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Penstemon 'Sour Grapes'

Hardy Perennial

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

FROM £14.99

96% (6 Reviews)

Its unusual colouring makes it instantly recognisable

Upright spikes of alluring bell-shaped flowers

Easy to grow

Blooms over an exceptionally long period

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Height Up to 60cm (23.6in)
Spread Up to 45cm (17.7in)

Hardy Perennial

cottage gardenswildlife gardens

Sun or semi shade

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Flowering Months

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Description
Its unusual colouring makes Penstemon 'Sour Grapes' instantly recognisable. This well loved variety bears upright spikes of alluring bell-shaped flowers in a peculiar blend of pink and blue, being neither one nor the other. This hardy semi-evergreen perennial is easy to grow, blooming over an exceptionally long period. Penstemons make a colourful contribution to herbaceous borders and wildlife areas where they will attract bees and other pollinators throughout the summer. Height: 60cm (24"). Spread: 45cm (18").

Plant height and spread is seasonal therefore we list by pot size rather than a defined plant size. The height and spread of the plant delivered will vary depending on the season, meaning arrival images are an indication only.

Show Codes

2 x 1 litre potted plants (T64533P)

1 x 1 litre potted plant (64532)

1 x 9cm Potted Plant (KB6583)

1 x 3 Litre Potted Plant (KA4458)

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 £6.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £7.99 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. While the majority of our nursery plants cope well with slight delays in intransit, sadly, the time it takes to deliver to certain locations in the UK means that we can't guarantee this for some of our smaller plug products and tender bedding and vegetable lines, which do not respond well to the extra journey time. So regretfully while we offer the majority of our live plant offering nationwide, we are unable to ship plugs, begging plants and tender vegetable 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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Penstemon 'Sour Grapes'

Penstemon 'Sour Grapes'

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From£14.99

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