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 18 products.
 
Commelina Dianthifolia

Commelina dianthifolia

Bird-bill Day Flower, Widow's Tears

  Customer Rating

A very rare plant indeed. This is one of the few plants with such intense blue flowers and that will also perform well in the garden. Flowering in its first year with 2.5cm (1in) gentian blue flowers, it then produces tubers and springs back to life the following year with an unceasing display of blooms. Wonderful in containers, rock gardens and the border (regardless of soil conditions). Hardy down to -8/-10C. Flowers summer. Height 15-30cm (6-12in.)

 More info
    • 1 packet (25 seeds)

    • Despatch: Within 2 Days
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    • £1.49
Gaillardia x grandiflora 'Arizona Red Shades'

Gaillardia x grandiflora 'Arizona Red Shades'

Blanket Flower
  • First red gaillardia from seed
A spectacular new dwarf Blanket Flower with a long-flowering period and superb garden performance. Flowering in their first year, the fiery red blooms sit neatly above uniform, well-branched plants throughout summer and well into autumn. Gaillardia x grandiflora 'Arizona Red Shades' is undemanding, providing fabulous colour whatever the weather. Perfect for containers or filling gaps in the front of borders. Height: 30cm (12”). Spread: 45cm (18”). More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99

Echinacea 'PowWow Wild Berry'

Coneflower
With outstanding garden performance and the capacity to produce more flowers per plant than any other seed-raised Coneflower, Echinacea ‘PowWow Wild Berry’ is a striking addition to any garden. Whether grown as a first-year flowering or as a traditional over-wintered perennial, its unique and intense deep-pink flowers with their dark rose centres will invigorate borders and pots with their vivid colour. Coneflower plants are particularly useful for exposed coastal sites and wildlife gardens. Height: 60cm (24"). Spread: 45cm (18"). More info
    • 1 packet (10 seeds)

    • Despatch: Within 2 Days
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    • £3.99
Gaillardia x grandiflora 'Arizona Apricot'

Gaillardia x grandiflora 'Arizona Apricot'

Blanket Flower
A spectacular new dwarf Blanket Flower with a long-flowering period and superb garden performance. Flowering in their first year, the golden blooms blushed with apricot sit neatly above uniform, well-branched plants throughout summer and well into autumn. Gaillardia x grandiflora 'Arizona Apricot' is undemanding, providing fabulous colour whatever the weather. Perfect for containers or filling gaps in the front of borders. Height: 30cm (12”). Spread: 45cm (18”). More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Scabiosa Atropurpurea Beaujolais Bonnets

Scabious 'Beaujolais Bonnets'

Scabiosa, Pincushion Flower
An attractive first year flowering perennial, producing bushy plants with clusters of wiry stems clothed in unusual rich burgundy flowers with contrasting paler outer petals and white stamens. Ideal for attracting butterflies to your borders or containers. Height: 50-60cm (20-24in). More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Agapanthus Headbourne Hybrids

Agapanthus 'Headbourne Hybrids'

African Blue Lily

 Free flowering with large round heads of true blue flowers growing into a thick established clump. Truly hardy. Bold, attractive bulbous plants for sheltered borders, tubs, containers etc. Elegant strap shaped leaves and bunches of blue flowers on 2-3ft long sterns. The dried seed head can be used for winter decoration. There is considerable evidence that these hybrids are really hardy in many parts of the British Isles, particularly where good drainage is possible. They flower freely in their second year and generally make very good garden plants, growing into a thick established clump. Flowers mid/late summer. More info
    • 1 packet (22 seeds)

    • Despatch: Within 2 Days
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    • £3.79
Kniphofia Hirsuta Traffic Lights

Red Hot Poker 'Traffic Lights'

Kniphofia hirsuta, Torch Lily
An intriguing dwarf red hot poker with unusual red, amber and green flower spikes. First year flowering, adding interest to borders and containers. Height: 30-40cm (12-16in). *Sow Sept/Oct to flower the following season. More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
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    • £3.29
Penstemon X Hybrida Lilac Frost

Penstemon x hybrida 'Lilac Frost'

Beard Tongue
Probably the most winter-hardy, resilient Penstemon we have ever found! Bushy mounds of deep green foliage are enhanced by unusual frosty white, bicoloured blooms. Flowers throughout the summer in borders or large containers. More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
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    • £2.59
Gaillardia Anisata Arizona Sun

Gaillardia aristata 'Arizona Sun'

Blanket Flower
Extremely dwarf, compact mound-forming plants become a mass of radiant red and gold large, daisy-like flowers throughout the summer. Flowers very quickly from seed, so makes a useful addition to perennial borders, or will add interest to bedding displays and containers. More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
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    • £2.89
Malva Moschata 'Snow White'

Malva moschata 'Snow White'

Musk Mallow
Dwarf, compact plants, covered by masses of glistening snow white flowers. Excellent garden performance, flowering over a long period all summer. Ideal for borders or containers. Flowers in first year. Height: 30-38cm (12-15in). More info
    • 1 packet (40 seeds)

    • Despatch: Within 2 Days
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    • £1.49
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
Penstemon Heterophyllus True Blue

Penstemon heterophyllus 'True Blue'

Foothill Penstemon, Beard Tongue
Yes, this really is a true blue Penstemon, true from seed! Azure blue trumpet blooms in abundance, with green and grey tinged foliage. An added bonus too - as this charming perennial may be treated as a annual, flowering in its first year. Highly versatile for borders, rockeries, bedding or the patio container. More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
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    • £2.99