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 16 products.
 
Lysimachia Atropurpurea

Lysimachia atropurpurea

Loosestrife
A superb border plant with silver- green lanceolate foliage and many spikes of claret-red, almost black florets - a highly unusual colour in perennials. May also be used in containers or as a cut flower. More info
    • 1 packet (40 seeds)

    • Despatch: Within 2 Days
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    • £3.29
Exotic : Giant Viper's Bugloss (Echium Pininana)

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 seeds)

    • Despatch: Within 2 Days
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    • £3.79
Kew : Eryngium Giganteum Miss Wilmott's Ghost

Eryngium giganteum 'Miss Willmott's Ghost' - Kew Collection Seeds

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 2 Days
    •  
    • £2.09
Lysimachia Ephemerum

Lysimachia ephemerum

Loosestrife

 Probably one of the best species with silver lanceolate foliage and stems. The flower spikes contain many small white flowers, gently veined in mauve. A choice perennial from Spain, and an unusual cut flower too. Height: 60-120cm (3-4ft). More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
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    • £3.29
Verbascum X Hybrida Copper Rose F1

Verbascum x hybrida 'Copper Rose' F1 Hybrid

Mullein, Celsia

 The robust plants are actually incapable of setting viable seed, so we must offer seed which has been pollinated meticulously by hand between the two parent plants. As with most F1 Hybrids, special factors are tremendous vigour and a plant that just keeps on flowering, as it tries to produce seed which it cannot do. The gorgeous silky, large blooms will smother the soft, silver stems which reach up to 3ft. A great range of fashionable and delicious colours - ranging from copper to buff, apricot, old rose, tan and other lovely blends, all bursting from the contrasting silvery-grey flower spikes and buds. Sown in January/February they will easily flower during the summer of their first year, and if cut back will often re-bloom. An excellent performer. More info
    • 1 packet (10 seeds)

    • Despatch: Within 2 Days
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    • £5.99

Nepeta cataria

Catmint, Catnip

 No cat should be deprived of this! Their reaction to the aromatic silver grey foliage is fascinating. Flower spikes of violet spotted white.

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

 More info
    • 1 packet (225 seeds)

    • Despatch: Within 2 Days
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    • £2.89
Cynara Cardunculus

Cynara cardunculus

Cardoon
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. More info
    • 1 packet (18 seeds)

    • Despatch: Within 2 Days
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    • £1.49
Agastache Anisata

Agastache foeniculum

Anise Hyssop, Agastache anisata, Agastache anethiodora
Silvery-green foliage which is scented unmistakenly of Aniseed. Flower spikes of blue appear during summer. Bees, butterflies and goldfinches love it!

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

 More info
    • 1 packet (60 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.29
Agastache Aurantiaca Fragrant Mixed

Agastache aurantiaca 'Fragrant Mixed'

Hummingbird Mint
A truly amazing display of tall, brightly coloured spikes of tasselled florets appear to burst out like flames from the lanced and highly perfumed foliage. Very quick and easy to grow, this lovely perennial will enhance your borders and containers, whilst its balmy fragrance will attract insects away from your summer patio! Excellent first year flowering variety. Height: 50-60cm (20-24in). More info
    • 1 packet (60 seeds)

    • Despatch: Within 2 Days
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    • £2.29
Agastache Aurantiaca Apricot Sprite

Agastache aurantiaca 'Apricot Sprite'

Hummingbird Mint
Never before has flower power been experienced from a border plant of this kind. A staggering display of apricot spikes of tasselled florets, erupting like flames from the laced, richly fragrant foliage. Very quick growing, excellent in bedding, borders and containers. Bred and selected by T&M for its dwarf, compact habit, and was awarded a Fleuroselect Quality Mark. All this and it also flowers in its first year from seed. More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
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    • £2.69
Echium Fastuosum

Echium fastuosum

Echium candicans, Pride of Madeira
 Customer Rating
Native of the Canary Islands. Height: 60-120cm (2-4ft). More info
    • 1 packet (25 seeds)

    • Despatch:
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    • £1.49
    • Out of stock
Echium Pininana Alba Snow Tower

Echium pininana alba 'Snow Tower'

Tower of Jewels, Giant Viper's Bugloss, Tree Echium, Echium pinnifolium

  Customer Rating
Rare white-flowered form of this popular garden giant! The cascades of tightly-packed florets appear in the second year from the silver-green rosette and can reach an incredible height. More info
    • 1 packet (15 seeds)

    • Despatch:
    •  
    • £1.49
    • Out of stock