Thompson & Morgan

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Perennial & Biennial Seeds


Biennials live for 2 years, whereas perennials live for longer. As a general rule, biennial and perennial seeds should be sown in spring, but some can be sown in autumn as well. Many varieties will self-seed after flowering, giving you even more plants!



We have found 114 products.
 

Myosotis sylvatica 'Bobo Mixed'

Forget-Me-Not

Essential spring bedding plants. Forget-me-nots are usually blue, but also found here in pink and white, and all on dwarf, compact plants! A fantastic accessory to spring beds and borders, complementing golden Daffodils and Tulips.
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    • 1 packet (100 myosotis seeds)

    • Despatch: Within 1 days
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    • £1.99 £0.99

Geranium pratense 'Purple Haze'

Hardy Geranium, Meadow Cranesbill

One of the hardy Geranium discoveries of the century! 'Purple Haze' is a stunning plant, producing amazing foliage with a unique bronze-purple hue, a shade rarely seen in hardy Geranium foliage. The leaves are deepest in shade during spring, gradually changing to an attractive deep green with strong purple edging. Even more exciting is the striking contrast of the blooms, perfectly themed in shades of gorgeous violet-mauve. Height: 60-75cm (24-30in).

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    • 1 packet (5 geranium seeds)

    • Despatch: Within 1 days
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    • £0.99

Verbascum x hybrida 'Snow Maiden'

Mullein, Celsia

 Customer Rating

A first class garden plant! Well branched, erect spikes covered in large 4cm (1½in) pure white flowers, over a long period. An incredibly beautiful plant for the back of borders, seldom requiring support.

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    • 1 packet (100 verbascum seeds)

    • Despatch: Within 1 days
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    • £0.99

Echinacea purpurea 'Double Decker'

Coneflower

A very unusual purple-red flowered variety that produces predominantly single flowers in the first growing season, followed by a high percentage of these visually stunning 'twin' flowers in the second season, with the chance that some may even be fully double. These intriguing flowers grace tall, strong stems and make superb long lasting border perennials, attracting many beneficial insects to your garden.
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    • 1 packet (20 echinacea seeds)

    • Despatch: Within 1 days
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    • £0.99

Hollyhock 'Halo Mixed'

Alcea rosea, Althaea rosea

 Customer Rating
Colour that's almost 2 metres high! And now Hollyhocks are even more colourful thanks to new Hollyhock 'Halo Mixed', with its glowing eyes to add contrast. These stunning cottage garden perennials make a beautiful cut flower for a vase indoors and the edible flowers can even be added to salads for an attractive, tasty treat. Recognised by the European Fleuroselect panel of experts with a novelty award too. Height: 180cm (71"). Spread: 60cm (24").

Culinary note: try crystallising the flowers for a tasty cake decoration, or use them to make a delicately flavoured syrup to use with puddings. For more details about edible flowers click here.

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    • 1 packet (25 hollyhock seeds)

    • Despatch: Within 1 days
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    • £0.99

Centranthus 'Star Ruber Mixed'

Valerian, Red Valerian, Pretty Betsy

A beautiful border plant beloved by bees and butterflies. Mixture contains three colours: rose, white and maroon. Plants are lightly fragrant, long flowering and may also be used as a cut flower.
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    • 1 packet (100 centrantus seeds)

    • Despatch: Within 1 days
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    • £0.99

Foxglove 'Apricot'

Digitalis purpurea

 Customer Rating
An outstanding introduction producing large spikes of a lovely shade of Apricot. A most unusual and sought after colour. Excellent for the border in sun or part shade, and very useful as a cut flower. Flowers early summer. Height 1.3-1.5m (4-5ft).
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    • 1 packet (450 foxglove seeds)

    • Despatch: Within 1 days
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    • £0.99

Foxglove 'Pam's Choice'

Digitalis purpurea

One of the best new foxgloves found in recent years. Stout, strong spires of creamy white flowers with attractive throats attractively painted in deepest burgundy. Creates an unforgettable sight when planted en masse in borders. Height 90-150cm (3-5 feet).
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    • 1 packet (500 foxglove seeds)

    • Despatch: Within 1 days
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    • £2.29 £0.99

Penstemon cobaea 'Wedding Bells'

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

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    • 1 packet (50 penstemon seeds)

    • Despatch: Within 1 days
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    • £2.19

Poppy 'Checkers'

Papaver orientale, Oriental Poppy

First year flowering from an early sowing. Poppy Checkers is easy to raise and very rewarding with pure white silky flowers are flanked within by the deepest black cross. Use as a novel cut flower, as well as for the traditional dried seed heads. Height: 60-90cm (2-3ft).
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    • 1 packet (50 poppy seeds)

    • Despatch: Within 1 days
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    • £0.99

Sedum 'Rock Garden Mixed'

Sedum rupestre, Sedum spathulifolium, Sedum album, Sedum aizoon, Sedum reflexum, Stone Orpine, Reflexed Stonecrop, Spoon-leaved Stonecrop, White Stonecrop

Harvest permitting includes: S. reflexion, S. spathulifolium, S. album hybrids, S. aizoon and many others in full foliage and flowering colour range.

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    • 1 packet (300 sedum seeds)

    • Despatch: Within 1 days
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    • £0.99

Foxglove 'Excelsior Hybrid Mixed'

Digitalis purpurea

A most effective and spectacular strain of Foxgloves superb for shady shrub and tree areas, back of borders and excellent for cut flowers. They can really bring the early summer garden alive! Flowers early summer. Height 5ft.
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    • 1 packet (2500 foxglove seeds)

    • Despatch: Within 1 days
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    • £1.99