Thompson & Morgan
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Penstemon cobaea 'Wedding Bells'

Hardy Perennial

A first year flowering perennial, Penstemon cobaea 'Wedding Bells' combines some of the best penstemons from T&M's own breeding programme. Satin, bell-shaped flowers in a variety of bright colours and patterns are carried over a particularly long flowering period, above glossy, semi-evergreen foliage. A fantastic alternative to Antirrhinums (snapdragons) in annual bedding schemes, these compact penstemon plants boast large flowers and superb weather resistance. Easy to maintain, these hardy perennials are also attractive to bees. Height: 50cm (18"). Spread: 45cm (18").

Useful links:

Gardening news: Move over marigolds... new bedding plants fly in the face of tradition

Ideal For:
cottage gardens, wildlife gardens
Flowering Period:
June, July, August, September, October
Sowing Months:
February, March, April
Position:
sun or semi shade
    • 1 packet (50 penstemon seeds)

    •  
    • Despatch: Within 1 days
    • £2.49

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.

Feed and water penstemon plants 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.
Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above.

Despatch: Within 24 hours applies to orders placed online from Sunday to Thursday. Orders placed online on Friday or Saturday will be despatched on Monday. Please note that for Bank Holiday weekends, orders placed Friday to Sunday will be despatched on Tuesday.

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 P&P charge of £1.95.
Orders which include any other products will incur a P&P charge of £4.95.
Where an order includes both packets of seeds and other products a maximum P&P charge of £6.90 will apply - regardless of the number of items ordered.


Please see our Delivery / P&P page for further details and details of any surcharges that may apply to certain destinations.

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