Thompson & Morgan

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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.


For beautiful summer flowers browse our range of annual plants.



We have found 3 products.
 

Lobelia cardinalis 'Queen Victoria' (Large Plant)

Cardinal Flower, Lobelia fulgens, Lobelia splendens

Tall spikes of deep maroon foliage topped by glowing scarlet blooms bring a welcome splash of late summer colour, when many flowers have already faded. This exotic looking, short lived perennial is ideal for filling gaps in damp borders, and looks spectacular planted beside ponds and streams. Height: 90cm (36"). Spread: 30cm (12"). More info
    • 1 x 1 litre potted lobelia plant

    • Despatch: By end of April 2016
    •  
    • £9.99
    • 1 x 3 litre potted lobelia plant

    • Despatch: By end of September 2015
    •  
    • £12.99
    • 2 x 1 litre potted lobelia plants

    • Despatch: By end of April 2016
    •  
    • £14.99
    • 2 x 3 litre potted lobelia plants

    • Despatch: By end of September 2015
    •  
    • £19.99

Cosmos atrosanguineus 'Chocamocha'

Chocolate Cosmos, Bidens atrosanguineus

A 'must have' plant for gardening chocoholics! You'll be amazed by the luxurious, velvety blooms in rich cocoa shades that even smell of chocolate. Cosmos atrosanguineus 'Chocamocha' is particularly compact and much shorter than other cultivars, so the red-brown stems won't require staking. Chocolate Plants make as fabulous container plant and associate beautifully with fiery shades in hot coloured perennial borders. Although often grown as an annual, this lovely Cosmos can easily be over-wintered as a perennial when grown in containers and kept in frost free conditions. Height and spread: 30cm (12").
More info
    • 3 cosmos jumbo plug plants

    • Despatch: By end of March 2016
    •  
    • £12.99
    • 6 cosmos jumbo plug plants

    • Despatch: By end of March 2016
    • SAVE £7.99  
    • £25.98 £17.99

Lychnis chalcedonica (Large Plant)

Maltese Cross, Jerusalem Cross

This stiff, upright perennial makes quite a show! Clusters of scarlet star-shaped flowers perch upon tall, stiff stems throughout midsummer, bringing height and vibrancy to the back of sunny borders. Lychnis chalcedonica enjoys a damp, boggy environment and makes a fine addition to bog gardens and the edge of ponds and streams. Commonly known as Maltese Cross, this hardy perennial also holds an RHS AGM. Height: 120cm (48”). Spread: 30cm (12”). More info
    • 1 x 1 litre potted lychnis plant

    • Despatch: By end of April 2016
    •  
    • £9.99
    • 2 x 1 litre potted lychnis plants

    • Despatch: By end of April 2016
    •  
    • £14.99