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 63 products.
 
Malva Moschata 'Snow White'

Malva moschata 'Snow White'

Musk Mallow
Dwarf, compact plants, covered by masses of glistening snow white flowers. Excellent garden performance, flowering over a long period all summer. Ideal for borders or containers. Flowers in first year. Height: 30-38cm (12-15in). More info
    • 1 packet (40 seeds)

    • Despatch: Within 2 Days
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    • £1.49
Salvia Patens

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 seeds)

    • Despatch: Within 2 Days
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    • £3.99
Aquilegia X Hybrida Mckana Giants Mixed

Aquilegia x hybrida 'McKana Giants Mixed'

Columbine, Granny's Bonnet
Attractive free-flowering, long spurred mixture in a wide range of vibrant coloured blooms on strong stems, ideal for cutting. Outstanding garden performance. More info
    • 1 packet (200 seeds)

    • Despatch: Within 2 Days
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    • £1.99
Dianthus Caryophyllus Trailing Carnations Mixed

Dianthus caryophyllus 'Trailing Carnations Mixed'

Wild Carnation
Travelling in the Alpine regions of Europe one is struck by the magnificent and visual impact of their window boxes, hanging baskets, pots, tubs etc. And then we realised that they make liberal use of pendulous carnations adding an extra slant in perspective and design. The colour range is mainly pink and red shades.

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

 More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
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    • £2.49
Helenium Autumnale Sunshine Hybrid

Helenium autumnale 'Sunshine Hybrids'

Helen's Flower, Sneezeweed
A dazzling colour range of flowers, making a spectacular autumn display in perennial borders. Height: 60-120cm (2-4ft). More info
    • 1 packet (300 seeds)

    • Despatch: Within 2 Days
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    • £2.19
Aquilegia Viridiflora Chocolate Soldier

Aquilegia viridiflora 'Chocolate Soldier'

Columbine, Granny's Bonnet

 This rare, choice species features delicate, nodding, chocolate-brown, 1.5cm (½in) blooms from late spring onwards. The neatly compact plants are perfect for borders and rockeries. A collector's item. Height: 30-35cm (12-14 inches). More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Delphinium X Cultorum Centurion Rose F1 Hybrid

Delphinium x cultorum 'Centurion Rose' F1 Hybrid

One of the highest quality Delphiniums from seed! Robust flower spikes become clothed in superb mid-rose, triple layered petals, known as duplex flowers, with white bees. Wonderful, adding height and colour to borders, along with impressing the judges on the show bench. Height: 120-150cm (4-5ft). More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
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    • £1.49
Salvia Patens Cambridge Blue

Salvia patens 'Cambridge Blue'

Gentian Sage
An outstanding plant, which is a variant to the Mexican species. Exquisite large pale blue, hooded flowers on erect stems. Superb in borders, greenhouse or conservatory, and in milder areas tubers can be left outside. Otherwise simply lift plants in the autumn and store similarly to Dahlia tubers until spring, when you can plant them outside again. Height: 60-75cm (24-30 inches). More info
    • 1 packet (15 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.99
Aquilegia Vulgaris Miss M.I. Huish

Aquilegia vulgaris 'Miss M.I. Huish'

Columbine, Granny's Bonnet
A stunning introduction that produces clusters of double spurless, dark violet clematis-like flowers, on strong sturdy stems. Looks excellent grown alongside Green Apples making an interesting partnership for your borders. Height: 60cm (24in). More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
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    • £2.19
Dianthus Deltoides Arctic Fire

Dianthus deltoides 'Arctic Fire'

Maiden Pink

 A spectacular first year flowering perennial Dianthus that is quick to flower. Dwarf plants of deep green foliage, are smothered with dainty white serrated flowers complimented by an attractive fiery red eye. These delightful 'Pinks' are long flowering, and look stunning as ground cover in borders or added to rockeries. 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 (80 seeds)

    • Despatch: Within 2 Days
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    • £2.49
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
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    • £1.49
Delphinium Hybridum New Zealand Doubles Mixed

Delphinium hybridum 'New Zealand Doubles Mixed'

Layer upon layer of soft petals make up the tight double blooms on this indulgent new mixture, a sister breeding line to the ever popular New Zealand Hybrids. Dreamy spires in calming shades of pale mauves, bold blues, pinks, cool whites and creams create an awesome presence in perennial borders, with the added benefits of flowering longer, stronger growing and mildew resistance than other Delphiniums. Height: 120-150cm (4-5ft). More info
    • 1 packet (10 seeds)

    • Despatch: Within 2 Days
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    • £4.99