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 31 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
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 comes quite true from seed and has been given an Award of Garden Merit by the Royal Horticultural Society. 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
Rudbeckia Fulgida Goldsturm

Rudbeckia fulgida var. sullivantii 'Goldsturm'

Coneflower, Black-eyed Susan
A profusion of bright flowers up to 5in across on bushy plants. More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Exotic : Giant Viper's Bugloss (Echium Pininana)

Echium pininana

Tower of Jewels, Giant Viper's Bugloss, Tree Echium, Echium pinnifolium
 Customer Rating

No wonder this is also called Tower of Jewels or 'Pride of Tenerife! Exceptionally tall flower spikes packed with either rose or purple-blue flowers, interspersed with silver-green lanceolate leaves.

 More info
    • 1 packet (25 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.79
Digitalis Purpurea Alba

Foxglove 'Alba'

Digitalis purpurea, Digitalis purpurea f. albiflora
Marvellous large pure white spikes, a rare and unusual colour. Magnificent in the border in sun or part shade and very useful as a cut flower. Flowers early summer. More info
    • 1 packet (150 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.49
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
Meconopsis Betonicifolia Hensol Violet

Meconopsis betonicifolia 'Hensol Violet'

Himalayan Blue Poppy, Tibetan Blue Poppy
Indulge yourself by growing this rare, mauve form of the exquisite Himalayan Blue Poppy. Scintillating, silky blooms aloft downy foliage give an absolutely breathtaking effect when planted in groups in shady borders and woodland areas. A collector's item for the border. Prefers a deep, moist, loamy soil in part shade. More info
    • 1 packet (40 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Lupin Regalis Band Of Nobles Mixed

Lupin 'Band of Nobles Mixed'

Lupinus
With an exciting and colourful range of robust, densely packed flower spikes produced in early summer, this traditional lupin will enhance any garden scene and looks particularly at home in the cottage garden. Height: 90-120cm (3-4ft). More info
    • 1 packet (35 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.49
Aquilegia Chrysantha Yellow Star

Aquilegia chrysantha 'Yellow Star'

Columbine, Granny's Bonnet
Large long spurs of lovely fragrance. More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.49
Echinacea Purpurea Magnus

Echinacea purpurea 'Magnus'

Coneflower
An outstanding selection of the 'Cone Flower', distinguished by the warm bright colour of its exceptionally large flowers. The slender elegance and formality of its petals give it a style that will add class to larger flower arrangements. In the border it is no less valuable on account of its robust strong stems and general vigour which give 'Magnus' good wind and weather resistance. Flower in their first season from an early sowing. Flowers mid summer to winter. Height 1m (36 inches). More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Gaura Lindheimeri

Gaura lindheimeri

White Gaura, Lindhemier's Beeblossom
Spikes of ¾in white flowers, tinged in pink. Long flowering in the border and as cut flowers. Cannot be sent to Hawaii. More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.29
Aquilegia Caerulea

Aquilegia caerulea

Rocky Mountain Columbine, Colarado Blue Columbine, Granny's Bonnet
Possibly the most beautiful Aquilegia of all. With glorious light to deep blue flowers 2-3in across sometimes fetching bi-coloured with white. An excellent border perennial, grand for cutting, in bloom for several weeks and will grow in sun or light shade. Flowers late spring/early summer. Height: 30-35cm (12-14in) More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99