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 36 products.
 
Salvia coccinea 'Summer Jewel Red'

Salvia coccinea 'Summer Jewel Red'

Scarlet Sage
  • NEW in 2013
  • 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 2 Days
    •  
    • £2.49
Silene Laciniata Jack Flash

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 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Exotic : Giant Viper's Bugloss (Echium Pininana)

Echium pininana

Tower of Jewels, Giant Viper's Bugloss, Tree Echium, Echium pinnifolium
 Customer Rating

No wonder this is also called Tower of Jewels or 'Pride of Tenerife! Exceptionally tall flower spikes packed with either rose or purple-blue flowers, interspersed with silver-green lanceolate leaves.

 More info
    • 1 packet (25 seeds)

    • Despatch: Within 2 Days
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    • £3.79
Canna Indica T&M Hybrids

Canna indica 'T&M Hybrids'

Indian Shot Plant

  Customer Rating
Shades of yellow, red and cream with pretty bronze or green foliage. Sow early. More info
    • 1 packet (15 seeds)

    • Despatch: Within 2 Days
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    • £1.49
Lisianthius Nigrescens

Lisianthius nigrescens

Flower of Death
  • NEW in 2013
This rare exotic plant is little known outside its native homeland of Mexico. A choice species, and seldom offered, Lisianthius nigrescens bears long, tubular flowers of the darkest black, on slender, towering stems. This extraordinary perennial makes a dramatic specimen plant and a fascinating talking point that will create interest and wonder at the back of borders. Lisianthius nigrescens is half-hardy but will require winter protection in a frost free environment during the winter months. Height: 180cm (71"). Spread: 50cm (20"). More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Catharanthus Roseus Mediterranean Lilac

Catharanthus roseus 'Mediterranean Lilac'

Vinca rosea, Rosy Periwinkle, Madagascar Periwinkle, Cayenne Jasmine

The first of a new breed in trailing Vincas! Specifically for baskets and containers they are early flowering with large, rounded, overlapping petals forming striking, vivid blooms.

 More info
    • 1 packet (25 seeds)

    • Despatch: Within 2 Days
    •  
    • £0.69
Kniphofia Hirsuta Traffic Lights

Red Hot Poker 'Traffic Lights'

Kniphofia hirsuta, Torch Lily
An intriguing dwarf red hot poker with unusual red, amber and green flower spikes. First year flowering, adding interest to borders and containers. Height: 30-40cm (12-16in). *Sow Sept/Oct to flower the following season. More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.29
Arum Lily

Arum Lily

Zantedeschia aethiopica, Calla Lily
A soothing sight by the waterside, in moist borders or large containers. These robust plants produce glossy foliage shooting like arrows from the base, then from late spring to mid-summer, the beautiful, pure white Arum Lily blooms become a sparkling attraction. Hardy with dry mulch winter protection. More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.99
Alstroemeria Ligtu Hybrids

Alstroemeria 'Ligtu Hybrids'

Peruvian Lily

 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 2 Days
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    • £3.49
Tropaeolum Speciosum

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 2 Days
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    • £3.99
Lobelia Cardinalis 'Queen Victoria'

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 2 Days
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    • £2.49
Geranium Maderense

Geranium maderense

Giant Herb Robert, Madeira Cranesbill
 Customer Rating
Truly amazing! Resembling a small Palm Tree, with a stout trunk and radiating stems of palmate foliage. This species requires some shelter In the garden, or is perfect for a large pot in the conservatory or the greenhouse border. Velvety, magenta pink flowers are produced in panicles aloft the exotic foliage. Height: 90-150cm (3-5ft). More info
    • 1 packet (10 seeds)

    • Despatch:
    •  
    • £1.49
    • Out of stock