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 48 products.
 

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).

More info
    • 1 packet (5 geranium 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.

More info
    • 1 packet (25 hollyhock seeds)

    • Despatch: Within 1 days
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    • £0.99

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).
More info
    • 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

Rudbeckia occidentalis 'Green Wizard'

Western Coneflower

A very curious and extraordinary plant for the back of borders. Bright green sepals, where most plants have petals and a central, almost black cone. An unusual fresh cut flower, long lasting in water, or use in dried arrangements. Easy to grow, quickly forming a good sized plant with plenty of lush green foliage and always a talking point. Flowers summer. Height: 120-152cm (4-5ft). More info
    • 1 packet (30 rudbeckia seeds)

    • Despatch: Within 1 days
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    • £0.99

Malva sylvestris 'Zebrina'

Mallow

 Customer Rating
An easily raised perennial thriving in sun or part shade and producing strong, erect stems crammed with white to pink flowers with purple, almost black 'flamed' markings. Easy, thriving in most soils. A magnificent display. Flowers all summer. Flowers in first year.
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    • 1 packet (50 malva seeds)

    • Despatch: Within 1 days
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    • £0.99

Hollyhock 'Chater's Double Icicle'

Alcea rosea, Althaea rosea

A classic cottage Hollyhock. Spectacular, large, crystal white, fully double, powder-puff blooms grace tall strong stems from mid summer until autumn. Adds height and a touch of style to the back of perennial or cottage garden borders. Especially effective when planted in groups. Height 1.5-1.8m (5-6ft).

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.

More info
    • 1 packet (100 hollyhock seeds)

    • Despatch: Within 1 days
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    • £2.99 £0.99

Arum Lily

Zantedeschia aethiopica, Calla Lily

A soothing sight by the waterside, in moist borders or large containers. These robust plants produce glossy foliage shooting like arrows from the base, then from late spring to mid-summer, the beautiful, pure white Arum Lily blooms become a sparkling attraction. Hardy with dry mulch winter protection. More info
    • 1 packet (20 arum seeds)

    • Despatch: Within 1 days
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    • £0.99

Hollyhock 'Nigra'

Alcea rosea, Althaea rosea

 Customer Rating
Tall strong stems bearing chocolate maroon flowers, becoming almost 'black' towards the centre. This is a unique variety creating an impressive impact against most backgrounds. Flowers mid to late summer. Height 5ft.

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.

More info
    • 1 packet (50 hollyhock seeds)

    • Despatch: Within 1 days
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    • £0.99

Geranium 'Reflections'

Hardy Geranium, Cranesbill

An increasingly popular cottage garden and border plant now available from seed in this exclusive designer mixture. Only large flowered, border varieties have been selected in shades of blue, purple, pink and white, including 'Splish Splash'T, a striking blue and white bicolour. Without doubt the cheapest way to grow a wonderful range of colours. Flowers early to mid summer. Heights range from 30-60cm (12-24in). More info
    • 1 packet (10 geranium seeds)

    • Despatch: Within 1 days
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    • £3.99

Oenothera 'Lemon Sunset'

Evening Primrose, Sundrops

 Customer Rating

An exquisite Evening Primrose with beautiful 10cm (4in) soft-yellow flowers that mature by changing to an attractive sunset-red. Ideal for adding height to borders, as well as a delicate evening fragrance to your garden.

Height 90-100cm (36-40in).


Culinary note: Add petals to any salad to add a splash of colour with a lettuce-like flavour. For more details about edible flowers click here.

More info
    • 1 packet (30 oenothera seeds)

    • Despatch: Within 1 days
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    • £0.99