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 30 products.
 

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

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: By end of April 2014
    •  
    • £2.69

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: By end of April 2014
    •  
    • £1.49

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: By end of April 2014
    •  
    • £2.99

Lisianthius nigrescens

Flower of Death

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: By end of April 2014
    •  
    • £2.99

Erodium pelargoniflorum 'Sweetheart'

Heron's Bill

This attractive plant resembles an Angel Pelargonum with dainty, violet-veined, white flowers and fragrant foliage when rubbed. Flowering all summer, it creates an impressive ground cover plant for the border or rock garden. More info
    • 1 packet (20 seeds)

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

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

Salvia patens

Gentian Sage

A classic border plant, ideal for adding a cool blue drift to your planting schemes. The attractive, large blue hooded florets are borne on erect stems above toothed foliage. First year flowering, blooms throughout the summer into autumn. Height: 45-60cm (18-24in).
More info
    • 1 packet (15 seeds)

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

Geranium 'Maverick Mixed' F1 Hybrid

Pelargonium, Zonal Geranium, Zonal Pelargonium

Introducing in T&M's opinion, the ultimate top quality garden Geranium. In trials, they are clear winners with outstanding garden performance. Uniform, well-branched, lush foliaged plants bearing multiple stemmed large flowers, perfect in shape and shatter free. The mixture contains 8 colours: white, coral, star, scarlet, pink, salmon, red and light salmon. Makes an ideal pot plant. Flowers can be edible. More info
    • 1 packet (6 seeds)

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

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: By end of April 2014
    •  
    • £2.69

Geranium 'Moulin Rouge' F1 Hybrid

Pelargonium, Zonal Geranium, Zonal Pelargonium

Found to be the most outstanding bedding Geranium in T&M's trials. So vigorous, the plants are smothered in large scarlet blooms throughout the season. Sure to give a glorious display. Ideal for bedding or containers. More info
    • 1 packet (6 seeds)

    • Despatch: By end of April 2014
    •  
    • £3.69