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.
 
Salvia coccinea 'Summer Jewel Red'

Salvia coccinea 'Summer Jewel Red'

Scarlet Sage
  • NEW in 2013
  • Flowers all summer until the first frosts
Applauded by Fleuroselect judges, Salvia coccinea 'Summer Jewel Red' is quicker to flower and more compact than other dwarf salvias. This free flowering variety bears its long lasting scarlet blooms above compact aromatic foliage. Scarlet Sage makes a stunning addition to borders and containers where it will attract pollinating insects to its fiery blooms. Although perennial, Salvia coccinea is half hardy and best treated as an annual in the UK. Height: 45cm (18"). Spread: 30cm (12"). More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.49
Silene Laciniata Jack Flash

Silene laciniata 'Jack Flash'

Catchfly, Campion
Wow! What a stunning perennial! Easy to grow and sure to catch some admiring glances. Attractive bright red, starburst blooms borne on slender stems. Goes on flowering over a very long period. More info
    • 1 packet (15 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
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
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    • £3.79
Canna Indica T&M Hybrids

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 seeds)

    • Despatch: Within 2 Days
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    • £1.49
Kniphofia Hirsuta Traffic Lights

Red Hot Poker 'Traffic Lights'

Kniphofia hirsuta, Torch Lily
An intriguing dwarf red hot poker with unusual red, amber and green flower spikes. First year flowering, adding interest to borders and containers. Height: 30-40cm (12-16in). *Sow Sept/Oct to flower the following season. More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
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    • £3.29
Kniphofia Species Mixed

Red Hot Poker 'Species Mixed'

Kniphofia, Torch Lily

 An exclusive blend of mixed species, including a complete spectrum of colours, heights and different flower spikes. Colours ranging from yellows, reds, oranges and bronze with some having an unusual hint of green. Ideal for brightening any herbaceous border. Height: 75-120cm (30-48in). More info
    • 1 packet (25 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.49
Bird Of Paradise - Dwarf

Strelitzia reginae (Dwarf)

Bird of Paradise

 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). More info
    • 1 packet (7 seeds)

    • Despatch: Within 2 Days
    •  
    • £4.99
Agastache Aurantiaca Fragrant Mixed

Agastache aurantiaca 'Fragrant Mixed'

Hummingbird Mint
A truly amazing display of tall, brightly coloured spikes of tasselled florets appear to burst out like flames from the lanced and highly perfumed foliage. Very quick and easy to grow, this lovely perennial will enhance your borders and containers, whilst its balmy fragrance will attract insects away from your summer patio! Excellent first year flowering variety. Height: 50-60cm (20-24in). More info
    • 1 packet (60 seeds)

    • Despatch: Within 2 Days
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    • £2.29
Agastache Aurantiaca Apricot Sprite

Agastache aurantiaca 'Apricot Sprite'

Hummingbird Mint
Never before has flower power been experienced from a border plant of this kind. A staggering display of apricot spikes of tasselled florets, erupting like flames from the laced, richly fragrant foliage. Very quick growing, excellent in bedding, borders and containers. Bred and selected by T&M for its dwarf, compact habit, and was awarded a Fleuroselect Quality Mark. All this and it also flowers in its first year from seed. More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
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    • £2.69
Asarina Purpusii Victoria Falls

Asarina purpusii 'Victoria Falls'

Maurandya

 Vibrant cerise-purple antirrhinum-like flowers, clasped in lime-green bracts, cascade from delicately arching stems, that grow to 45cm (18in). This half-hardy perennial will flower from early May until cut back by frost. Non-climbing, use in baskets, containers, and window boxes. More info
    • 1 packet (20 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
Echium Fastuosum

Echium fastuosum

Echium candicans, Pride of Madeira
 Customer Rating
Native of the Canary Islands. Height: 60-120cm (2-4ft). More info
    • 1 packet (25 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.49
Asarina Scandens Jewel Mixed

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 seeds)

    • Despatch: Within 2 Days
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    • £1.49
Datura Metel Double Golden Queen

Datura metel 'Double Golden Queen'

Angels' Trumpet, Downy Thorn Apple

 A dynamic border and container plant with large, beautifully double, frilled flowers of canary yellow. The many flowers are earlier than most varieties and will continue through to frosts. Makes a stunning conservatory plant too. Flowers mid to late summer. Height 140cm (5 feet). More info
    • 1 packet (8 seeds)

    • Despatch: Within 2 Days
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    • £3.99
Datura Meteloides Evening Fragrance

Datura meteloides 'Evening Fragrance'

Datura inoxia, Angels' Trumpet, Downy Thorn Apple

 Huge and heavily fragrant pure white trumpet flowers, with a soft lavender picotee edge, 20cm (8in) long and 10-15cm (4-6in) across, hang from tree-like plants, with soft, slate-blue foliage. Perfect for growing in tubs, containers, on patios or sheltered corners close to the house where the evening perfume can be appreciated. Despite their exotic appearance they are relatively tough under windy and rainy conditions, adapting to many soil types. Height: 90-120cm (36-48in), spread 90-95cm (36-38in). More info
    • 1 packet (8 seeds)

    • Despatch: Within 2 Days
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    • £1.49
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
Datura Metel Double Blackcurrant Swirl

Datura metel 'Double Blackcurrant Swirl'

Angels' Trumpet, Downy Thorn Apple

 A dynamic border, container or conservatory plant with large, beautifully double frilled flowers of blackcurrant and lilac-mauve. The many flowers are earlier than most and continue through to frosts outdoors. Flowers mid summer-autumn. Height 1.4m. (5ft) More info
    • 1 packet (15 seeds)

    • Despatch: Within 2 Days
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    • £3.99
Strelitzia Nicholai

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

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
Bird of Paradise - Exotic Seed Collection

Strelitzia reginae (Dwarf) - Exotic Seed Collection

Bird of Paradise

 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). More info
    • 1 packet (7 seeds)

    • Despatch: Within 2 Days
    •  
    • £4.99
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