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 339 products.
 

Pansy 'True Blue'

Viola x wittrockiana

Brilliant, pure sky blue flowers blending magnificently ,with herbaceous and low growing shrubs and conifers or contrast with yellow, silver and white. Medium- large flowers in great profusion from spring to late summer and autumn.

Culinary note: Some parts of these flowers are edible. The crystallised petals are great decorations for cakes and cookies, or they can be added straight to green salads for an injection of colour. For more details about edible flowers click here.

More info
    • 1 packet (40 pansy seeds)

    • Despatch: Within 1 days
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    • £0.99

Saponaria ocymoides

Tumbling Ted, Rock Soapwort

Spreading rockery, or paving plant, myriads of ½in pink flowers.

More info
    • 1 packet (25 saponaria seeds)

    • Despatch: Within 1 days
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    • £0.99

Chrysanthemum x koreanum 'Fanfare Improved' F1 Hybrid

Chrysanthemum x grandiflorum, Florist's Chrysanthemum

The cooler it is the earlier it blooms continuing till hard frost. Double pom-pom, 3in flowers on semi-dwarf plants. Magnificent cut flower.


Companion planting: Try growing Chrysanthemums with chives, whose aromatic leaves will deter aphids.


Useful links:

Companion Planting

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    • 1 packet (40 chrysanthemum seeds)

    • Despatch: Within 1 days
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    • £0.99

Gaillardia x grandiflora 'Arizona Red Shades'

Blanket Flower

 Customer Rating
  • First red gaillardia from seed
A spectacular new dwarf Blanket Flower with a long-flowering period and superb garden performance. Flowering in their first year, the fiery red blooms sit neatly above uniform, well-branched plants throughout summer and well into autumn. Gaillardia x grandiflora 'Arizona Red Shades' is undemanding, providing fabulous colour whatever the weather. Perfect for containers or filling gaps in the front of borders. Height: 30cm (12"). Spread: 45cm (18").
More info
    • 1 packet (20 gaillardia seeds)

    • Despatch: Within 1 days
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    • £2.99

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)
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    • 1 packet (15 datura seeds)

    • Despatch: Within 1 days
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    • £3.99 £0.99

Verbascum x hybrida 'Banana Custard'

Mullein, Celsia

A fantastic new Verbascum! Strong, erect spikes literally packed with very large 2in. flowers of brightest, dazzling two-tone yellow. A glowing, valuable back of border, cottage garden plant. Remove spent stems to encourage a second flush of flowers. Height: 150-180cm (5-6ft). More info
    • 1 packet (40 verbascum seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

Primula Candelabra Hybrids

An exciting wide ranging mix of these fascinating Primulas which have spikes of very delicate florets appearing in whorls up the stem in a wide range of colours. Thrives in sun or shade. Height: 30-60cm (12-24in). More info
    • 1 packet (80 primula seeds)

    • Despatch: Within 1 days
    •  
    • £3.99

Hollyhock 'Good Golly Miss Holly'

Alcea rosea, Althaea rosea

Towering stems are clothed from bottom to top in vibrant, bicoloured flowers. From a competition launched in Garden News, this stunning new variety, Hollyhock 'Good Golly Miss Holly', was named by reader Mary Trusler, and chosen from over 5000 entries. Height: 180cm (71"). Spread: 60cm (24"). More info
    • 1 packet (20 hollyhock seeds)

    • Despatch: Within 1 days
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    • £2.99

Pansy 'Black Moon' F1 Hybrid

Viola x wittrockiana

You may have heard this claim before, but this Pansy truly represents one of the most impressive black flowers in cultivation today. Bushy, compact plants bearing medium sized flowers, so black they shine like velvet. Height: 15-20cm (6-8 in).

Culinary note: Some parts of these flowers are edible. The crystallised petals are great decorations for cakes and cookies, or they can be added straight to green salads for an injection of colour. For more details about edible flowers click here.

More info
    • 1 packet (25 pansy seeds)

    • Despatch: Within 1 days
    •  
    • £2.89 £0.99

Foxglove 'Pam's Split'

Digitalis purpurea

A spectacular selection from Digitalis Pam's Choice. This variety is slightly shorter and is multi-stemmed from the base, producing a longer-lasting and impressive display of white blooms with speckled throats. Each flower of Digitalis Pam's Split has an unusual 'split petal' effect, giving them a slightly ruffled look. Eye-catching in borders or cottage gardens. Digitalis Pam's Split will grow in any garden soil in full sun or part shade.
More info
    • 1 packet (30 foxglove seeds)

    • Despatch: Within 1 days
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    • £2.99

Campanula medium (Mixed)

Canterbury Bells, Bellflower

 Customer Rating
Masses of bells in an astonishing range of blues, whites and pinks. A gentle reminder of the cottage garden days. Flowers summer. Height 90-120cm (3-4ft).
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    • 1 packet (850 campanula seeds)

    • Despatch: Within 1 days
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    • £2.29

Pansy 'Bingo Deep Purple' F1 Hybrid

Viola x wittrockiana

An excellent Pansy for winter/spring flowering. Rich, deep purple petals with a central yellow eye form large 7.5cm (3in) flowers on uniform plants. They are early to bloom and perform well in a wide range of climates; exceptional heat or cold tolerant. All round a superb variety. Flowers winter/spring/summer. Height 15-20cm (6-8in).


Culinary note: Some parts of these flowers are edible. The crystallised petals are great decorations for cakes and cookies, or they can be added straight to green salads for an injection of colour. For more details about edible flowers click here.

More info
    • 1 packet (20 pansy seeds)

    • Despatch:
    •  
    • £2.99 £0.99
    • Out of stock