Call us today: 0333 400 0033 Calls cost no more than the national rate including calls from mobiles

100% Satisfaction Guarantee

Track Your Order

Award Winning Varieties

Voted Best Online Retailer

Our Customers Rate Our Excellent Service

Home>Flowers, Plants & Shrubs>Plants>Potted Hardy Plants

Penstemon 'Sour Grapes'

4 Options from £9.99

1 x 2 litre potted penstemon plant £12.99 Despatch: by end of July
2 x 2 litre potted penstemon plants £19.99 Despatch: by end of July
1 x 1 litre potted penstemon plant £9.99 Out of Stock
2 x 1 litre potted penstemon plants £14.99 Out of Stock
Description How to Grow More Info Delivery
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").

Cottage Gardens, Wildlife Gardens


Sun or semi shade

60cm (23.6in)

45cm (17.7in)

1 X 2 Litre Potted Penstemon Plant (T65213)
2 X 2 Litre Potted Penstemon Plants (T65214P)
1 X 1 Litre Potted Penstemon Plant (T64532)
2 X 1 Litre Potted Penstemon Plants (T64533P)

Flowering Months
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.
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.


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 and will be stated on the product page or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £1.95.

Orders which include any other products will incur a delivery charge of £4.95.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.90 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 details of any surcharges that may apply to certain destinations.

Satisfaction Guaranteed

For your complete peace of mind, our Home and Garden products may be returned to us within 30 days of purchase for a refund of the purchase price. Items must be returned unused, at your cost and in mint condition. All items carry a manufacturer's 12 month defects warranty.


Customer's also bought