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 373 products.
 

Campanula medium (Mixed)

Canterbury Bells, Bellflower

 Customer Rating
Masses of bells in an astonishing range of blues, whites and pinks. A gentle reminder of the cottage garden days. Flowers summer. Height 90-120cm (3-4ft).
More info
    • 1 packet (850 campanula seeds)

    • Despatch: Within 1 days
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    • £2.29

Aquilegia flabellata var. pumila f. kurilensis 'Rosea'

Columbine, Granny's Bonnet, Dwarf Fan Columbine

Extremely dwarf plants with attractive, nodding, rose-pink and cream flowers against unusual blue-green, fan shaped foliage. This compact Aquilegia is ideal for planting at the front of borders, in containers or alpine gardens where it will self seed to create handsome drifts. Height and spread: 20cm (8"). More info
    • 1 packet (30 aquilegia seeds)

    • Despatch: Within 1 days
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    • £0.69

Pansy 'True Blue'

Viola x wittrockiana

Brilliant, pure sky blue flowers blending magnificently ,with herbaceous and low growing shrubs and conifers or contrast with yellow, silver and white. Medium- large flowers in great profusion from spring to late summer and autumn.

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

More info
    • 1 packet (40 pansy seeds)

    • Despatch:
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    • £0.99
    • Out of stock

Foxglove 'Silver Cub'

Digitalis purpurea subsp. heywoodii

This unusual foxglove produces silvery foliage coated in a layer of thick hair which feels soft to the touch like puppies' ears! Clear white blooms with delicate spotted centres decorate sturdy, mid-height flower stems on multi-branched plants from May to July. Flowering in its first year from a January sowing, grow Foxglove 'Silver Cub' in sunny or partially shaded borders where it will attract bees and other pollinating insects. Height: 60cm (24"). Spread: 45cm (18"). More info
    • 1 packet (100 foxglove seeds)

    • Despatch: Within 1 days
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    • £1.99

Geranium 'Reflections'

Hardy Geranium, Cranesbill

An increasingly popular cottage garden and border plant now available from seed in this exclusive designer mixture. Only large flowered, border varieties have been selected in shades of blue, purple, pink and white, including 'Splish Splash'T, a striking blue and white bicolour. Without doubt the cheapest way to grow a wonderful range of colours. Flowers early to mid summer. Heights range from 30-60cm (12-24in). More info
    • 1 packet (10 geranium seeds)

    • Despatch: Within 1 days
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    • £3.99

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 meconopsis seeds)

    • Despatch: Within 1 days
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    • £0.99

Wildflower 'Honey Bee Flower Mixed'

 Customer Rating
A blend of 19 species of nectar and pollen rich annual and perennial wildflowers, which are proven favourites of honey bees in our gardens. Our special selection provides forage over a long season making it an invaluable food source for bees. This colourful wild flower mix is perfect for those gardeners with their own honeybee hives, or those wishing to encourage bees into their gardens. Height: 60cm (24"). Spread: 30cm (12").

1 gram of seed sows an area of approximately 1 square metre.


Useful links:

How to sow wildflower seeds

More info
    • 1 packet (1 gram)

    • Despatch: Within 1 days
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    • £2.29

Geum flore-plena 'Blazing Sunset'

Avens

A striking variety from T&M breeding. Classified as a perennial but from an early sowing it acts like an annual! Prolific, early flowering, fully double scarlet flowers up to 50% larger than other varieties, over a long period. Fantastic in the border and cottage garden, and a dazzling cut flower. Fleuroselect Quality Award.
More info
    • 1 packet (15 geum seeds)

    • Despatch: Within 1 days
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    • £3.99

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

Auricula 'Viennese Waltz'

Primula auricula

A spectacular selection of this Victorian favorite. Bright attractive clusters of bicoloured flowers stand above mid-green foliage, looking spectacular grown in individual pots or mixed together in spring flowering containers. More info
    • 1 packet (25 auricula seeds)

    • Despatch: Within 1 days
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    • £0.99

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 silene seeds)

    • Despatch: Within 1 days
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    • £2.99

Primula japonica 'Mixed'

Japanese Primrose

A hand-blended mix of beautiful Japanese Primulas. Ideal for moist shady borders or beside a pond. Stout stems bear whorls of 2cm (¾ inch) blooms in shades of red-purple, pink and white, often with a contrasting eye. Height: 45-60cm (18-24in). More info
    • 1 packet (50 primula seeds)

    • Despatch: Within 1 days
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    • £0.99