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.
 
Verbena Bonariensis

Verbena bonariensis

Glandularia, Verbena patagonica
Tall heads of bright, eye-catching rosy lavender, adding a tranquil tropical feel to borders. Height: 120-150cm (4-5ft). More info
    • 1 packet (200 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Achillea Filipendulina Cloth Of Gold

Achillea filipendulina 'Cloth of Gold'

Fern-leaf Yarrow
Achillea ‘Cloth of Gold’ is an indispensible border plant, with flat, plate-like, mustard yellow flower heads carried above finely-cut, ferny foliage. This free flowering perennial is undemanding and easy to grow, making a bright splash of summer colour in borders and meadows. Achillea flowers make a charming cut flower and can be dried for everlasting flowers too. Height: 1.5m (59"). Spread: 45cm (18"). More info
    • 1 packet (500 seeds)

    • Despatch: Within 2 Days
    •  
    • £0.69
Thalictrum Delavayi

Thalictrum delavayi

Chinese Meadow Rue
This choice plant will grace any border with its shimmering sprays of regal mauve with attractive creamy-yellow stamens. Ideal for cutting. Height: 120-150cm (4-5ft). More info
    • 1 packet (40 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.49
Liatris Scariosa Gracious

Liatris scariosa 'Gracious'

Gay Feather, Gayfeather, Blazing Star

Lots of bold pure white spikes. Easy, long lasting, excellent border and cut flower. Height: 90-150cm (3-5ft).

 More info
    • 1 packet (55 seeds)

    • Despatch: Within 2 Days
    •  
    • £0.69
Verbena Bonariensis

Verbena bonariensis - Part of the Alan Titchmarsh Collection

Glandularia, Verbena patagonica
 
  • Tall and tranquil
  • First year flowering

This increasingly popular first year flowering perennial produces robust plants, with wiry stems topped by floating clouds of eye-catching, rosy lavender blooms. Plant Verbena bonariensis amongst other perennials to add height and an air of tranquillity in your borders. Height: 150cm (59"). Spread: 45cm (18").

 More info
    • 1 packet (200 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Datura Metel Double Golden Queen

Datura metel 'Double Golden Queen'

Angels' Trumpet, Downy Thorn Apple

 A dynamic border and container plant with large, beautifully double, frilled flowers of canary yellow. The many flowers are earlier than most varieties and will continue through to frosts. Makes a stunning conservatory plant too. Flowers mid to late summer. Height 140cm (5 feet). More info
    • 1 packet (8 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.99
Datura Metel Double Blackcurrant Swirl

Datura metel 'Double Blackcurrant Swirl'

Angels' Trumpet, Downy Thorn Apple

 A dynamic border, container or conservatory plant with large, beautifully double frilled flowers of blackcurrant and lilac-mauve. The many flowers are earlier than most and continue through to frosts outdoors. Flowers mid summer-autumn. Height 1.4m. (5ft) More info
    • 1 packet (15 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.99