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 18 products.
 

Poppy 'Raspberry Brulee'

Papaver orientale, Oriental Poppy

From T&M’s own breeding comes this mouth watering perennial Oriental Poppy. Exquisite raspberry pink blooms with the delicate texture of tissue paper are decorated with dramatic dark markings at the base of each petal. Poppy ‘Raspberry Brûlée’ adds spectacular colour to early summer borders. By late summer the attractive seed heads also make an eye catching feature in wildlife gardens or cottage garden planting schemes. Height: 70cm (28"). Spread: 50cm (20").
More info
    • 1 packet (40 poppy seeds)

    • Despatch: Within 1 days
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    • £2.49

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.
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    • 1 packet (40 seeds)

    • Despatch: Within 1 days
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    • £2.59

Gaura lindheimeri 'Sparkle White'

This stunning hardy perennial makes a fabulous border plant! Its graceful, slender stems are topped with a flurry of dazzling white, starry blooms that still look fresh and airy at the end of summer. This bushy, clump forming variety has a neat, compact habit that makes it perfect for the front of sunny borders or edging paths as a mini hedge. Once established, Gaura lindheimeri 'Sparkle White' even copes well during periods of drought. Height and spread: 45cm (18"). More info
    • 1 packet (15 seeds)

    • Despatch: Within 1 days
    •  
    • £2.99

Gaillardia aristata 'Arizona Sun'

Blanket Flower

Extremely dwarf, compact mound-forming plants become a mass of radiant red and gold large, daisy-like flowers throughout the summer. Flowers very quickly from seed, so makes a useful addition to perennial borders, or will add interest to bedding displays and containers.
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    • 1 packet (20 seeds)

    • Despatch: Within 1 days
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    • £2.99

Hollyhock 'Halo Mixed'

Alcea rosea, Althaea rosea

 Customer Rating
Colour that's almost 2 metres high! And now Hollyhocks are even more colourful thanks to new Hollyhock 'Halo Mixed', with its glowing eyes to add contrast. These stunning cottage garden perennials make a beautiful cut flower for a vase indoors and the edible flowers can even be added to salads for an attractive, tasty treat. Recognised by the European Fleuroselect panel of experts with a novelty award too. Height: 180cm (71”). Spread: 60cm (24”).

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

More info
    • 1 packet (25 seeds)

    • Despatch: Within 1 days
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    • £0.99

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").
More info
    • 1 packet (30 seeds)

    • Despatch: Within 1 days
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    • £2.99

Agastache hybrida 'Astello Indigo'

  • Fleuroselect Gold Medal
Indulge your senses with the fabulous mint-scented flower-spikes of Agastache hybrid 'Astello Indigo'. The long-lasting, deep blue flower spikes are irresistible to bees and butterflies and make a fabulous addition to borders and containers. This attractive half-hardy perennial is ideal for gravel gardens and wildlife borders, although it is generally grown as an annual in colder areas. Height: 60cm (24"). Spread: 30cm (12").

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

More info
    • 1 packet (15 seeds)

    • Despatch: Within 1 days
    •  
    • £2.99

Pansy 'Padparadja' F2 Hybrid

Viola x wittrockiana

So intense is the effect of its solid orange blooms, it is unlikely there is anything to match it.

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 1 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.
More info
    • 1 packet (15 seeds)

    • Despatch: Within 1 days
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    • £3.99

Dianthus plumarius 'Sweetness Mixed'

Carnation, Pink

A true breakthrough! First year flowering from July to September from an early (February) sowing, producing heavily scented pinks. Dwarf, bushy, spreading plants; ideal for cottage or perennial borders. Easy to maintain - simply trim spent blooms with shears at the end of the season.


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 1 days
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    • £2.39

Geranium 'Horizon Coral Spice' F1 Hybrid

Pelargonium x hortorum, Zonal Geranium, Zonal Pelargonium

A gorgeous new warm colour in geraniums. Large, well rounded, bright coral flower heads above lightly zoned foliage. With vigorous performance, it will flower nonstop until first frosts.
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 (6 seeds)

    • Despatch: Within 1 days
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    • £0.99

Prunella grandiflora 'Freelander Blue'

Self-heal, Large Self-heal

 Customer Rating

Originating in the mountainous regions of Europe, this vigorous and hardy perennial has been very successfully bred and selected from the wild form. Its lovely flower spikes of deep violet-blue blooms make a great choice for the front of borders and will serve as excellent ground cover as well.

Often known as 'self heal' - the foliage was used to stop bleeding in medieval times - this charming plant will attract bees and butterflies to the garden.

More info
    • 1 packet (35 seeds)

    • Despatch: Within 1 days
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    • £2.99