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 33 products.
 

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).
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    • 1 packet (200 seeds)

    • Despatch: Within 3 days
    •  
    • £2.99

Erigeron karvinskianus 'Profusion'

Erigeron karvinskianus, Fleabane, Mexican Fleabane

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

    • Despatch: Within 3 days
    •  
    • £3.49

Rudbeckia fulgida var. sullivantii 'Goldsturm'

Coneflower, Black-eyed Susan

A profusion of bright flowers up to 5in across on bushy plants.
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    • 1 packet (100 seeds)

    • Despatch: Within 3 days
    •  
    • £2.99

Primula veris

Cowslip

The famous meadow and hedge row plant of simple beauty. Fragrant lemon yellow pendulous blooms. Easy to grow in sun or part shade. Flowers spring. Height 23cm (9in). Contact with the leaves may cause skin allergy to some people with sensitive skins.

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

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    • 1 packet (150 seeds)

    • Despatch: Within 3 days
    •  
    • £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.

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    • 1 packet (25 seeds)

    • Despatch: Within 3 days
    •  
    • £3.99

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.
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    • 1 packet (150 seeds)

    • Despatch: Within 3 days
    •  
    • £2.69

Primula vulgaris

Primrose, Common Primrose

Without doubt this native British plant is one of the most beautiful of the Primula family and an excellent garden plant. The flowers are of softest yellow, a colour very rare among flowers, and are deliciously scented. Happy in full sun or part shade. Flowers spring. Height 6in.

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

More info
    • 1 packet (50 seeds)

    • Despatch: Within 3 days
    •  
    • £2.69

Echinops ritro subsp. ruthenicus

Globe Thistle

Tight clusters of deep blue flowers form mini-globes on long, strong straight stems of pure silver. The foliage is amazing and quite unique, giving off a silver sheen whatever the weather. Incredibly ornamental in or out of flower. An all round superb species with ideal height.
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    • 1 packet (20 seeds)

    • Despatch: Within 3 days
    •  
    • £3.29

Gaura lindheimeri

White Gaura, Lindhemier's Beeblossom

Spikes of ¾in white flowers, tinged in pink. Long flowering in the border and as cut flowers. Cannot be sent to Hawaii.
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    • 1 packet (30 seeds)

    • Despatch: Within 3 days
    •  
    • £3.69

Tropaeolum speciosum

Flame Nasturtium, Flame Flower, Flame Creeper

Flame Flower. Gorgeous scarlet flowered climber. Climbs to 180-300cm (6-10ft).
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    • 1 packet (10 seeds)

    • Despatch: Within 3 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)
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    • 1 packet (100 seeds)

    • Despatch: Within 3 days
    •  
    • £2.99

Eryngium giganteum 'Miss Willmott's Ghost'

Eryngium giganteum, 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 (30 seeds)

    • Despatch: Within 3 days
    •  
    • £2.49