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 24 products.
 

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: by Monday
    •  
    • £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: by Monday
    •  
    • £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: by Monday
    •  
    • £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: by Monday
    •  
    • £3.69

Streptocarpus x hybridus 'Dibley's Dragon Mixed' F1 Hybrid

Cape Primrose

T&M are delighted to be able to offer this spectacular mixture. Dragon Mixed is a high quality uniform mixture in a wide range of exciting and unique colours and patterns. Bred by Streptocarpus specialist and RHS Gold medal winners Dibley's Nurseries. More info
    • 1 packet (25 streptocarpus seeds)

    • Despatch: by Monday
    •  
    • £2.49

Meconopsis baileyi 'Alba'

Himalayan Poppy, Tibetan Poppy, Meconopsis betonicifolia

  • Rare white Himalayan poppy
Rarely seen, this stunning white form of the Himalayan blue poppy is a real eye-catcher in late spring and early summer. Pure white, silky petals surround golden yellow stamens to form clear, single blooms up to 10cm (4") across. Forming a basal rosette of hairy leaves, Meconopsis baileyi 'Alba' thrives in cool, moist, shady borders and woodland gardens, making a stunning feature when planted en masse. This captivating short-lived perennial is 99% true to type; very occasionally the odd blue flower may appear. Height: 90cm (35"). Spread: 50cm (20").
More info
    • 1 packet (30 meconopsis seeds)

    • Despatch: by Monday
    •  
    • £3.29

Cardiocrinum giganteum

Giant Lily, Lilium giganteum

This astonishing hardy perennial makes a fascinating talking point. The tall stems of the Giant Himalayan Lily tower to 2.5m (98") or more in an awe-inspiring display. With maturity Cardicrinum giganteum is topped with a crown of white Lily-like blooms from June the July. The trumpet shaped flowers have a powerful fragrance, attracting plenty of pollinating insects, before they are replaced by interesting oblong seedpods in late summer. The Giant Himalayan Lily may take 3 or more years to flower but is well worth the wait.

This fascinating plant is monocarpic, meaning that it dies after flowering - but don't be put off, it leaves behind offsets that will flower in 3 to 5 years time. Cardiocrinum giganteum is a most unusual plant that will add a real focal point to lightly shaded exotic gardens and woodland borders. Height: 250 cm (98"). Spread: 45cm (18").

More info
    • 1 packet (40 cardiocrinum seeds)

    • Despatch: by Monday
    •  
    • £0.99

Tropaeolum speciosum

Flame Nasturtium, Flame Flower, Flame Creeper

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

    • Despatch: by Monday
    •  
    • £4.99

Meconopsis baileyi 'Hensol Violet'

Himalayan Blue Poppy, Tibetan Blue Poppy, Meconopsis betonicifolia

The 'must-have' Himalayan 'Blue Poppy' has a rival in this exquisite cultivated form. Bright violet-purple, almost shimmering flowers, with the merest hint of red, make a stunning addition planted in groups in shady borders and woodland areas. This 'collectors plant' still surprises countless poppy-lovers who have never seen this unusual perennial before. Meconopsis betonicifolia 'Hensol Violet' is so named for its origins from Hensol House, Scotland, where it was discovered by Lady Henderson. Height: 90cm (36"). Spread: 30cm (12"). More info
    • 1 packet (40 meconopsis seeds)

    • Despatch: by Monday
    •  
    • £2.99

Tree Peony 'Rockii Mixed'

Paeonia

  • Rarely offered seed
A much sought-after variety. The tissue paper white blooms are splashed with deep burgundy at the base of each petal. There are few plants that can compete with the beauty of a tree peony in full bloom. A mature plant can boast in excess of a hundred exotic blooms, each measuring up to 25cm (10") or more in diameter! These exceptional shrubs are hardy and disease resistant, and will continue to bloom for a lifetime. The exotic flowers of Tree Peony 'Rockii Mixed' are simply breathtaking in borders and make exquisite cut flowers. When grown from seed, tree peonies will reward patient gardeners by blooming 5-7 years from sowing. Height and spread: 150cm (60").

Useful links:

How to plant peonies

More info
    • 1 packet (5 tree peony seeds)

    • Despatch: by Monday
    •  
    • £2.99

Strelitzia reginae (Dwarf) - Exotic Seed Collection

Bird of Paradise

Unparalleled beauty of colour and form. Fantastic, exotic flowers justly famous. Grow them in your own greenhouse. One of the most rewarding of plants, it will take quite a bit of abuse and careless handling. Flowers spring. Height: 60-90cm (24-36in). More info
    • 1 packet (4 strelitzia seeds)

    • Despatch: by Monday
    •  
    • £4.99