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 181 products.
 
Verbena Bonariensis

Verbena bonariensis

Glandularia, Verbena patagonica
Tall heads of bright, eye-catching rosy lavender, adding a tranquil tropical feel to borders. Height: 120-150cm (4-5ft). More info
    • 1 packet (200 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Geranium Pratense Purple Haze

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 seeds)

    • Despatch: Within 2 Days
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    • £0.99
Viola X Williamsiana Singing The Blues

Pansy 'Singing the Blues'

Viola x wittrockiana

This mixture of four enchanting colours, in shades and contrasts of blue, are not just pretty but the most sensational breakthrough in Violas for a decade. They were specifically bred for containers, baskets and ground cover, possessing a unique trailing habit. Above all they are wonderfully fragrant with a gorgeous, pervading sweet scent. Flowers appear in abundance and because they are tolerant to cold and heat, they can be grown all year round. Height: 2-3in Flowers spring/summer.


Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

 More info
    • 1 packet (25 seeds)

    • Despatch: Within 2 Days
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    • £0.69
Oenothera Lemon Sunset

Oenothera 'Lemon Sunset'

Evening Primrose, Sundrops

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: Some parts of these flowers are edible. For more details about edible flowers click here.

 More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
    • SAVE £2.20  
    • £2.89 £0.69
Geranium Wallichianum Buxtons Blue

Geranium wallichianum 'Buxton's Blue'

Geranium wallichianum 'Buxton's Variety', Hardy Geranium, Cranesbill
This is definitely the star of the perennial geranium family producing flowers virtually non-stop from mid summer to early autumn. The flowers themselves are a delight, a gorgeous clear opal, or Nemophila blue with large white centres, against which the dark stamens and dark veining of the petals contrast beautifully. The plant forms an attractive clump with attractive wedge shaped, silky, deeply toothed leaves, making this a very garden worthy plant even when not in flower. It comes quite true from seed and has been given an Award of Garden Merit by the Royal Horticultural Society. Requirements: One of the easiest perennials to cultivate, happy in sun or light shade and any free draining garden soil. More info
    • 1 packet (8 seeds)

    • Despatch:
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    • £1.49
    • Out of stock
Aquilegia X Hybrida Royal Purple

Aquilegia x hybrida 'Royal Purple'

Columbine, Granny's Bonnet, Aquilegia clematiflora, Aquilegia vulgaris var. stellata 'Royal Purple'

 A specially selected spurless form, producing clematis-like flowers of a deep, rich royal purple colour. Aquilegia ‘Royal Purple’ has outstanding garden performance . This hardy perennial columbine is ideal for cottage garden borders and shady woodlands. Height: 60cm (24"). Spread: 40cm (16"). More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
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    • £0.69
Echinacea X Hybrida Magic Box

Echinacea x hybrida 'Magic Box'

Coneflower

One of the most comprehensive mixtures of colours available. Each bloom has been carefully selected and bred by our flower breeders for its stunning form as well as its superior garden performance. The tall colourful flowers look fabulous in borders or in a vase in the house.

 More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Echinacea Purpurea Pink Parasol

Echinacea purpurea 'Pink Parasol'

Coneflower
Pink Parasol has stunning, large, deep purplish-pink blooms, with contrasting orange cones standing proudly above strong stems. Each bloom can reach 7-10cm (3-4in) in diameter compared to other varieties only reaching a diameter of 5-7cm (2-3in). Once established, bushy plants produce clusters of stems adding height to your borders, attracting butterflies and beneficial insects to your garden, as well as making dramatic long lasting cut flowers. Height 90-120cm (3-4ft) More info
    • 1 packet (35 seeds)

    • Despatch: Within 2 Days
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    • £2.49
Achillea Millefolium Cassis

Achillea millefolium 'Cassis'

Yarrow
Many stems with masses of attractive, intense cherry red flowers, over a very long period. Achillea Cassis is a first year flowering perennial, making an excellent border filler and cut flower. More info
    • 1 packet (70 seeds)

    • Despatch: Within 2 Days
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    • £1.49
Achillea Millefolium Summer Berries F2 Hybrid

Achillea millefolium 'Summer Berries' F2 Hybrid

Yarrow
An easy to grow, first year flowering perennial, Achillea Summer Berries is ideal for adding a sumptuous mixture of fruity colours to borders. Achillea Summer Berries makes an excellent cut or dried flower, as well as attracting bees and butterflies to your garden. Height: 60-75cm (24-30in). More info
    • 1 packet (40 seeds)

    • Despatch: Within 2 Days
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    • £2.49
Echinacea Purpurea White Swan

Echinacea purpurea 'White Swan'

Coneflower
Strong honey fragranced flowers in 16 weeks, often with 14+ 10cm (4in) blooms out at once. Long lived for border, bedding or cutting. Height: 45-60cm (18-24in). More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
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    • £2.79
Delphinium Hybridum Dusky Maiden

Delphinium 'Dusky Maiden'

Long, strong, impressive flower spikes in spectacular dusky pink shades, making this superb as a cut flower. Truly outstanding garden performance makes this a must for all perennial borders. Height: 120-150cm (4-5ft).

 More info
    • 1 packet (8 seeds)

    • Despatch: Within 2 Days
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    • £0.99