the perfect condition for planting. Sadly, the time it takes to deliver to certain locations in the UK means that we can't guarantee this, so regretfully we are unable to ship live plants to the following areas: HS, IV41-IV49, IV51, IV55-56, KW15-KW17, PA34, PA41-48, PA60-PA78, PA80, PH40-PH44, TR21-TR24, ZE1-ZE3

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