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 72 products.
 

Foxglove 'Camelot Trio' F1 Hybrid

Digitalis

One packet each of: 'Camelot Cream', 'Lavender' and 'Rose'. The first ever F1 Hybrid Foxgloves! Spectacular plants that reliably flower in the first year, with another heavy flush of flowers in the second year. Uniform plants with high quality flower spikes in a rich carousel of colour as the speckled, jewel-like blooms open all around the stout stems, giving more impact than ever before! Ideal for shady beds and borders. Prefers any well-drained soil in part shade. Height: 90-120cm (3-4ft). More info
    • 3 packets - 1 of each variety (52 pellets in total)

    • Despatch: Within 3 days
    • SAVE £1.98  
    • £8.97 £6.99

Helenium autumnale 'Sunshine Hybrids'

Helen's Flower, Sneezeweed

A dazzling colour range of flowers, making a spectacular autumn display in perennial borders. Height: 60-120cm (2-4ft).
More info
    • 1 packet (300 seeds)

    • Despatch: Within 3 days
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    • £2.59

Foxglove 'Candy Mountain'

Digitalis purpurea

Foxglove Candy Mountain is totally unique as it is the first upward facing foxglove from seed. This unusual characteristic enables you, and the bees, to peep inside the stunning rose pink blooms and view their delightful freckled throats, which appear all the way around the stems. These flower stems are so strong, sturdy and erect that in breeding trials Candy Mountain was given the nickname 'Viagra'! Ideal for planting in drifts, creating a colourful display towards the middle or back of your perennial or cottage garden borders. Height: 90-140cm (36-56 inches).
More info
    • 1 packet (200 seeds)

    • Despatch: Within 3 days
    •  
    • £2.69

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)
More info
    • 1 packet (100 seeds)

    • Despatch: Within 3 days
    •  
    • £2.99

Aquilegia x hybrida 'McKana Giants Mixed'

Columbine, Granny's Bonnet

Attractive free-flowering, long spurred mixture in a wide range of vibrant coloured blooms on strong stems, ideal for cutting. Outstanding garden performance.
More info
    • 1 packet (200 seeds)

    • Despatch: Within 3 days
    •  
    • £2.19

Allium giganteum

Giant Allium, Ornamental Onion

One of the tallest of the allium species, the spectacular ball-shaped blooms are made up of masses of tiny bright purple flowers and have a diameter of at least 20cm (8"). The airy spheres of bloom are followed by architectural seedheads that create a spectacular autumn display. Undemanding and easy to grow, these magnificent, long lasting allium flowers are also excellent for cutting. Height: 120cm (48"). Spread: 15cm (6").

Useful links:

How to grow bulbs, corms and tubers

More info
    • 1 packet (10 seeds)

    • Despatch: Within 3 days
    •  
    • £4.79

Aquilegia 'Sweet Rainbows'

Columbine, Granny's Bonnet

A breeding breakthrough! The result of merging a full range of top quality Aquileglas, all selected for form, colour and the best fragrance. Ideal for adding sweet scentsation to any border.
More info
    • 1 packet (20 seeds)

    • Despatch: Within 3 days
    •  
    • £3.19

Foxglove 'Dalmatian Peach' F1 Hybrid

Digitalis purpurea

Soft apricot coloured blooms delicately spotted with yellow cream markings make this beautiful digitalis particularly beguiling. Foxglove 'Dalmation Peach' produces well branched, compact, dwarf plants that flower surprisingly quickly in their first year from sowing. The upright flower spikes of this superb cottage garden perennial are ideal for adding height to the back of borders or planting en masses for an enchanting, informal bedding scheme. Height: 50cm (20"). Spread: 40cm (16").
More info
    • 1 packet (12 seeds)

    • Despatch: Within 3 days
    •  
    • £3.39

Foxglove 'Excelsior Hybrid Mixed'

Digitalis purpurea

A most effective and spectacular strain of Foxgloves superb for shady shrub and tree areas, back of borders and excellent for cut flowers. They can really bring the early summer garden alive! Flowers early summer. Height 5ft.
More info
    • 1 packet (2500 seeds)

    • Despatch: Within 3 days
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    • £1.99

Achillea millefolium 'Summer Berries' F2 Hybrid

Yarrow

Masses of tiny flowers create flat plates of colour that balance on tall stems above the aromatic, feathery foliage. This low maintenance perennial provides an explosion of late summer colour to brighten the backs of herbaceous borders. Easy to grow, even on poor dry soils, Achillea millefolium ÔSummer BerriesÕ is ideal for wildlife gardens where it attracts butterflies and other insects. The vivid range of colours also makes yarrow a spectacular cut or dried flower. Height: 60cm (24"). Spread: 60cm (24").
More info
    • 1 packet (40 seeds)

    • Despatch: Within 3 days
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    • £2.69

Aquilegia x hybrida 'Firecracker'

Columbine, Granny's Bonnet

Truly outstanding, with blazing, long-spurred blooms of contrasting orange-red and canary-yellow, complemented by blue-green foliage. Ideal planted en masse, turning borders into an explosion of colour.
More info
    • 1 packet (30 seeds)

    • Despatch: Within 3 days
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    • £3.69

Delphinium hybridum 'Pacific Giants Mixed'

A justifiably famous and reliable strain that will flower in the summer from an early sowing producing strong spikes of mainly semi-double blooms in a wide colour range on sturdy stems. Flowers early summer. Height 4-5 feet.
More info
    • 1 packet (110 seeds)

    • Despatch: Within 3 days
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    • £2.99