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 26 products.
 

Erigeron karvinskianus 'Profusion'

Erigeron karvinskianus, Fleabane, Mexican Fleabane

Lovely subject for hanging baskets, window boxes, patio tubs. Flowers within 3 months.
More info
    • 1 packet (200 erigeron seeds)

    • Despatch: Within 1 days
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    • £3.49

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
    •  
    • £0.69

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
    •  
    • £0.99

Verbena bonariensis

Glandularia, Verbena patagonica

Tall heads of bright, eye-catching rosy lavender, adding a tranquil tropical feel to borders. Height: 120-150cm (4-5ft).
More info
    • 1 packet (200 seeds)

    • Despatch: By end of July 2015
    •  
    • £2.99

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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    • £4.69

Aquilegia caerulea

Rocky Mountain Columbine, Colarado Blue Columbine, Granny's Bonnet

Possibly the most beautiful Aquilegia of all. With glorious light to deep blue flowers 2-3in across sometimes fetching bi-coloured with white. An excellent border perennial, grand for cutting, in bloom for several weeks and will grow in sun or light shade. Flowers late spring/early summer. Height: 30-35cm (12-14in)
More info
    • 1 packet (100 aquilegia seeds)

    • Despatch: Within 1 days
    •  
    • £2.99

Foxglove 'Apricot'

Digitalis purpurea

 Customer Rating
An outstanding introduction producing large spikes of a lovely shade of Apricot. A most unusual and sought after colour. Excellent for the border in sun or part shade, and very useful as a cut flower. Flowers early summer. Height 1.3-1.5m (4-5ft).
More info
    • 1 packet (450 foxglove seeds)

    • Despatch: By end of July 2015
    •  
    • £0.99

Foxglove 'Alba'

Digitalis purpurea f. albiflora, Digitalis purpurea 'Alba'

Marvellous large pure white spikes, a rare and unusual colour. Magnificent in the border in sun or part shade and very useful as a cut flower. Flowers early summer.
More info
    • 1 packet (150 foxglove seeds)

    • Despatch: By end of July 2015
    •  
    • £2.69

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 echium seeds)

    • Despatch: Within 1 days
    •  
    • £3.99

Primula vialii

An utterly different and unique primula. Dainty, eye-catching, kniphofia-like flowerscape with carmine, rose and purple mingled together. Will grow in an open border but best in semi-shade.
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    • 1 packet (100 primula seeds)

    • Despatch: Within 1 days
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    • £1.49

Lathyrus latifolius 'White Pearl'

Everlasting Sweet Pea, Perennial Sweet Pea, Lathyrus latifolius 'Albus'

Magnificent, distinctive pearl-like clusters of dazzling white flowers. One of the finest white cut flowers in existance flowering over a long period. They thrive in full sun, love to scramble over tall shrubs, fences etc. and are equally at home on trellises, walls, arbours and pergolas.
More info
    • 1 packet (15 lathyrus seeds)

    • Despatch: Within 1 days
    •  
    • £2.99

Eryngium giganteum 'Miss Willmott's Ghost'

Sea Holly

A highly ornate border plant with heart-shaped basal foliage from which rise stems of many decorative steel-blue cones surrounded by a collar of prickly, scalloped leaves. During the summer the foliage transforms from mid green to silvery-grey. Wonderful for dried arrangements, especially at Christmas. Plants can be short lived but often self seed before dying. Height: 90-100cm (36-40in).
More info
    • 1 packet (25 eryngium seeds)

    • Despatch: Within 1 days
    •  
    • £2.09
    • 1 packet (30 seeds)

    • Despatch: Within 3 days
    •  
    • £2.49