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 28 products.
 

Salvia patens

Gentian Sage

A classic border plant, ideal for adding a cool blue drift to your planting schemes. The attractive, large blue hooded florets are borne on erect stems above toothed foliage. First year flowering, blooms throughout the summer into autumn. Height: 45-60cm (18-24in).
More info
    • 1 packet (15 salvia seeds)

    • Despatch: Within 1 days
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    • £0.99

Datura metel 'Double Blackcurrant Swirl'

Brugmansia, Angels' Trumpet, Downy Thorn Apple

 Customer Rating
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 datura seeds)

    • Despatch: Within 1 days
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    • £3.99 £0.99

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

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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    • £4.99

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

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

Datura metel 'Double Golden Queen'

Brugmansia, 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 datura seeds)

    • Despatch: Within 1 days
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    • £3.99

Datura meteloides 'Evening Fragrance'

Brugmansia, 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 datura seeds)

    • Despatch: Within 1 days
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    • £1.49 £0.99

Catharanthus roseus 'Mediterranean Lilac'

Vinca rosea, Rosy Periwinkle, Madagascar Periwinkle, Cayenne Jasmine

The first of a new breed in trailing Vincas! Specifically for baskets and containers they are early flowering with large, rounded, overlapping petals forming striking, vivid blooms.

More info
    • 1 packet (25 catharanthus seeds)

    • Despatch: Within 1 days
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    • £0.99

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 (4 strelitzia seeds)

    • Despatch: Within 1 days
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    • £4.99

Lisianthius nigrescens

Flower of Death

This rare exotic plant is little known outside its native homeland of Mexico. A choice species, and seldom offered, Lisianthius nigrescens bears long, tubular flowers of the darkest black, on slender, towering stems. This extraordinary perennial makes a dramatic specimen plant and a fascinating talking point that will create interest and wonder at the back of borders. Lisianthius nigrescens is half-hardy but will require winter protection in a frost free environment during the winter months. Height: 180cm (71"). Spread: 50cm (20"). More info
    • 1 packet (20 lisianthius seeds)

    • Despatch: Within 1 days
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    • £3.49

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 asarina seeds)

    • Despatch: Within 1 days
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    • £3.39 £0.99