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 47 products.
 

Centranthus 'Star Ruber Mixed'

Valerian, Red Valerian, Pretty Betsy

A beautiful border plant beloved by bees and butterflies. Mixture contains three colours: rose, white and maroon. Plants are lightly fragrant, long flowering and may also be used as a cut flower.
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    • 1 packet (100 seeds)

    • Despatch: Within 3 days
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    • £2.89

Gaillardia x grandiflora 'Arizona Red Shades'

Blanket Flower

 Customer Rating
  • 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”).
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    • 1 packet (20 seeds)

    • Despatch: Within 3 days
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    • £2.99

Salvia coccinea 'Summer Jewel Red'

Scarlet Sage

  • Flowers all summer until the first frosts
Applauded by Fleuroselect judges, Salvia coccinea 'Summer Jewel Red' is quicker to flower and more compact than other dwarf salvias. This free flowering variety bears its long lasting scarlet blooms above compact aromatic foliage. Scarlet Sage makes a stunning addition to borders and containers where it will attract pollinating insects to its fiery blooms. Although perennial, Salvia coccinea is half hardy and best treated as an annual in the UK. Height: 45cm (18"). Spread: 30cm (12").
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    • 1 packet (30 seeds)

    • Despatch: Within 3 days
    •  
    • £2.69

Lysimachia atropurpurea

Loosestrife

A superb border plant with silver- green lanceolate foliage and many spikes of claret-red, almost black florets - a highly unusual colour in perennials. May also be used in containers or as a cut flower.
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    • 1 packet (40 seeds)

    • Despatch: Within 3 days
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    • £3.49

Silene laciniata 'Jack Flash'

Catchfly, Campion

Wow! What a stunning perennial! Easy to grow and sure to catch some admiring glances. Attractive bright red, starburst blooms borne on slender stems. Goes on flowering over a very long period.
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    • 1 packet (15 seeds)

    • Despatch: Within 3 days
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    • £2.99

Achillea millefolium 'Cassis'

Yarrow

Many stems with masses of attractive, intense cherry red flowers, over a very long period. Achillea Cassis is a first year flowering perennial, making an excellent border filler and cut flower.
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    • 1 packet (70 seeds)

    • Despatch: Within 3 days
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    • £1.49

Pansy 'Chalon Supreme Wildberry Mixed'

Viola x wittrockiana

A stunning mixture of large ruffled flowered pansies in a dazzling wild berry blend of purple picotees and rose shades. Bushy compact plants flower over a long period brightening autumn, spring or summer containers. Spring sowings will give flowers during early summer, whilst summer and autumn sowings will bloom the following winter or spring.


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

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    • 1 packet (20 seeds)

    • Despatch: Within 3 days
    •  
    • £2.49

Canna indica 'T&M Hybrids'

Indian Shot Plant

 Customer Rating
Shades of yellow, red and cream with pretty bronze or green foliage. Sow early.
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    • 1 packet (15 seeds)

    • Despatch: Within 3 days
    •  
    • £1.49

Hollyhock 'Fiesta Time'

Alcea rosea, Althaea rosea

A beautiful, cottage garden favourite which will flower quickly from seed in its first year. Robust, dwarf plants produce stout stems which carry wonderful, double, cerise-pink, fringed blooms from mid to late summer. Very impressive when planted together in small groups in borders or try planting in large containers for a gorgeous patio display of hollyhocks!

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

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    • 1 packet (35 seeds)

    • Despatch: Within 3 days
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    • £2.99

Astrantia major-hybrida 'Ruby Cloud'

Hattie's Pincushion, Masterwort

Thin upright stems, large flowers of ruby, tinged in apple green. True from seed and wonderful in the damp border.
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    • 1 packet (22 seeds)

    • Despatch: Within 3 days
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    • £3.99

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).
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    • 1 packet (50 seeds)

    • Despatch: Within 3 days
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    • £2.99

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 3 days
    •  
    • £3.49