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 14 products.
 

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 3 days
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    • £2.69

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 3 days
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    • £2.99

Geranium 'Horizon Pink Ice' F1 Hybrid

Pelargonium x hybrida, Zonal Geranium, Zonal Pelargonium

Striking pink geranium. These robust plants are very bushy and free-flowering, creating an eye-catching display in borders or containers. Sow from January to mid-March to produce flowering plants by early summer. 30-35cm (12-14in) More info
    • 1 packet (6 seeds)

    • Despatch: Within 3 days
    •  
    • £1.49

Meconopsis cambrica 'Double Mixed'

Welsh Poppy

Welsh Poppy. An exclusive and rare mix of silky pom-pom blooms in orange, red and yellow. The Welsh Poppy is a breezy perennial for dappled shade, blooming from mid-spring right through to autumn. Occasionally an odd single flower may also appear. More info
    • 1 packet (50 seeds)

    • Despatch: Within 3 days
    •  
    • £1.49

Lobelia cardinalis 'Queen Victoria'

Cardinal Flower, Lobelia fulgens, Lobelia splendens

Tall spikes of deep maroon foliage topped by glowing scarlet blooms bring a welcome splash of late summer colour, when many flowers have already faded. This exotic looking, short lived perennial is ideal for filling gaps in damp borders, and looks spectacular planted beside ponds and streams. Height: 90cm (36”). Spread: 30cm (12”).
More info
    • 1 packet (200 seeds)

    • Despatch: Within 3 days
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    • £2.69

Geranium 'Border Supreme' F2 Hybrid

Pelargonium x hortorum, Zonal Geranium, Zonal Pelargonium

An exclusive blend of high quality bedding Geraniums at a very low price! Robust, free-flowering plants, with many large flower heads in shades of red, rose, pink, salmon and white. An inexpensive way of filling your borders and containers.
More info
    • 1 packet (18 seeds)

    • Despatch: Within 3 days
    •  
    • £2.69

Arctotis 'T&M Hybrids'

African Daisy

Shades of cream, yellow, orange, red, crimson and purple. Beautiful for the border where the flowers are produced in profusion throughout the summer, and excellent for cutting.Silvery/green finely cut foliage. Flowers mid summer to frost. More info
    • 1 packet (70 seeds)

    • Despatch: Within 3 days
    •  
    • £2.99

Geranium 'Horizon Pink Meteor' F1 Hybrid

Pelargonium x hortorum, Zonal Geranium, Zonal Pelargonium

Fabulous geranium which looks just as good in bud as in full flower. The large, bushy, free-flowering plants of Geranium Horizon Pink Meteor are perfect for borders and containers where the spectacular weather-resistant blooms will flower all summer long. Petals have shocking pink undersides with pure white uppers, attractively 'dusted' with pink in the centre and on the edges. More info
    • 1 packet (6 seeds)

    • Despatch: Within 3 days
    •  
    • £3.29

Agastache aurantiaca 'Fragrant Mixed'

Hummingbird Mint

Dense spikes of tasselled, tubular flowers erupt above neat clumps of aromatic foliage. The tall, airy flower spikes make a lovely addition to cottage garden borders where they will attract insects to their dainty blooms.Colourful Agastache aurantiaca 'Fragrant Mixed' is quick and easy to grow, flowering in its first year from sowing - perfect for filling summer containers and plugging gaps in beds and borders! Height: 60cm (24"). Spread: 30cm (12").
More info
    • 1 packet (60 seeds)

    • Despatch: Within 3 days
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    • £2.49

Agastache aurantiaca 'Apricot Sprite'

Hummingbird Mint

Tubular blooms of apricot orange form dense flower spikes above clumps of silvery green, richly aromatic foliage. Agastache aurantiaca 'Apricot Sprite' is compact and quick growing - the perfect choice for beds and containers or filling gaps in borders. Bred and selected by T&M, this free flowering, half hardy perennial has been awarded a Fleuroselect Quality Mark. All this, and it also flowers in its first year from seed! Height: 45cm (18"). Spread: 30cm (12").
More info
    • 1 packet (30 seeds)

    • Despatch: Within 3 days
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    • £2.89

Penstemon barbatus 'Cambridge Mixture'

Beardlip Penstemon, Chelone barbata

A high quality mixture in shades of rose, pink, blue and purple, with grey-green foliage. Superb for containers and bedding with compact, neat habit and flowering only 16-20 weeks after sowing. Flowers summer. Height 30cm (12in).

More info
    • 1 packet (120 seeds)

    • Despatch: Within 3 days
    •  
    • £0.99

Meconopsis cambrica 'Double Mixed' - Kew Collection Seeds

Welsh Poppy

Welsh Poppy. An exclusive and rare mix of silky pom-pom blooms in orange, red and yellow. The Welsh Poppy is a breezy perennial for dappled shade, blooming from mid-spring right through to autumn. Occasionally an odd single flower may also appear. More info
    • 1 packet (40 seeds)

    • Despatch: Within 3 days
    •  
    • £2.99