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.
 

Nepeta cataria ssp. citrina

Lemon Catmint, Nepeta cataria 'Citriodora'

Quite unlike ordinary catmint, handle or squeeze the leaves and they give off a rich lemony fragrancy which pervades the garden with rich flowery perfume on still, warm summer evenings. It's easy to grow and can be treated as either annual or perennial making a good border or summer hedge plant.

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

More info
    • 1 packet (100 seeds)

    • Despatch: By end of May 2015
    •  
    • £2.49

Iris (Wild) - Exotic Seed Collection

Dietes grandiflora

Very gracious, unusual tropical iris like blooms, pure white with a bronzey-yellow throat flanked by three mauve veined petals.

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    • 1 packet (10 seeds)

    • Despatch: By end of May 2015
    •  
    • £3.99

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 seeds)

    • Despatch: By end of May 2015
    •  
    • £2.09
    • 1 packet (30 seeds)

    • Despatch: Within 3 days
    •  
    • £2.49