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 40 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.)

More info
    • 1 packet (25 commelina seeds)

    • Despatch: Within 1 days
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    • £0.99

Heteropappus meyendorfii 'Blue Knoll'

Seed of this amazing new garden plant can be sown early in the year* and by the same autumn will be completely smothered in hundreds and thousands of shiny, light reflecting flowers, forming perfect mounds (or knolls) 30cm (12in) high and 45cm (18in) across. During a season when little else is in flower, they are a perfect fit for a change in containers or will brighten up the border, looking like blue charm chrysanthemums. No matter what the weather conditions - torrential rain, snow or frost they continue to look far and away the best, brightest plant in the garden, even right through November. *Sow during January/February to flower in October/November. Sow September/October to flower following September/October. More info
    • 1 packet (50 heteropappus seeds)

    • Despatch: Within 1 days
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    • £0.99

Anemone japonica (Mixed)

Japanese Anemone, Anemone x hybrida, Windflower

Elegant, late summer flowering perennials, producing their gorgeous, well shaped blooms mainly in rose to pink shades for many weeks and providing the perfect end to the summer. Happy in sun or light shade. Flowers late summer/autumn, Height: 60cm-1.2m (2-4-ft). More info
    • 1 packet (30 seeds)

    • Despatch: Within 1 days
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    • £0.99

Rudbeckia occidentalis 'Green Wizard'

Western Coneflower

A very curious and extraordinary plant for the back of borders. Bright green sepals, where most plants have petals and a central, almost black cone. An unusual fresh cut flower, long lasting in water, or use in dried arrangements. Easy to grow, quickly forming a good sized plant with plenty of lush green foliage and always a talking point. Flowers summer. Height: 120-152cm (4-5ft). More info
    • 1 packet (30 rudbeckia seeds)

    • Despatch: Within 1 days
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    • £0.99

Campanula lactiflora 'Dwarf Pink'

Milky Bellflower

Over the past 5 years, T&M's flower breeders' careful selection, brings you the First Pink of this variety, from seed! Not only an attractive soft pink, a dwarf habit, but also first year flowering. Outstanding garden performance. 12in. high in the first year, growing up to 36in. high the following year.
More info
    • 1 packet (200 campanula seeds)

    • Despatch: Within 1 days
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    • £2.99

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 arum seeds)

    • Despatch: Within 1 days
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    • £0.99

Hellebore (Purple-flowered Christmas Rose)

Helleborus purpurascens

Rarely offered for sale as seed! This exquisite Helleborus produces clumps of robust, leathery foliage along with many large blooms, flushed in shades of purple, pink and even slate grey!

More info
    • 1 packet (30 hellebore seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

Meconopsis grandis

Himalayan Blue Poppy

 Customer Rating

Sturdy and long-lived with huge flowers 10-12cm (4-5in) across in a wonderful blue, shot with violet on erect stems.

More info
    • 1 packet (30 meconopsis seeds)

    • Despatch: Within 1 days
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    • £3.99

Meconopsis betonicifolia 'Blue'

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).
More info
    • 1 packet (50 meconopsis seeds)

    • Despatch: Within 1 days
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    • £3.69

Rudbeckia fulgida 'Goldsturm'

Coneflower, Black-eyed Susan

A profusion of bright flowers up to 5in across on bushy plants.
More info
    • 1 packet (100 rudbeckia seeds)

    • Despatch: Within 1 days
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    • £2.99 £0.99

Primula Candelabra Hybrids

An exciting wide ranging mix of these fascinating Primulas which have spikes of very delicate florets appearing in whorls up the stem in a wide range of colours. Thrives in sun or shade. Height: 30-60cm (12-24in). More info
    • 1 packet (80 primula seeds)

    • Despatch: Within 1 days
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    • £3.99