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 Plants


In this range you'll find an impressive selection of perennial plants and biennial plants, which are perfect for beginners and experienced gardeners alike. Also known as herbaceous plants, perennial plants live for 2 or more years and flower every year. Biennial plants live for up to 2 years, flowering profusely in their second year before setting seed and dying. Both are great for beds and spring displays and there are many delightful plants to choose from. Use the selections in the left menu to select the right plants for your garden.



We have found 456 products.
 

Delphinium 'Rising Stars Mixed'

  • Best in class for delphiniums
We've given our customers the chance to get their hands on some very new, very different delphiniums from the world-famous 'New Zealand Hybrids' programme. There are far too many hybrids produced for our supplier to sell, so we've grouped our favourites into an exclusive 'Breeders Mixture', aptly named 'Rising Stars'! This exciting mix of delphinium flowers blends picotees, pastels, singles, doubles and frosted hybrids for a spectacular, towering display. You can even cut some blooms for a striking flower arrangement indoors. Height: 120cm (47?). Spread: 75cm (30?).
More info
    • 4 Postiplug plants

    • Despatch: By end of March 2015
    •  
    • £9.99
    • 8 Postiplug plants

    • Despatch: By end of March 2015
    •  
    • £14.99

Marsh Orchid

Dactylorhiza majalis, Spotted Orchid

Spires of deep pink intricately patterned flowers are carried on tall stems above linear green foliage each summer. These unusual terrestrial Marsh orchids are natives of European marshlands so they are perfectly hardy. Dactylorhiza majalis is surprisingly easy to grow when planted in reliably moist or boggy soils, and you can even try it in containers. Height: 45cm (18"). Spread: 15cm (6"). More info
    • 2 bare root plants

    • Despatch:
    •  
    • £20.99
    • Out of stock

Hyacinth Orchid

Bletilla striata, Bletilla hyacinthina

Beautiful, magenta pink blooms hang from the tips of slender stems. The lovely colours, distinctive fragrance and architectural elegance of the Hyacinth Orchid add a touch of class to damp woodland borders. Although quite slow to spread, once established Bletilla striata is surprisingly easy to grow. Ideal for planting in reliably moist or boggy soils, and you can even try it in containers. Height and spread: 45cm (18"). More info
    • 2 bare root plants

    • Despatch:
    • SAVE œ9.99  
    • £29.98 £19.99
    • Out of stock

Lady's Slipper Orchid

Cypripedium reginae, Showy Lady's Slipper Orchid

A fascinating hardy terrestrial orchid that will create an impressive talking point in your garden. The Lady's Slipper Orchid produces exquisite white blooms with pronounced cerise pink pouches. These unusual orchids are perfectly hardy grown in moist soil in the dappled shade of trees. Height: 75cm (30"). Spread: 30cm (12"). More info
    • 1 bare root plant

    • Despatch:
    •  
    • £19.99
    • Out of stock

Wallflower 'Sweet Sorbet'

Erysimum, Cheiranthus

Wallflower 'Sweet Sorbet' is a striking fragrant variety with amazing streaked flowers that gradually transform from lilac purple to orange as the blooms mature. This evergreen erysimum hybrid has a neat, compact habit making it perfect for beds, borders and containers. Versatile and undemanding, this short lived perennial tends to be grown as a biennial, and is tough enough to cope in even the poorest of soils. Height and spread: 50cm (20"). More info
    • 4 jumbo plug plants

    • Despatch: By end of March 2015
    •  
    • £14.99

Wallflower 'Winter Sorbet'

Erysimum, Cheiranthus

Wallflower 'Winter Sorbet' is a striking fragrant variety with amazing lilac purple blooms that transform to shades of burnt orange in a patchwork of colour as the blooms mature. This evergreen erysimum hybrid has a neat, compact habit making it perfect for beds, borders and containers. Versatile and undemanding, this short lived perennial tends to be grown as a biennial, and is tough enough to cope in even the poorest of soils. Height and spread: 50cm (20"). More info
    • 4 jumbo plug plants

    • Despatch: By end of March 2015
    •  
    • £14.99

Wallflower 'Lemon'

Erysimum, Cheiranthus

Wallflower 'Lemon' is a striking fragrant variety with amazing streaked flowers that gradually transform from mauve pink to lemon as the blooms mature. This evergreen erysimum hybrid has a neat, compact habit making it perfect for beds, borders and containers. Versatile and undemanding, this short lived perennial tends to be grown as a biennial, and is tough enough to cope in even the poorest of soils. Height and spread: 50cm (20?). More info
    • 4 jumbo plug plants

    • Despatch: By end of March 2015
    •  
    • £14.99

Wallflower Collection

Erysimum, Cheiranthus

Evergreen erysimum hybrids with an alluring perfume. Versatile and undemanding, this short lived perennial tends to be grown as a biennial, and is tough enough to cope in even the poorest of soils. Height and spread: 50cm (20").

  • Collection comprises:
  • Wallflower 'Plant World Lemon'
  • Wallflower 'Sweet Sorbet'
  • Wallflower 'Winter Joy'
  • Wallflower 'Winter Sorbet'
More info
    • 12 jumbo plug plants - 3 of each variety

    • Despatch:
    • SAVE œ24.98  
    • £44.97 £19.99
    • Out of stock

Clematis 'Fascination'

Old Man's Beard

  • Try a different type of clematis this season
A superb non climbing, herbaceous clematis that is perfect for scrambling through shrubs, over banks and tumbling down walls. The gently scented violet purple flowers are followed by decorative seed heads for a long lasting display. Clematis 'Fascination' is particularly easy to maintain as it can be cut back to almost ground level each year. Height: 150cm (60”). Spread: 75cm (30”). Pruning group: 3.

Useful links:

How to prune a clematis

More info
    • 1 x 9cm potted clematis plant

    • Despatch: By end of August 2015
    •  
    • £14.99
    • 2 x 9cm potted clematis plants

    • Despatch:
    •  
    • £19.98
    • Out of stock

Rainbow Orchid

Epipactis 'Sabine', Helleborine

  • Hardy and easy to establish

Epipactis 'Sabine' is breathtakingly beautiful. The Rainbow Orchid's exotic blooms are reminiscent of brightly coloured birds. This hybrid form is hardier than other varieties and easy to establish, spreading freely in favourable conditions. Also known as, Helleborine, this exquisite hardy orchid is perfect for shady, moist borders and woodland planting schemes. Height: 30cm (12”). Spread: 25cm (10”).

More info
    • 2 bare root plants

    • Despatch:
    • SAVE £6.99  
    • £25.98 £18.99
    • Out of stock

Pansy 'Matrix Union Jack Mixed'

Viola x wittrockiana

  • Best in class for winter pansy

A quintessential colour mix of red, white and blue that will keep the flag flying in your garden. This versatile variety can be grown as a winter pansy or a summer bedding to give you plenty of colour throughout the year. With a compact, branching habit Pansy 'Matrix Union Jack Mixed' is adaptable to most situations, thriving in beds, borders, hanging baskets or flower pouches®. Height: 20cm (8"). Spread: 23cm (9").

 

Culinary note: Pansy flowers are edible.

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

More info
    • 36 plug plants

    • Despatch:
    •  
    • £12.99
    • Out of stock
    • 72 plug plants

    • Despatch:
    •  
    • £23.98 £16.99
    • Out of stock