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 40 products.
 
Centranthus Star Ruber Mixed

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. More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
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    • £2.69
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
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    • £2.99
Delosperma Floribunda Stardust

Delosperma floribunda 'Stardust'

Ice Plant
 Customer Rating
The perfect plant for that hot, dry spot in your borders or rockeries. Dwarf, shiny, deep green, almost metallic-looking succulent foliage bursts into bloom from mid May. Plants are covered with spectacular lilac-purple flowers flowers with large white centres, flowering until the first frost. Loved by butterflies. Height: 10-15cm (4-6in) More info
    • 1 packet (200 seeds)

    • Despatch: Within 2 Days
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    • £2.29
Echinacea X Hybrida Magic Box

Echinacea x hybrida 'Magic Box'

Coneflower

One of the most comprehensive mixtures of colours available. Each bloom has been carefully selected and bred by our flower breeders for its stunning form as well as its superior garden performance. The tall colourful flowers look fabulous in borders or in a vase in the house.

 More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
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    • £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
    •  
    • £3.99
Erigeron Karvinskianus Profusion

Erigeron karvinskianus 'Profusion'

Fleabane, Mexican Fleabane
Lovely subject for hanging baskets, window boxes, patio tubs. Flowers within 3 months. More info
    • 1 packet (200 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Echinacea Purpurea Pink Parasol

Echinacea purpurea 'Pink Parasol'

Coneflower
Pink Parasol has stunning, large, deep purplish-pink blooms, with contrasting orange cones standing proudly above strong stems. Each bloom can reach 7-10cm (3-4in) in diameter compared to other varieties only reaching a diameter of 5-7cm (2-3in). Once established, bushy plants produce clusters of stems adding height to your borders, attracting butterflies and beneficial insects to your garden, as well as making dramatic long lasting cut flowers. Height 90-120cm (3-4ft) More info
    • 1 packet (35 seeds)

    • Despatch: Within 2 Days
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    • £2.49
Achillea Millefolium Cassis

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. More info
    • 1 packet (70 seeds)

    • Despatch: Within 2 Days
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    • £1.49
Achillea Millefolium Summer Berries F2 Hybrid

Achillea millefolium 'Summer Berries' F2 Hybrid

Yarrow
An easy to grow, first year flowering perennial, Achillea Summer Berries is ideal for adding a sumptuous mixture of fruity colours to borders. Achillea Summer Berries makes an excellent cut or dried flower, as well as attracting bees and butterflies to your garden. Height: 60-75cm (24-30in). More info
    • 1 packet (40 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.49
Echinacea Purpurea White Swan

Echinacea purpurea 'White Swan'

Coneflower
Strong honey fragranced flowers in 16 weeks, often with 14+ 10cm (4in) blooms out at once. Long lived for border, bedding or cutting. Height: 45-60cm (18-24in). More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
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    • £2.79
Sedum Rock Garden Mixed

Sedum 'Rock Garden Mixed'

Sedum rupestre, Sedum spathulifolium, Sedum album, Sedum aizoon, Sedum reflexum, Stone Orpine, Reflexed Stonecrop, Spoon-leaved Stonecrop, White Stonecrop

Harvest permitting includes: S. reflexion, S. spathulifolium, S. album hybrids, S. aizoon and many others in full foliage and flowering colour range.

 More info
    • 1 packet (300 seeds)

    • Despatch: Within 2 Days
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    • £0.69

Achillea ptarmica 'Double Diamond'

Yarrow, Sneezewort
 Customer Rating
Compact bushy plants are smothered with mainly double, dazzling white pom-pom flowers. An improved selection of this fabulous first-year-flowering hardy perennial, growing to 30cm (12”) in the first year and 80cm (32”) in the second. Achillea ‘Double Diamond’ is ideal for the front and middle of borders, as ground cover or as low hedging where it will attract bees and other beneficial insects. This elegant Yarrow also makes a lovely cut or dried flower. Height: 80cm (31”). Spread: 60cm (24”). More info
    • 1 packet (80 seeds)

    • Despatch: Within 2 Days
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    • £1.69