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 56 products.
 

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
    •  
    • £2.69

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)
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    • 1 packet (35 seeds)

    • Despatch: Within 3 days
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    • £2.69

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

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

Hollyhock 'Nigra'

Alcea rosea, Althaea rosea

 Customer Rating
Tall strong stems bearing chocolate maroon flowers, becoming almost 'black' towards the centre. This is a unique variety creating an impressive impact against most backgrounds. Flowers mid to late summer. Height 5ft.

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

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    • 1 packet (50 seeds)

    • Despatch: Within 3 days
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    • £0.99

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 (12Ó) in the first year and 80cm (32Ó) 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 (31Ó). Spread: 60cm (24Ó).
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    • 1 packet (80 seeds)

    • Despatch: Within 3 days
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    • £0.99

Verbena hastata 'Pink Spires'

Glandularia, Vervain, Verbena hastata f. rosea

A stunning Verbena, enhanced by vivid deep pink flowers borne on well branches spikes. Flowers over a very long period. Adds height to borders as well as making a splendid cut flower. Height: 90-120cm (3-4 feet) More info
    • 1 packet (50 seeds)

    • Despatch: Within 3 days
    •  
    • £2.89

Foxglove 'Glittering Prizes Mixed'

Digitalis purpurea

 Customer Rating

A much sought after old traditional foxglove with flowers much larger than usual which are delightfully and exotically splashed and mottled in a good range of rich colours, purple, lilac, cream, white and rose. Each flower has a large purple blotched throat. A tall, majestic plant flowering somewhat earlier than other varieties. Ideal for the back of the border and a excellent cut flower. Flowers early summer. Height 120-180cm (4-6ft).

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    • 1 packet (300 seeds)

    • Despatch: Within 3 days
    •  
    • £0.69

Malva sylvestris 'Zebrina'

Mallow

 Customer Rating
An easily raised perennial thriving in sun or part shade and producing strong, erect stems crammed with white to pink flowers with purple, almost black 'flamed' markings. Easy, thriving in most soils. A magnificent display. Flowers all summer. Flowers in first year.
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    • 1 packet (50 seeds)

    • Despatch: Within 3 days
    •  
    • £0.99

Echinacea purpurea 'Double Decker'

Coneflower

A very unusual purple-red flowered variety that produces predominantly single flowers in the first growing season, followed by a high percentage of these visually stunning 'twin' flowers in the second season, with the chance that some may even be fully double. These intriguing flowers grace tall, strong stems and make superb long lasting border perennials, attracting many beneficial insects to your garden.
More info
    • 1 packet (20 seeds)

    • Despatch: Within 3 days
    •  
    • £0.99

Geum flore-plena 'Blazing Sunset'

Avens

A striking variety from T&M breeding. Classified as a perennial but from an early sowing it acts like an annual! Prolific, early flowering, fully double scarlet flowers up to 50% larger than other varieties, over a long period. Fantastic in the border and cottage garden, and a dazzling cut flower. Fleuroselect Quality Award.
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    • 1 packet (15 seeds)

    • Despatch: Within 3 days
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    • £3.99

Hollyhock 'Antwerp Mixed'

Alcea ficifolia

A rich cottage garden mixture of colourful pastel shades. The Antwerp blend has attractive and unusual palmate foliage, and is also shown to have the best levels of resistance to the common Hollyhock problem of rust. Excellent for borders, especially planted in groups. Height: 150-180cm (5-6ft).

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

More info
    • 1 packet (50 seeds)

    • Despatch: Within 3 days
    •  
    • £2.99