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 62 products.
 

Commelina dianthifolia

Bird-bill Day Flower, Widow's Tears

 Customer Rating

A very rare plant indeed. This is one of the few plants with such intense blue flowers and that will also perform well in the garden. Flowering in its first year with 2.5cm (1in) gentian blue flowers, it then produces tubers and springs back to life the following year with an unceasing display of blooms. Wonderful in containers, rock gardens and the border (regardless of soil conditions). Hardy down to -8/-10C. Flowers summer. Height 15-30cm (6-12in.)

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    • 1 packet (25 seeds)

    • Despatch: Within 3 days
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    • £0.99

Tropaeolum speciosum

Flame Nasturtium, Flame Flower, Flame Creeper

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

    • Despatch: Within 3 days
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    • £4.69

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.
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.
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    • 1 packet (6 seeds)

    • Despatch: Within 3 days
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    • £3.69

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.
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.
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    • 1 packet (18 seeds)

    • Despatch: Within 3 days
    •  
    • £2.69

Dichondra argentea 'Silver Falls'

Silver Ponyfoot

 Customer Rating

Vigorous growth displays true cascading plants with attractive glistening silver foliage and stems. Excellent added to mixed containers or creates a stunning basket plant on its own. Height: 5-7.5cm (2-3 inches). Spread/Trailing 90-120cm (3-4 feet).

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    • 1 packet (10 seeds)

    • Despatch: Within 3 days
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    • £3.99

Tacca chantrieri 'Nivea'

Cat's Whiskers, Devil Flower, Bat Plant

This rare white form of the ever popular Bat Plant offers shiny, dark green leaves and in 2-3 years when mature, magnificent white, green veined blooms with long tentacles. A thought- provoking plant for the home or conservatory. More info
    • 1 packet (8 seeds)

    • Despatch: Within 3 days
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    • £4.99

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.
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 3 days
    •  
    • £3.49

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: Within 3 days
    •  
    • £3.29

Viola hybrida 'Rose Shades'

Pansy

A delightful bushy, compact and free flowering variety in delicious rose shades. Each bloom has an attractive yellow eye and darker whiskers, plus the added bonus of a sweet fragrance. Ideal for planting in spring or summer borders and containers. Height: 15-25cm (6-10in).

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

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    • 1 packet (30 seeds)

    • Despatch: Within 3 days
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    • £3.69

Meconopsis betonicifolia

Himalayan Blue Poppy, Tibetan Blue Poppy

 Customer Rating
Is there a more beautiful bloom in the entire flower kingdom then the famous Blue Poppy? It is only to be expected that an elusive, magical flower like this is a little harder to grow. The secret with this plant is to grow cool and well shaded. Height: 60-90cm (24-36in).
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    • 1 packet (50 seeds)

    • Despatch: Within 3 days
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    • £2.99

Foxglove 'Candy Mountain'

Digitalis purpurea

Foxglove Candy Mountain is totally unique as it is the first upward facing foxglove from seed. This unusual characteristic enables you, and the bees, to peep inside the stunning rose pink blooms and view their delightful freckled throats, which appear all the way around the stems. These flower stems are so strong, sturdy and erect that in breeding trials Candy Mountain was given the nickname 'Viagra'! Ideal for planting in drifts, creating a colourful display towards the middle or back of your perennial or cottage garden borders. Height: 90-140cm (36-56 inches).
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    • 1 packet (200 seeds)

    • Despatch: Within 3 days
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    • £2.69

Rose multiflora nana perpetua 'Garden Party' (Miniature Rose)

Rosa

 Customer Rating
This lovely miniature rose is bred for improved germination making it easy to grow from seed. Flowering in its first year from an early sowing, Rose multiflora nana perpetua 'Garden Party' produces wide, open blooms in delicate shades of rose and pale pink. Perfect for edging beds and borders or growing in containers as an attractive centre piece for the patio table. Height: 25cm (10"). Spread: 35cm (14").

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


Companion planting: Try growing roses with garlic, chives, thyme or mint to help deter aphids and blackfly.


Useful links:

Companion Planting

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    • 1 packet (20 seeds)

    • Despatch: Within 3 days
    •  
    • £2.99