Out of Stock
Height Up to 50cm (19.7in)
Spread Up to 45cm (17.7in)
cottage gardenswildlife gardens
Sun or semi shade
3 Options From£6.99
2 Options From£11.99
1 packet (50 penstemon seeds) (49370)
Sow Penstemon seeds indoors or under glass from February to April on the surface of a good quality seed compost and cover with a very fine sprinkling of compost or vermiculite. Place the seed tray in a propagator at a temperature of 15-20C (59-68F) or seal inside a clear polythene bag until germination which can take 1-4 months. Keep the compost damp but not wet and do not exclude light as this helps germination.
When seedlings are large enough to handle, transplant into 7.5cm (3") pots or module trays and grow penstemon plants on in cooler conditions. When all risk of frost has passed, gradually acclimatise to outdoor conditions over 7 – 10 days before planting outdoors. Plant penstemons at a distance of 30cm (12") apart on fertile, well drained soil in a sunny or semi-shaded position. 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 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.
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