Thompson & Morgan

Important delivery notice
The products on this site are only delivered to UK addresses. If you require delivery to another country please visit one of our other sites below.

Refine Results

Refine by..

Email Newsletter

Sign up to our newsletter

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 22 products.
 

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

 Customer Rating
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

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:
    •  
    • £0.99
    • Out of stock

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
    •  
    • £3.29

Cyclamen persicum grandiflorum 'Scentsation Mixed'

Florist's Cyclamen, Persian Cyclamen

Lingering Freesia-like fragrance of one plant can fill a room. More info
    • 1 packet (10 cyclamen seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

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
    •  
    • £0.99

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
    •  
    • £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: Within 1 days
    •  
    • £4.69

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

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: Within 1 days
    •  
    • £0.99

Euphorbia longifolia 'Amjillasa'

Euphorbia 'Amjilassa' is one of the most spectacular species of this amazing and diverse family. From a sowing in January/February it grows rapidly, and by July/August the huge, chrome yellow flower heads can be over 12in. across. It also features bright reddish stems which add significantly to the beauty of one of the finest Euphorbia introductions for many years. True from seed, it is a hardy perennial (US to Zone 5), and a stunning border plant of explosive potential. More info
    • 1 packet (15 euphorbia seeds)

    • Despatch: Within 1 days
    •  
    • £1.49 £0.99