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 15 products.
 

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 April 2014
    •  
    • £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)
More info
    • 1 packet (200 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.49

Agapanthus 'Headbourne Hybrids'

African Blue Lily

Free flowering with large round heads of true blue flowers growing into a thick established clump. Truly hardy. Bold, attractive bulbous plants for sheltered borders, tubs, containers etc. Elegant strap shaped leaves and bunches of blue flowers on 2-3ft long sterns. The dried seed head can be used for winter decoration. There is considerable evidence that these hybrids are really hardy in many parts of the British Isles, particularly where good drainage is possible. They flower freely in their second year and generally make very good garden plants, growing into a thick established clump. Flowers mid/late summer. More info
    • 1 packet (22 seeds)

    • Despatch: By end of April 2014
    •  
    • £3.99

Penstemon x hybrida 'Lilac Frost'

Beard Tongue

Probably the most winter-hardy, resilient Penstemon we have ever found! Bushy mounds of deep green foliage are enhanced by unusual frosty white, bicoloured blooms. Flowers throughout the summer in borders or large containers.
More info
    • 1 packet (50 seeds)

    • Despatch: By end of June 2014
    •  
    • £1.49

Aquilegia caerulea

Rocky Mountain Columbine, Colarado Blue Columbine, Granny's Bonnet

Possibly the most beautiful Aquilegia of all. With glorious light to deep blue flowers 2-3in across sometimes fetching bi-coloured with white. An excellent border perennial, grand for cutting, in bloom for several weeks and will grow in sun or light shade. Flowers late spring/early summer. Height: 30-35cm (12-14in)
More info
    • 1 packet (100 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.99

Nepeta nervosa 'Blue Moon'

Catmint

A neat, dwarf, bushy, habit, with large dense blue flower spikes, over a very long period. Quick to flower in 12-16 weeks from an April sowing. Ideal for borders and containers. Height: 30-40cm (12-16in).
More info
    • 1 packet (30 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.69

Streptocarpus x hybridus 'Dibley's Dragon Mixed' F1 Hybrid

Cape Primrose

T&M are delighted to be able to offer this spectacular mixture. Dragon Mixed is a high quality uniform mixture in a wide range of exciting and unique colours and patterns. Bred by Streptocarpus specialist and RHS Gold medal winners Dibley's Nurseries. More info
    • 1 packet (25 seeds)

    • Despatch: By end of April 2014
    •  
    • £1.89

Primula vialii

An utterly different and unique primula. Dainty, eye-catching, kniphofia-like flowerscape with carmine, rose and purple mingled together. Will grow in an open border but best in semi-shade.
More info
    • 1 packet (100 seeds)

    • Despatch: By end of April 2014
    •  
    • £1.49

Teasel

Dipsacus fullonum, Dipsacus sylvestris

Tall, striking, thistle-like plants with serrated leaves and large spiny flower heads. A valuable source of nectar for bees and butterflies, as well as attracting many seed-eating birds to your garden or wild flower meadow. Makes attractive, dried, cut flowers.
More info
    • 1 packet (100 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.69

Catananche caerulea

Blue Cupidone, Cupid's Dart

An easy to raise, free flowering plant for the front of the border. The brilliant sky blue flowers are freely produced and are excellent for cutting, lasting a long time in water. They can also be dried for winter decoration. Will flower the same year from a late winter sowing. Flowers summer. Height 60cm (2ft).
More info
    • 1 packet (100 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.69

Viola x williamsiana 'Sweeties'

Pansy, Viola williamsii

 Customer Rating
The best ever dwarf Viola for containers! A unique mixture of small, attractive bicoloured flowers resembling tiny sweets. Compact plants are smothered in masses of flowers over a very long period, making it ideal for summer or winter flowering bedding displays.

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

More info
    • 1 packet (25 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.69

Campanula rotundifolia

Harebell, Scottish Bluebell, Bellflower

The pretty British Harebell otherwise known as the bluebell of Scotland, produces thin wiry stems of nodding pale blue flowers. An easy, charming plant for rockery, border etc. More info
    • 1 packet (1000 seeds)

    • Despatch: By end of April 2014
    •  
    • £2.99