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 7 products.
 
Geranium Pratense Striatum Splish Splash™

Geranium pratense 'Splish Splash™'

Geranium pratense 'Striatum', Hardy Geranium, Meadow Cranesbill

One of the most beautiful, striking and unusual Perennial Geraniums with mauve-blue splashes and flecks on pure white petals, each 3cm (¼in) flower head appearing to be individually designed and painted. A fascinating, rare and prized border plant, coming remarkably true from seed. Flowers summer. Height: 45-75cm (18-30in).

 More info
    • 1 packet (8 seeds)

    • Despatch:
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    • £0.99
    • Out of stock
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
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    • £2.09
Eryngium Alpinum Blue Lace

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 2 Days
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    • £2.79
Salvia Patens

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 2 Days
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    • £3.99
Salvia Patens Cambridge Blue

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: Within 2 Days
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    • £3.99
Eryngium Planum Blue Hobbit

Eryngium planum 'Blue Hobbit'

Sea Holly, Blue Eryngo
The world's first naturally dwarf variety! Compact plants produce neat, basal rosettes from which emerge decorative, silver-blue stems that form into large, globular flower heads containing hundreds of small blue flowers. Ideal for adding interest to the front of borders or to containers. Seeds sown from November to January require no pre-chilling and will usually flower in their 1st year. More info
    • 1 packet (15 seeds)

    • Despatch: Within 2 Days
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    • £1.49

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: Within 2 Days
    • SAVE £1.49  
    • £7.98 £6.49