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 32 products.
 

Cyclamen 'All-the-year-round Flowering Mixed'

A balanced mixture of hardy garden varieties thriving in shade or woodland, chosen from species flowering at most periods of the year. Height: 8-15cm (3-6in). More info
    • 1 packet (16 cyclamen seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

Hellebore 'Washfield Doubles'

Helleborus x hybridus

Breathtaking, double-flowered Hellebores from the Washfield collection, bred to perfection, adding sheer delight to your borders early each year. T&M are proud to continue the breeding work started over 20 years ago by Hellebore specialist Elizabeth Strangman, and want to share her passion for these intriguing plants with you. These delightful doubles are in a wide colour range including yellows, greens, blacks, reds, apricots and much more. Height: 45-60cm (18-24in).

Please note that stock of this item will be available from June 2012.
More info
    • 1 packet (10 hellebore seeds)

    • Despatch: By end of May 2016
    •  
    • £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 end of July 2015
    •  
    • £3.29

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

    • Despatch: Within 1 days
    •  
    • £2.99

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: Within 1 days
    •  
    • £4.69

Hellebore (Christmas Rose)

Helleborus niger

Surprise your friends and neighbours with an arrangement of Christmas roses for the festive season! Beautiful blooms at a time when little else is available. From seed you can have a group quite close together in a way which would cost you a great deal if you bought the plants. They flower in about three years from seed and invariably produce stronger, healthier plants.

More info
    • 1 packet (40 hellebore seeds)

    • Despatch: Within 1 days
    •  
    • £0.69

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: Within 1 days
    •  
    • £2.99

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
    •  
    • £0.99

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: Within 1 days
    •  
    • £0.99

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 Castle, South Wales, where it was discovered by Lady Henderson. Height: 90 (36"). Spread 30cm (12"). More info
    • 1 packet (40 meconopsis seeds)

    • Despatch: By end of July 2015
    •  
    • £2.99