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 146 products.
 

Knautia macedonica

Macedonian Scabious, Scabiosa rumelica

 Customer Rating
One of the finest perennials for the border we have seen. It has a very long season of flowering lasting well into the autumn and early winter. The dense, double, pin cushion scabious like flowers are a brilliantly strong cherry red, a rare colour in border flowers. Makes a large, neat, rounded bushy plant producing many flowers which are excellent for cutting. Easy to grow and undemanding. Flowers summer/autumn. Height 90-120cm (3-4ft).
More info
    • 1 packet (50 knautia macedonica seeds)

    • Despatch: Within 1 days
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    • £3.99

Delphinium hybridum 'Pacific Giants Mixed'

A justifiably famous and reliable strain that will flower in the summer from an early sowing producing strong spikes of mainly semi-double blooms in a wide colour range on sturdy stems. Flowers early summer. Height 4-5 feet.
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    • 1 packet (110 delphinium seeds)

    • Despatch: Within 1 days
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    • £2.99

Dianthus deltoides 'Micro Chips'

Carnation, Maiden Pink

A true first year flowering perennial Dianthus that is very quick to bloom. Dwarf deep green foliage, soon becomes smothered in a spectacular mixture of dainty serrated edged flowers. Stunning in containers, used as ground cover at the front of borders or added to rockeries. Height: 15-20cm.

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

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    • 1 packet (80 dianthus seeds)

    • Despatch: Within 1 days
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    • £0.99

Penstemon 'Miniature Bells Mixed'

Beard Tongue

Stunning, miniature bells in pink, purple and rose shades, complemented by dwarf attractive blue- green foliage. Flowering over a long period in borders or containers.
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    • 1 packet (50 penstemon seeds)

    • Despatch: Within 1 days
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    • £0.69

Echinacea purpurea 'White Swan'

Coneflower

Strong honey fragranced flowers in 16 weeks, often with 14+ 10cm (4in) blooms out at once. Long lived for border, bedding or cutting. Height: 45-60cm (18-24in).
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    • 1 packet (50 echinacea seeds)

    • Despatch: Within 1 days
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    • £3.29

Pansy 'Petite Mixed' F1 Hybrid

Viola x wittrockiana

 Customer Rating
T&M believe that this is The Best Winter Flowering Pansy! Earlier and more floriferous than many old favourites, with the widest colour spectrum imaginable. Very dwarf, compact plants, flowering over a long period in borders and containers. Height: 15-23cm (6-9in).

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (35 pansy seeds)

    • Despatch: Within 1 days
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    • £3.99

Pansy 'Water Colours Mixed' F1 Hybrid

Viola x wittrockiana

Create a masterpiece with this fine mixture of the most delicate shades which has been an unqualified success wherever T&M have shown it. The colours work together in a way that brings raptuous comments wherever it is seen and it has performed well under adverse weather conditions both for colour, winter/ spring and summer flowering, for colour harmony and usefulness whether in containers, hanging baskets or bedding. Height: 15-20cm (6-8in).

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (30 pansy seeds)

    • Despatch: Within 1 days
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    • £1.99

Cynara cardunculus

Cardoon

 Customer Rating
The ripening seed heads of Cynara cardunculus are a fantastic combination of bronzes and golds. The stems are thick and sturdy, the foliage is large, serrated and silver and in its own right presents an imposing border plant for most of the year.
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    • 1 packet (18 cynara seeds)

    • Despatch: Within 1 days
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    • £0.99

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.
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    • 1 packet (6 geranium seeds)

    • Despatch: Within 1 days
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    • £0.99

Viola x williamsiana 'Sweeties'

Pansy, Viola williamsii

 Customer Rating
The best ever dwarf Viola for containers! A unique mixture of small, attractive bicoloured flowers resembling tiny sweets. Compact plants are smothered in masses of flowers over a very long period, making it ideal for summer or winter flowering bedding displays.

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (25 Viola seeds)

    • Despatch: Within 1 days
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    • £2.99

Helenium puberulum 'Autumn Lollipop'

Helen's Flower, Rosilla, Helenium puberleum

 Customer Rating

A curious plant for the front of the border. Autumn Lollipop boasts heads of rustic yellow and bronze with a small basal frill of ruffled petals. Highly ornate and also an extremely original cut flower. Height: 60-90cm (24-36in).

More info
    • 1 packet (80 helenium seeds)

    • Despatch: Within 1 days
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    • £0.69

Aster 'Composition'

Aster novi-belgii, Aster novae-angliae, Michaelmas Daisy, New England Aster

 Customer Rating
Michaelmas Daisies - Bright colours of Aster novi-belgi and novae-angliae composed for a contrasting rich colour range of long stemmed autumnal flowers for cutting.
More info
    • 1 packet (60 aster seeds)

    • Despatch: Within 1 days
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    • £2.99