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 7 products.
 

Lewisia 'Safira Collection'

  • New in 2015
This collection of hardy lewisia plants offers a unique colour mix and the longest flowering season we've seen - continuous colour from March to November! We've saved the stripes and picotees for other mixes in our range, to bring you a classy colour collection for use in sunny borders, rock gardens and patio containers. This low growing hardy perennial is covered in masses of starry blooms as soon as spring gets going, and continues to perform right through to late autumn. This sun-loving perennial copes well with our cooler temperatures, but benefits being sheltered from winter rains. Lewisia Safira Collection offer superb performance for very little effort! Height and spread 30cm (12").
More info
    • 3 jumbo plug plants

    • Despatch: By end of October 2015
    •  
    • £14.99
    • 6 jumbo plug plants

    • Despatch: By end of October 2015
    •  
    • £24.99

Wallflower 'Sugar Rush'

Erysimum, Cheiranthus

 Customer Rating
  • 'Best New Bedding Plant' at the Grower of the Year Awards
  • Autumn and spring flowering
  • Super-vigorous
Winner in the 'Best New Bedding Plant' category at the Grower of the Year Awards 2013, this is one of the most exciting wallflowers to emerge in recent years. Dense, fragrant flower spikes in shades of cream, yellow, red and purple appear not only in the spring, but throughout the autumn too, blooming in just 6 weeks from an August planting! With a delightful sweet fragrance and compact, multi-branching habit, Wallflower 'Sugar Rush' is perfect for beds, borders, containers and window boxes, creating a mass of colour and scent when much of the garden is dormant. Versatile and undemanding, wallflowers are tough enough to cope in even the poorest soils. Height and spread: 30cm (12").
More info
    • 36 wallflower plug plants

    • Despatch: By end of September 2015
    •  
    • £11.99
    • 72 wallflower plug plants

    • Despatch: By end of August 2015
    •  
    • £17.99

Iris ensata 'Collection'

Japanese Iris, Iris kaempferi

Spectacular, exotic blooms are carried above narrow, strap-like foliage in summer. Iris ensata enjoy a reliably moist soil and positively thrive in bog gardens or at the margins of a pond or stream. The long stems of these low maintenance perennials also make them ideal for cutting for an eye-catching vase indoors. Height: 90cm (36"). Spread: 30cm (12"). More info
    • 4 bare root Iris plants

    • Despatch: By end of January 2016
    •  
    • £13.99
    • 8 bare root Iris plants

    • Despatch: By end of January 2016
    • SAVE £8.99  
    • £27.98 £18.99

Sedum 'Matrona' (Large Plant)

Sedum telephium, Stonecrop

Sedum will attract butterflies to the garden in their droves. Sedum plants are long-lasting, hardy and drought tolerant. Sedum 'Matrona' forms a clump of foliage, with a unique bronze tinge, contrasting beautifully with its pink autumn blooms. Sedum will thrive in hot, sunny borders, and are ideal for beginners. Their autumn flowering period is welcomed, bringing new colour to the garden as summer bedding displays fade away! Height: 75cm (30"). Spread: 30cm (12"). More info
    • 1 x 1 litre potted sedum plant

    • Despatch: By end of August 2015
    •  
    • £7.99
    • 1 x 2 litre potted sedum plant

    • Despatch: By end of August 2015
    •  
    • £11.99
    • 2 x 1 litre potted sedum plants

    • Despatch: By end of August 2015
    •  
    • £12.99
    • 2 x 2 litre potted sedum plants

    • Despatch: By end of August 2015
    •  
    • £18.99

Poppy 'Gartenzwerg' (Large Plant)

Papaver nudicaule, Arctic Poppy, Icelandic Poppy

Icelandic Poppies are absolutely glorious! The flowers of Poppy 'Gartenzwerg' are silky and glisten in the sun, in lovely shades of coral pink and red. The late spring flowers of this pretty biennial are some of the first for the mixed border, and will certainly attract comment from the neighbours!Icelandic Poppies are ideal for cutting, thanks to the upright blooms and durable stems. When cutting the blooms for indoors, sear the bottom of the stems over a naked flame to seal them. Height and spread: 30cm (12"). More info
    • 1 x 1 litre potted poppy plant

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 2 x 1 litre potted poppy plants

    • Despatch: By end of September 2015
    •  
    • £16.99

Sedum 'Matrona' (Large Plant)

Sedum telephium, Stonecrop

Sedum will attract butterflies to the garden in their droves. Sedum plants are long-lasting, hardy and drought tolerant. Sedum ‘Matrona' forms a clump of foliage, with a unique bronze tinge, contrasting beautifully with its pink autumn blooms.

Sedum will thrive in hot, sunny borders, and are ideal for beginners. Their autumn flowering period is welcomed, bringing new colour to the garden as summer bedding dipslays fade away! Height: 75cm (30"). Spread: 30cm (12").

More info
    • 1 x 3.5 litre potted sedum plant

    • Despatch: By end of August 2015
    •  
    • £10.99
    • 2 x 3.5 litre potted sedum plants

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

Sanguinaria canadensis f.multiplex

Bloodroot, Red Puccoon

Although rarely seen in the garden centres, Sanguinaria canadensis f.multiplex is a beautiful plant for a damp shady spot in the garden. Small white blooms that resemble tiny waterlilies emerge from between the blue-green leaves in spring. The elegant flowers are delicately scented with a light, spicy fragrance. Interestingly the rhizomes of this hardy perennial exude red sap when cut, giving the plant it's common name of Bloodroot. Perfect for woodland gardens, shaded borders and rockeries. Height: 15cm (6"). Spread: 30cm (12"). More info
    • 1 bare root sanguinaria plant

    • Despatch: By end of March 2016
    •  
    • £19.99
    • 2 bare root sanguinaria plants

    • Despatch: By end of March 2016
    • SAVE £9.99  
    • £39.98 £29.99