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 22 products.
 

Commelina dianthifolia

Bird-bill Day Flower, Widow's Tears

 Customer Rating

A very rare plant indeed. This is one of the few plants with such intense blue flowers and that will also perform well in the garden. Flowering in its first year with 2.5cm (1in) gentian blue flowers, it then produces tubers and springs back to life the following year with an unceasing display of blooms. Wonderful in containers, rock gardens and the border (regardless of soil conditions). Hardy down to -8/-10C. Flowers summer. Height 15-30cm (6-12in.)

More info
    • 1 packet (25 commelina seeds)

    • Despatch: Within 1 days
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    • £0.99

Tropaeolum speciosum

Flame Nasturtium, Flame Flower, Flame Creeper

Flame Flower. Gorgeous scarlet flowered climber. Climbs to 180-300cm (6-10ft).
More info
    • 1 packet (10 tropaeolum speciosum seeds)

    • Despatch: Within 1 days
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    • £4.69

Canna indica 'T&M Hybrids'

Indian Shot Plant

 Customer Rating
Shades of yellow, red and cream with pretty bronze or green foliage. Sow early.
More info
    • 1 packet (15 canna indica seeds)

    • Despatch: Within 1 days
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    • £0.99

Cineraria 'Jester Scarlet'

Pericallis x hybrida, Cineraria cruentus, Cineraria x hybrida, Florists' Cineraria, Senecio x hybridus

A really striking bicolour which is dwarf and uniform in appearance, offering a carpet of scarlet-copper flowers with a distinct pure white centre. Height: 20-25cm (8-10in).

More info
    • 1 packet (25 cineraria seeds)

    • Despatch: Within 1 days
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    • £0.99

Calceolaria 'Sunset Mixed'

Slipper Flower, Pocketbook Plant, Pouch Flower, Slipperwort

Three stunning colours for summer bedding and containers, including copper-orange and red, rich-red, yellow and scarlet. Bushy habit with lots of short stemmed flowers over a long period. Frost hardy. Early sowing recommended.

Height: 15-20cm (6-8in)

More info
    • 1 packet (35 calceolaria seeds)

    • Despatch: Within 1 days
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    • £0.99

Geranium 'Summer Showers Burgundy'

Pelargonium peltatum, Ivy-leaved Geranium, Ivy-leaved Pelargonium

Presenting the first burgundy flowered ivy geranium, true from seed! Grown in containers, baskets or bedding even in hot weather - the strong, well branched, non interlocking plants hold six to eight large florets.
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 1 packet (6 geranium seeds)

    • Despatch: Within 1 days
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    • £0.99

Gerbera jamesonii 'T&M Mixed' F2 Hybrid

Barberton Daisy, Transvaal Daisy

Fast growing and early to flower, this special T&M blend of large- bloomed gerbera make spectacular house plants. Perfect for the patio in summer and a sunny windowsill or glasshouse during the cooler months, they'll provide months of vibrant colour. The flowers are of the very best quality and make excellent cut flowers. Height: 30-40cm (12-16"). More info
    • 1 packet (30 gerbera seeds)

    • Despatch: Within 1 days
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    • £2.69

Geranium 'Horizon Pink Ice' F1 Hybrid

Pelargonium x hybrida, Zonal Geranium, Zonal Pelargonium

Striking pink geranium. These robust plants are very bushy and free-flowering, creating an eye-catching display in borders or containers. Sow from January to mid-March to produce flowering plants by early summer. 30-35cm (12-14in)
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 1 packet (6 geranium seeds)

    • Despatch: Within 1 days
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    • £0.99

Asarina scandens 'Jewel Mixed'

Maurandya scandens

Sophisticated climber, masses of 1½in indigo to violet blue, pink or pure white flowers. Quick to bloom from an early sowing. Ideal for the cold greenhouse or conservatory. One of the longest flowering annuals, in bloom untill Christmas if there is no hard frost or in the greenhouse during winter. Climbs to 120-240cm (4-8ft). More info
    • 1 packet (30 asarina seeds)

    • Despatch: Within 1 days
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    • £0.99

Geranium 'World's Top Six Mix'

Pelargonium, Zonal Geranium, Zonal Pelargonium

From the worlds's top geranium breeder 6 of their finest varieties. Each is an 'eyecatcher', exquisite in colour, ultra early, beautiful in form and size of bloom, and where possible has strikingly zoned foliage. They represent the very pinnacle of achievement in the breeders art. Suitable for bedding, border, pot plants, baskets and tubs. Contains 6 separately labelled inner packets each containing 5 seeds.
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 1 packet (30 geranium seeds)

    • Despatch: Within 1 days
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    • £9.99

Geranium 'Horizon Coral Spice' F1 Hybrid

Pelargonium x hortorum, Zonal Geranium, Zonal Pelargonium

A gorgeous new warm colour in geraniums. Large, well rounded, bright coral flower heads above lightly zoned foliage. With vigorous performance, it will flower nonstop until first frosts.
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 1 packet (6 geranium seeds)

    • Despatch: Within 1 days
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    • £0.99

Sarracenia species 'New Hybrids Mixed'

Pitcher Plant

Seemingly innocent, the leaves of the pitcher plant have evolved into water-filled funnels that hide a sinister purpose. These intriguing carnivorous plants devour insects to improve their diet and counter poor nitrogen levels in the soils of their natural habitats. Lured by the promise of sweet nectar-like secretions on the lip of each pitcher, their victims are met by a slippery footing and tumble to a watery death deep within each funnel. Endlessly fascinating, Sarracenia species 'New Hybrids Mixed' make a captivating talking point for the greenhouse, conservatory or a windowsill indoors. Plants will be mature enough to catch insects after 2 - 3 years. Height: 30cm (12"). Spread: 20cm (8"). More info
    • 1 packet (15 sarracenia seeds)

    • Despatch: Within 1 days
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    • £4.99