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 4 products.
 
Geranium Wallichianum Buxtons Blue

Geranium wallichianum 'Buxton's Blue'

Geranium wallichianum 'Buxton's Variety', Hardy Geranium, Cranesbill

 This is definitely the star of the perennial geranium family producing flowers virtually non-stop from mid summer to early autumn. The flowers themselves are a delight, a gorgeous clear opal, or Nemophila blue with large white centres, against which the dark stamens and dark veining of the petals contrast beautifully. The plant forms an attractive clump with attractive wedge shaped, silky, deeply toothed leaves, making this a very garden worthy plant even when not in flower. It also comes quite true from seed. Requirements: One of the easiest perennials to cultivate, happy in sun or light shade and any free draining garden soil. More info
    • 1 packet (8 seeds)

    • Despatch:
    •  
    • £1.49
    • Out of stock
Eryngium Planum Blue Hobbit

Eryngium planum 'Blue Hobbit'

Sea Holly, Blue Eryngo
The world's first naturally dwarf variety! Compact plants produce neat, basal rosettes from which emerge decorative, silver-blue stems that form into large, globular flower heads containing hundreds of small blue flowers. Ideal for adding interest to the front of borders or to containers. Seeds sown from November to January require no pre-chilling and will usually flower in their 1st year. More info
    • 1 packet (15 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.49
Campanula Rotundifolia

Campanula rotundifolia

Harebell, Scottish Bluebell, Bellflower

 The pretty British Harebell otherwise known as the bluebell of Scotland, produces thin wiry stems of nodding pale blue flowers. An easy, charming plant for rockery, border etc. More info
    • 1 packet (1000 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Primula Capitata Noverna Deep Blue

Primula capitata 'Noverna Deep Blue'

Asiatic Primrose
First year flowering. Attractive deep blue flower heads, held aloft by intriguing powdery white stems, above contrasting grey-green foliage. Adds an eye-catching display to borders and containers from summer into autumn. Height: 25-30cm (10-12in). More info
    • 1 packet (25 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99