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 79 products.
 

Foxglove 'Candy Mountain'

Digitalis purpurea

T&M World Exclusive. 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).
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    • 1 packet (200 seeds)

    • Despatch: Within 3 days
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    • £2.69

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

Delosperma 'Hardy Mixed'

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)
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    • 1 packet (200 seeds)

    • Despatch: Within 3 days
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    • £2.69

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
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    • £2.99

Cyclamen 'All-the-year-round Flowering Mixed'

A balanced mixture of hardy garden varieties thriving in shade or woodland, chosen from species flowering at most periods of the year. Height: 8-15cm (3-6in). More info
    • 1 packet (16 seeds)

    • Despatch: Within 3 days
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    • £0.99

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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    • £0.99

Poppy 'Coral Reef'

Papaver orientale, Oriental Poppy

 Customer Rating

A chance discovery on T&M research grounds has led to the introduction of this spectacular NEW true orientale poppy. Large vibrant flowers, often 5in. across of an intense and vivid coral pink never seen before in true orientale poppies from seed and rarely matched in the entire flower kingdom. Unlike many orientale poppies available, because it has been bred from seed it has consistent vigour, with many flowers over a long flowering period. Also it is not prone to 'flopping over' a fault with many varieties of this type of poppy. It is a long lived perennial making large plants within 3 years. From a late Autumn sowing it will flower in its first summer, coming true from seed. In a mixed orientale poppy trial the bees had apparently been very active as a red flowered hybrid produced several plants of this vivid pink. T&M's breeders got busy and... Coral Reef was born!

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    • 1 packet (45 seeds)

    • Despatch: Within 3 days
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    • £2.99

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 ‘Summer Berries’ 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").
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    • 1 packet (40 seeds)

    • Despatch: Within 3 days
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    • £2.69

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”).
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    • 1 packet (80 seeds)

    • Despatch: Within 3 days
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    • £0.99

Poppy 'Fruit Punch'

Papaver orientale, Oriental Poppy

Bred by T&M's flower breeders, this stunning mixture follows in the footsteps of the customer favourite Coral Reef, just one of the many colours included in this gorgeous mixture. The enchanting large 12cm (5 inch) silky, ruffled blooms are weather resistant, will not flop and stand above strong, dark green clumps of foliage. Fruit Punch comes in a range of captivating shades including vibrant reds, hot pinks, bright oranges and the often elusive plum shades normally only found in Patty's Plum, with each bloom hosting a distinctive deep black centre. This long lasting perennial will look a knockout in borders or as a cut flower. Height: 60-75cm (24-30in).
More info
    • 1 packet (50 seeds)

    • Despatch: Within 3 days
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    • £2.69

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”).
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    • 1 packet (20 seeds)

    • Despatch: Within 3 days
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    • £2.99

Foxglove 'Summer King'

Digitalis x mertonensis

 Customer Rating

Commonly known as the Strawberry Foxglove. This very compact variety produces neat flower spikes with huge, eye-catching strawberry-rose bells. A vigorous variety which is sure to make any early season garden shine, as well as attracting nectar-loving bees. Digitalis Summer King is a naturally occurring cross between the yellow-flowered Digitalis grandiflora and lavender-rose-flowered Digitalis purpurea.

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    • 1 packet (80 seeds)

    • Despatch: Within 3 days
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    • £1.99