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 12 products.
 
Erigeron Karvinskianus Profusion

Erigeron karvinskianus 'Profusion'

Fleabane, Mexican Fleabane
Lovely subject for hanging baskets, window boxes, patio tubs. Flowers within 3 months. More info
    • 1 packet (200 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Sunflower maximiliani

Sunflower maximiliani

Helianthus maximiliani, Maximilian Sunflower
Often known as the Maximilian Sunflower, this attractive species produces masses of golden yellow, 7cm (3”) wide blooms all the way up the tall stems, which have a sweet chocolate fragrance. Perennial sunflower Helianthus maximiliani makes a stunning addition to the back of borders and a good late summer food source for both birds and butterflies. Height: 250cm (98”). Spread: 100cm (39”). More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
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    • £2.29
Exotic : Giant Viper's Bugloss (Echium Pininana)

Echium pininana

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

No wonder this is also called Tower of Jewels or 'Pride of Tenerife! Exceptionally tall flower spikes packed with either rose or purple-blue flowers, interspersed with silver-green lanceolate leaves.

 More info
    • 1 packet (25 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.79
Anemone Japonica Mixed

Anemone japonica (Mixed)

Japanese Anemone, Anemone x hybrida, Windflower

 Elegant, late summer flowering perennials, producing their gorgeous, well shaped blooms mainly in rose to pink shades for many weeks and providing the perfect end to the summer. Happy in sun or light shade. Flowers late summer/autumn, Height: 60cm-1.2m (2-4-ft). More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
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    • £3.69
Lathyrus Latifolius Mixed

Lathyrus latifolius (Mixed)

Everlasting Sweet Pea, Perennial Sweet Pea
Conspicuous carmine, rose or white blooms. Covers fence, wall etc. More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
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    • £2.49
Geranium Maderense

Geranium maderense

Giant Herb Robert, Madeira Cranesbill
 Customer Rating
Truly amazing! Resembling a small Palm Tree, with a stout trunk and radiating stems of palmate foliage. This species requires some shelter In the garden, or is perfect for a large pot in the conservatory or the greenhouse border. Velvety, magenta pink flowers are produced in panicles aloft the exotic foliage. Height: 90-150cm (3-5ft). More info
    • 1 packet (10 seeds)

    • Despatch:
    •  
    • £1.49
    • Out of stock
Lathyrus Latifolius Albus White Pearl

Lathyrus latifolius 'White Pearl'

Everlasting Sweet Pea, Perennial Sweet Pea, Lathyrus latifolius 'Albus'
Magnificent, distinctive pearl-like clusters of dazzling white flowers. One of the finest white cut flowers in existance flowering over a long period. They thrive in full sun, love to scramble over tall shrubs, fences etc. and are equally at home on trellises, walls, arbours and pergolas. More info
    • 1 packet (15 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Cobaea Duo

Cobaea (Duo)

Cup And Saucer Vine, Cathedral Bells, Cups And Saucers, Mexican Ivy
 Customer Rating

One packet each of Cobaea scandens and Cobaea scandens alba.
Cobaea scandens - A showy climber for the cool greenhouse, conservatory, and also forming a very decorative screen on trellis or south facing wall in milder areas. The large bell shaped 'cup and saucer' flowers are often 6cm (2½ in) across. Flowers late summer. Climber.
Cobaea scandens alba - A spectacular climbing plant for the summer garden or the conservatory. This very choice creamy white form of Cathedral Bells or The Cup and Saucer Plant comes from Mexico and quickly grows to cover unsightly areas or a wall outdoors, where it can be treated as a summer annual. Alternatively it may be grown in the heated conservatory or greenhouse, where it will continue to flower for many years. Flowers summer. Climbing Height 3-6 metres (10-20ft).

 More info
    • 2 packets - 1 of each variety (13 seeds in total)

    • Despatch: Within 2 Days
    • SAVE £1.49  
    • £5.98 £4.49
Strelitzia Reginae Mandela's Gold

Strelitzia reginae 'Mandela's Gold'

Bird of Paradise, Strelitzia reginae 'Kirstenbosch Gold'

 The rarely-offered, golden-yellow bird of paradise! After 20 years of hand pollination and selection by the Kirstenbosch Botanical Gardens, a small quantity of seed became available in 1994. Since then T&M has tried to introduce this variety into its catalogue. Patience usually pays off and finally we can offer more gardeners the chance of growing and seeing these flamboyant golden-yellow and purple blooms. Plants can take many years to flower from seed. Height: 1.2-1.8m (4-6ft). More info
    • 1 packet (3 seeds)

    • Despatch: Within 2 Days
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    • £6.99
Echium Pininana Alba Snow Tower

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: Within 2 Days
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    • £1.49
Strelitzia Reginae Collection

Strelitzia reginae Collection

Strelitzia reginae 'Dwarf', Strelitzia reginae 'Mandela's Gold', Bird of Paradise

 Collection comprises one packet each of: Reginae Dwarf - Unparalleled beauty of colour and form. Fantastic, exotic flowers justly famous. Grow them in your own greenhouse. One of the most rewarding of plants, it will take quite a bit of abuse and careless handling. Flowers spring. Height: 60-90cm (24-36in). Mandela's Gold - The rarely-offered, golden-yellow bird of paradise! Height: 120-180cm (4-6ft). More info
    • 2 packets - 1 of each variety (10 seeds in total)

    • Despatch: Within 2 Days
    • SAVE £1.49  
    • £11.98 £9.49
Exotic : Giant Viper's Bugloss (Echium Pininana)

Echium pininana - Exotic Seed Collection

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

No wonder this is also called Tower of Jewels or 'Pride of Tenerife! Exceptionally tall flower spikes packed with either rose or purple-blue flowers, interspersed with silver-green lanceolate leaves.

 More info
    • 1 packet (25 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.99