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 33 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: By end of February 2016
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    • £0.99

Aconitum carmichaelii

Monkshood, Wolf's Bane, Aconitum fischeri

An imposing long flowering, long lived perennial with pyramids of beautiful 2 inch flowers. Aconitum is an excellent border plant easily grown from seed. Rich blue flower spikes add a unique colour to the garden, held aloft delphinium-like foliage. Aconitum spikes also last as a cut flower.
More info
    • 1 packet (50 aconitum seeds)

    • Despatch: Within 1 days
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    • £0.99

Hellebore (Purple-flowered Christmas Rose)

Helleborus purpurascens

Rarely offered for sale as seed! This exquisite Helleborus produces clumps of robust, leathery foliage along with many large blooms, flushed in shades of purple, pink and even slate grey!

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    • 1 packet (30 hellebore seeds)

    • Despatch: Within 1 days
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    • £0.99

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 aquilegia seeds)

    • Despatch: Within 1 days
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    • £0.99

Catananche caerulea 'Bicolor'

Blue Cupidone, Cupid's Dart

 Customer Rating

This first-year flowering hardy perennial is the rarer white form of the blue Cupid's Dart. White semi-double star-like flowers, occasionally flecked with blue, 5cm (2in), stand upon long wiry stems held well above the neat grey green foliage. Together with the silvery buds, this plant makes an eye-catching cut flower, or border plant. Height: 60-90cm (24-36in).

More info
    • 1 packet (75 catananche seeds)

    • Despatch: Within 1 days
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    • £0.99

Cynara cardunculus

Cardoon

 Customer Rating
The ripening seed heads of Cynara cardunculus are a fantastic combination of bronzes and golds. The stems are thick and sturdy, the foliage is large, serrated and silver and in its own right presents an imposing border plant for most of the year.
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    • 1 packet (18 cynara seeds)

    • Despatch: Within 1 days
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    • £0.99

Lunaria annua

Honesty, Lunaria biennis

This pretty annual Honesty blooms from March to April in rich shades of purple, attracting many butterflies to its nectar-rich blooms. Lunaria annua is very easy to grow, normally self-seeding itself in sunny or shady positions. After flowering it produces masses of long-lasting silvery seed pods. Height: 90cm (35").
More info
    • 1 packet (50 lunaria seeds)

    • Despatch: Within 1 days
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    • £2.99

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.
More info
    • 1 packet (50 malva seeds)

    • Despatch: Within 1 days
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    • £0.99

Malva sylvestris 'Mystic Merlin'

Mallow

A magical back of border plant with many large, silky blooms in shades from rich purple, through mauve, to the highly unusual and elusive blues. Flowers summer. Height: 150-180cm (5-6ft). Flowers in first year. More info
    • 1 packet (40 malva seeds)

    • Despatch: Within 1 days
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    • £0.99

Delphinium x cultorum 'Tall Black Knight'

Tall, robust, candle-like flower spikes packing with attractive, deep blue blooms, each complemented by a striking large black bee in the centre. A stunning addition to any border. Height: 120-150cm (4-5ft).
More info
    • 1 packet (100 delphinium seeds)

    • Despatch: Within 1 days
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    • £2.99

Delphinium grandiflorum 'Summer Nights'

Delphinium chinense

Attractive dwarf plants covered in a blanket of dainty midnight-blue flowers. Flowering in their first year from sowing makes them perfect for bedding borders or containers, providing a colourful display over a long summer period.

More info
    • 1 packet (20 delphinium seeds)

    • Despatch: Within 1 days
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    • £0.69

Eryngium alpinum 'Blue Lace'

Sea Holly, Alpine Eryngo

A spectacular alpinum selection with impressive long lasting clear violet-blue terminal flower heads on stunning blue stems. Makes an eye-catching addition to any border, and an attractive cut flower. Height: 85cm (34in).
More info
    • 1 packet (25 eryngium seeds)

    • Despatch: Within 1 days
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    • £3.29