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 21 products.
 

Cyclamen hederifolium 'Mixed'

Cyclamen neapolitanum, Sowbread

Carmine, light rose and white flowers with beautiful silver-marbled deep green foliage. Flowers often appear before the foliage. Evergreen very hardy, and will self seed.
More info
    • 1 packet (30 cyclamen seeds)

    • Despatch:
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    • £0.99
    • Out of stock

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

Sedum 'Rock Garden Mixed'

Sedum rupestre, Sedum spathulifolium, Sedum album, Sedum aizoon, Sedum reflexum, Stone Orpine, Reflexed Stonecrop, Spoon-leaved Stonecrop, White Stonecrop

Harvest permitting includes: S. reflexion, S. spathulifolium, S. album hybrids, S. aizoon and many others in full foliage and flowering colour range.

More info
    • 1 packet (300 sedum seeds)

    • Despatch: Within 1 days
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    • £0.99

Erigeron karvinskianus 'Profusion'

Erigeron karvinskianus, Fleabane, Mexican Fleabane

Lovely subject for hanging baskets, window boxes, patio tubs. Flowers within 3 months.
More info
    • 1 packet (200 erigeron seeds)

    • Despatch: Within 1 days
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    • £3.49

Geranium bohemicum 'Orchid Blue'

Hardy Geranium, Cranesbill

Geranium 'Orchid Blue' is a selection by Thompson & Morgan from the species Geranium bohemicum. A short-lived border and ground cover plant which self-seeds to keep continuity. Masses of 2cm (¾in.) flowers of orchid-blue, veined in purple-violet, borne on bushy plants. Makes a delightful show, particularly when situated in a sunny position in the border. Flowers summer. Height 30-45cm (12-18in).

More info
    • 1 packet (8 geranium seeds)

    • Despatch: Within 1 days
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    • £3.49 £0.99

Saponaria ocymoides

Tumbling Ted, Rock Soapwort

Spreading rockery, or paving plant, myriads of ½in pink flowers.

More info
    • 1 packet (25 saponaria seeds)

    • Despatch: Within 1 days
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    • £0.99

Dianthus deltoides 'Micro Chips'

Carnation, Maiden Pink

A true first year flowering perennial Dianthus that is very quick to bloom. Dwarf deep green foliage, soon becomes smothered in a spectacular mixture of dainty serrated edged flowers. Stunning in containers, used as ground cover at the front of borders or added to rockeries. Height: 15-20cm.

Culinary note: Use the clove like tasting petals for adding to cakes, either for flavour or decorating, suitable for soups, salads and sauces too. For more details about edible flowers click here.

More info
    • 1 packet (80 dianthus seeds)

    • Despatch: By end of July 2016
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    • £0.99

Pansy 'Singing the Blues'

Viola x wittrockiana

This mixture of four enchanting colours, in shades and contrasts of blue, are not just pretty but the most sensational breakthrough in Violas for a decade. They were specifically bred for containers, baskets and ground cover, possessing a unique trailing habit. Above all they are wonderfully fragrant with a gorgeous, pervading sweet scent. Flowers appear in abundance and because they are tolerant to cold and heat, they can be grown all year round. Height: 2-3in Flowers spring/summer.


Culinary note: Some parts of these flowers are edible. The crystallised petals are great decorations for cakes and cookies, or they can be added straight to green salads for an injection of colour. For more details about edible flowers click here.

More info
    • 1 packet (25 pansy seeds)

    • Despatch: By end of July 2016
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    • £0.99

Erodium pelargoniflorum 'Sweetheart'

Heron's Bill

 Customer Rating
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 erodium seeds)

    • Despatch:
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    • £0.99
    • Out of stock

Prunella grandiflora 'Freelander Blue'

Self-heal, Large Self-heal

 Customer Rating

Originating in the mountainous regions of Europe, this vigorous and hardy perennial has been very successfully bred and selected from the wild form. Its lovely flower spikes of deep violet-blue blooms make a great choice for the front of borders and will serve as excellent ground cover as well.

Often known as 'self heal' - the foliage was used to stop bleeding in medieval times - this charming plant will attract bees and butterflies to the garden.

More info
    • 1 packet (35 prunella seeds)

    • Despatch: Within 1 days
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    • £2.99

Helianthemum Collection

Rock Rose, Sun Rose

Showy dwarf evergreen shrubs which spread quickly over rocks and slopes and make ideal ground cover. The attractive foliage is smothered from late spring with masses of 2.5cm (1 inch) flowers resembling wild roses in pink, lemon, copper, red, purple and white. They love the sun and stand hot, dry conditions very well. Height: 9-12 inches.
More info
    • 1 packet (250 helianthemum seeds)

    • Despatch: Within 1 days
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    • £2.19 £0.99

Aubrieta 'T&M Mixed Hybrids'

Aubretia

A very special selection of large-flowered Aubretia with a rich colour range. They cascade and spread with vigorous determination. Suitable for rockeries, borders, edging paths, planters etc. Flowers early spring. Spread 18-24in.
More info
    • 1 packet (400 aubretia seeds)

    • Despatch: Within 1 days
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    • £1.99