Thompson & Morgan

Important delivery notice
The products on this site are only delivered to UK addresses. If you require delivery to another country please visit one of our other sites below.

Refine Results

Refine by..

Email Newsletter

Sign up to our newsletter

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 158 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: Within 1 days
    •  
    • £2.99

Geranium 'World's Top Six Mix'

Pelargonium, Zonal Geranium, Zonal Pelargonium

From the worlds's top geranium breeder 6 of their finest varieties. Each is an 'eyecatcher', exquisite in colour, ultra early, beautiful in form and size of bloom, and where possible has strikingly zoned foliage. They represent the very pinnacle of achievement in the breeders art. Suitable for bedding, border, pot plants, baskets and tubs. Contains 6 separately labelled inner packets each containing 5 seeds.
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 1 packet (30 seeds)

    • Despatch: Within 1 days
    •  
    • £9.99

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 1 days
    •  
    • £3.49

Alstroemeria 'Ligtu Hybrids'

Peruvian Lily

 Customer Rating
Invaluable long-lived border plants in numerous shades of pink, orange and scarlet with distinctive, contrasting stripe. One of the worlds' most popular cut flowers.
More info
    • 1 packet (35 seeds)

    • Despatch: Within 1 days
    •  
    • £3.99

Coreopsis grandiflora 'Presto'

Tickseed

A breeding breakthrough, a true first year flowering perennial Coreopsis, ideal for planting in containers, window boxes or towards the front of borders. Naturally dwarf and compact ball-shaped plants are smothered in double golden yellow blooms all summer.
More info
    • 1 packet (40 seeds)

    • Despatch: Within 1 days
    •  
    • £2.59

Gerbera jamesonii 'T&M Mixed' F2 Hybrid

Barberton Daisy, Transvaal Daisy

Fast growing and early to flower, this special T&M blend of large- bloomed gerbera make spectacular house plants. Perfect for the patio in summer and a sunny windowsill or glasshouse during the cooler months, they'll provide months of vibrant colour. The flowers are of the very best quality and make excellent cut flowers. Height: 30-40cm (12-16"). More info
    • 1 packet (30 seeds)

    • Despatch: Within 1 days
    •  
    • £2.69

Tropaeolum speciosum

Flame Nasturtium, Flame Flower, Flame Creeper

Flame Flower. Gorgeous scarlet flowered climber. Climbs to 180-300cm (6-10ft).
More info
    • 1 packet (10 seeds)

    • Despatch: Within 1 days
    •  
    • £4.69

Sunflower maximiliani

Helianthus maximiliani, Maximilian Sunflower

Often known as the Maximilian Sunflower, this attractive species produces masses of golden yellow, 7cm (3”) wide blooms all the way up the tall stems, which have a sweet chocolate fragrance. Perennial sunflower Helianthus maximiliani makes a stunning addition to the back of borders and a good late summer food source for both birds and butterflies. Height: 250cm (98”). Spread: 100cm (39”).


Companion planting: Try growing sunflowers with chives to deter aphids.


Useful links:

Companion Planting

More info
    • 1 packet (100 seeds)

    • Despatch: Within 1 days
    •  
    • £2.69

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 1 days
    •  
    • £0.99

Rudbeckia 'All Sorts Mixed'

Coneflower, Black-eyed Susan

Made up from the full range of varieties we offer. Excellent for cutting and border. Most in fact are hardy perennials in temperate climates in all but the severest winter.
More info
    • 1 packet (170 seeds)

    • Despatch: Within 1 days
    •  
    • £2.99

Dianthus 'Rainbow Loveliness Improved Mixed'

Carnation, Pink

Years of selection means that we're now able to offer customers this very pretty and unusual-looking Dianthus. Unique blooms with deeply cut petals give Dianthus 'Rainbow Loveliness Improved Mixed' a soft, feathery appearance. These pretty, eye-catching pinks have a strong, sweet fragrance that makes them a delightful cut flower for a vase indoors. Compact and hardy, they will quickly form attractive clumps at the front of borders, or try planting them in containers for a low maintenance display on the patio. Dianthus 'Rainbow Loveliness Improved Mixed' will flower in its first year if sown by the end of February. Height and spread: 30cm (12").


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

More info
    • 1 packet (30 seeds)

    • Despatch: Within 1 days
    •  
    • £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 1 days
    •  
    • £3.99