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 373 products.
 

Poppy 'Checkers'

Papaver orientale, Oriental Poppy

First year flowering from an early sowing. Poppy Checkers is easy to raise and very rewarding with pure white silky flowers are flanked within by the deepest black cross. Use as a novel cut flower, as well as for the traditional dried seed heads. Height: 60-90cm (2-3ft).
More info
    • 1 packet (50 poppy seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

Hesperis matronalis 'Alba'

Sweet Rocket

Charming, large spikes of single, white flowers, fragrant in the evening.

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

More info
    • 1 packet (250 hesperis seeds)

    • Despatch: Within 1 days
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    • £2.69

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.
More info
    • 1 packet (15 silene seeds)

    • Despatch: By end of July 2015
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    • £2.99

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.
More info
    • 1 packet (50 malva seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

Auricula 'Douglas Prize Mix'

Primula auricula

World-famous strain producing exotic bicolours, primrose yellow centres with rich velvet surrounds including carmine, maroon-carmine, coral pink, deep orange, maroon-black and many more. Ideal for partially shaded positions on rockeries or borders, or spring flower beds, pots, tubs etc. Flowers early spring. Height 23cm (9in). More info
    • 1 packet (90 auricula seeds)

    • Despatch: Within 1 days
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    • £2.99

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.

More info
    • 1 packet (50 hollyhock seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

Wallflower 'Tom Thumb Mixed'

Erysimum cheiri, Cheiranthus

 Customer Rating
Very wide colour range, excellent in small spaces, tubs, window boxes. Slightly later flowering. Versatile and undemanding, this short lived perennial tends to be grown as a biennial, and is tough enough to cope in even the poorest of soils.
More info
    • 1 packet (200 wallflower seeds)

    • Despatch: Within 1 days
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    • £1.99

Poppy 'Pulchinella Mixed'

Papaver nudicaule, Arctic Poppy, Icelandic Poppy

  • Sturdy stems for cut flowers
A superb mix of dwarf Icelandic poppies boasting large flowers in a vibrant mix of five brilliant colours. The eyecatching blooms are held aloft by sturdy, upright stems that wont flop after cutting, making Poppy 'Pulchinella Mixed' ideal as a cut flower. Vigorous and free flowering, this low maintenance, clump forming biennial can be direct sown for a sea of colourful poppy flowers the following year. Perfect for dotting throughout borders and wildlife gardens, or sowing in bold swathes for maximum impact. Height: 30cm (12"). Spread: 20cm (8").
More info
    • 1 packet (20 poppy seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

Aconitum carmichaelii

Monkshood, Wolf's Bane, Aconitum fischeri

An imposing long flowering, long lived perennial with pyramids of beautiful 2 inch flowers. Aconitum is an excellent border plant easily grown from seed. Rich blue flower spikes add a unique colour to the garden, held aloft delphinium-like foliage. Aconitum spikes also last as a cut flower.
More info
    • 1 packet (50 aconitum seeds)

    • Despatch: Within 1 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 echinacea seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

Astrantia major

Hattie's Pincushion, Masterwort

Silver to rose cushions of flowers, surrounded by a stiff ruff of ray-like bracts of a similar hue. Excellent colour foil. Very long lasting when cut. Height: 60-90cm (24-36in)
More info
    • 1 packet (30 astrantia seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

Verbena bonariensis

Glandularia, Verbena patagonica

Tall heads of bright, eye-catching rosy lavender, adding a tranquil tropical feel to borders. Height: 120-150cm (4-5ft).
More info
    • 1 packet (200 seeds)

    • Despatch: By end of July 2015
    •  
    • £2.99