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 5 products.
 

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

Eryngium alpinum 'Blue Lace'

Sea Holly, Alpine Eryngo

A spectacular alpinum selection with impressive long lasting clear violet-blue terminal flower heads on stunning blue stems. Makes an eye-catching addition to any border, and an attractive cut flower. Height: 85cm (34in).
More info
    • 1 packet (25 seeds)

    • Despatch: Within 3 days
    •  
    • £3.29

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 3 days
    •  
    • £3.99

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: By end of August 2014
    •  
    • £3.99

Salvia Duo

Salvia patens, Salvia patens 'Cambridge Blue', Gentian Sage

Collection includes the following varieties; Salvia patens - 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.
Salvia patens 'Cambridge Blue' - exquisite large pale blue, hooded flowers on erect stems. Superb in borders, greenhouse or conservatory, and in milder areas tubers can be left outside.
More info
    • 2 packets - 1 of each variety (30 seeds in total)

    • Despatch: By end of August 2014
    • SAVE £1.49  
    • £7.98 £6.49