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 7 products.
 
Scabiosa Atropurpurea Beaujolais Bonnets

Scabious 'Beaujolais Bonnets'

Scabiosa, Pincushion Flower
An attractive first year flowering perennial, producing bushy plants with clusters of wiry stems clothed in unusual rich burgundy flowers with contrasting paler outer petals and white stamens. Ideal for attracting butterflies to your borders or containers. Height: 50-60cm (20-24in). More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Penstemon Barbatus Cambridge Mixture

Penstemon barbatus 'Cambridge Mixture'

Beardlip Penstemon, Chelone barbata

A high quality mixture in shades of rose, pink, blue and purple, with grey-green foliage. Superb for containers and bedding with compact, neat habit and flowering only 16-20 weeks after sowing. Flowers summer. Height 30cm (12in).

 More info
    • 1 packet (120 seeds)

    • Despatch: Within 2 Days
    • SPECIAL OFFER  
    • £1.49 £0.99
Poppy X Hybridus Summer Breeze Mixed

Poppy 'Summer Breeze Mixed'

Papaver nudicaule, Arctic Poppy, Icelandic Poppy

A first-year-flowering perennial with unbeatable flower power! Up to 100 delicate papery flowers per plant are produced throughout the summer in a mix of yellow, orange and white, creating a long-lasting, free-flowering and colourful border display.

 More info
    • 1 packet (40 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Meconopsis cambrica Double Mixed

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 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.49

Nepeta cataria

Catmint, Catnip

 No cat should be deprived of this! Their reaction to the aromatic silver grey foliage is fascinating. Flower spikes of violet spotted white.

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

 More info
    • 1 packet (225 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.89
Kew : Poppy (Meconopsis) Cambrica Double Mixed

Meconopsis cambrica 'Double Mixed' - Kew Collection Seeds

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 (40 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Nepeta cataria ssp. citrina

Nepeta cataria ssp. citrina

Lemon Catmint, Nepeta cataria 'Citriodora'

 Quite unlike ordinary catmint, handle or squeeze the leaves and they give off a rich lemony fragrancy which pervades the garden with rich flowery perfume on still, warm summer evenings. It's easy to grow and can be treated as either annual or perennial making a good border or summer hedge plant. Fashion conscious cats are taking it up in droves as the 'in' catmint to brush-up against. 'William' who's enthusiasm for catmint has not diminished since his last starring role amongst T&M's ordinary catmint 11 years ago, was persauded (on a full stomach) to pose against these lemons so that you would know about his new found catmint fragrance delight 'Lemon Scented Catmint'.

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

 More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.49