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* Seed packet image is for illustration purposes only

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Only £5.49 with every order!

ONLY £2.99 with every order!

48 viola plug plants ONLY £3.99 with orders over £30

Penstemon heterophyllus 'True Blue'Foothill Penstemon, Beard Tongue

Just £2.99

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

This seed is included in the 4 for 3 seed offer.
Don’t forget to check out our whole Seed Range HERE!.

1 packet (40 penstemon seeds)4 for the price of 3 on selected seeds £2.99 Despatch: within 3 Days
Description Sowing More Info Delivery Reviews
Yes, this really is a true blue Penstemon, true from seed! Azure blue trumpet blooms in abundance, with green and grey tinged foliage. An added bonus too - as this charming perennial may be treated as a annual, flowering in its first year. Highly versatile for borders, rockeries, bedding or the patio container.

Useful Links:
How to sow flower seeds
Reasons to buy your seeds from Thompson & Morgan


Patio, Cottage Gardens, Alpine & Rockery, Wildlife Gardens, Cut Flower Garden

Hardy

Full sun

Up to 45cm (17.7in)

Up to 45cm (17.7in)

A little experience

Easy for all

RHS plants for pollinators

1 packet (40 penstemon seeds) (24270)

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Flowering Months

To treat as a perennial cut down the stems to ground level in the autumn and cover with a thick mulch of compost.

Sow from February to early June on the surface of a good seed compost just covering the seed with a thin layer of compost or vermiculite. Early sowings can be treated like Half Hardy Annuals and will flower in their first year. Germination takes 14-30 days at 15-18C (60-65F). Don't exclude light, sealing in a polythene bag after sowing is helpful.

When large enough to handle, transplant the seedlings to boxes or 7.5cm (3in) pots, and grow on in cooler conditions. When well grown, gradually acclimatise to outdoor conditions and plant out in late spring after all risk of frost has passed. Plant 30cm (12in) apart in full sun and well-drained soil.

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 £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 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.

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.

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