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 68 products.
 

Strelitzia nicolai

Giant White Bird of Paradise

A rarely offered robust species of Black Bird of Paradise. Beautiful bird-like blooms In white with purple - blue can take many years to bloom. Meanwhile the large exotic sword - like foliage makes a superb container plant in a conservatory. More info
    • 1 packet (7 seeds)

    • Despatch: Within 2 Days
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    • £1.49

Echium pininana alba 'Snow Tower'

Tower of Jewels, Giant Viper's Bugloss, Tree Echium, Echium pinnifolium

 Customer Rating
Rare white-flowered form of this popular garden giant! The cascades of tightly-packed florets appear in the second year from the silver-green rosette and can reach an incredible height.
More info
    • 1 packet (15 seeds)

    • Despatch:
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    • £1.49
    • Out of stock

Cyclamen persicum grandiflorum 'Victoria'

Florist's Cyclamen, Persian Cyclamen

 Customer Rating
One of the most eye-catching. Grown also for cutting when it will last 14 days in water. Height: 23-30cm (9-12in).
More info
    • 1 packet (10 seeds)

    • Despatch: Within 2 Days
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    • £4.99

Morina longifolia

Whorlflower

This Himalayan native makes a strong yet delicate addition to borders. Its prickly, aromatic foliage appears beneath tall pagoda-like stems, with whorls of long white tubular flowers, which eventually change to rose then crimson as they mature. Flowers from mid to late summer. Once the blossoms have finished, the tall green stems can be used as spectacular dried flower arrangements. Height: 60-90cm (2-3ft). More info
    • 1 packet (10 seeds)

    • Despatch:
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    • £1.49
    • Out of stock

Snail Vine

Vigna caracalla, Phaseolus caracalla, Snail Flower, Snail Bean, Corkscrew Flower

 Customer Rating
This quick growing, evergreen twining climber is a close relative to the runner bean, grown for its pendants of twisted flowers, like coiled snail shells, up to 5cm (2”) across. The fascinating summer flowers are followed by cylindrical green fruits in late autumn. Requiring a minimum temperature of 15°C (59°F), Vigna caracalla is best grown in patio containers that can be moved indoors to a heated greenhouse or conservatory for the winter. Alternatively, grow snail vines outdoors as an annual. Height: 6m (20’). Spread: 2m (6’).
More info
    • 1 packet (4 seeds)

    • Despatch: Within 2 Days
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    • £4.99

Penstemon digitalis 'Husker Red' - Kew Collection Seeds

Beard Tongue

A plant collector's item for decades. Husker's Red is an unusual Penstemon offering maroon-red , occasionally bronze-green foliage when grown from seed. This is coupled with contrasting spikes of blushed pink flowers making useful late summer colour for borders.Height: 50-75cm (20-30in).
More info
    • 1 packet (40 seeds)

    • Despatch: Within 2 Days
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    • £2.99

Nepeta cataria ssp. citrina

Lemon Catmint, Nepeta cataria 'Citriodora'

Quite unlike ordinary catmint, handle or squeeze the leaves and they give off a rich lemony fragrancy which pervades the garden with rich flowery perfume on still, warm summer evenings. It's easy to grow and can be treated as either annual or perennial making a good border or summer hedge plant. Fashion conscious cats are taking it up in droves as the 'in' catmint to brush-up against. 'William' who's enthusiasm for catmint has not diminished since his last starring role amongst T&M's ordinary catmint 11 years ago, was persauded (on a full stomach) to pose against these lemons so that you would know about his new found catmint fragrance delight 'Lemon Scented Catmint'.

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

More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
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    • £2.49