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 30 products.
 

Delphinium 'Pink Blushes'

  • New in 2015
This Pink Blush is anything but embarrassing! Glorious, tall spikes of evenly spaced, perfectly formed florets in shades of pink, from pastel to magenta! The result of many years of breeding from Terry Dowdeswell, our world-class Delphinium expert in New Zealand, Delphinium 'Pink Blushes' are strong plants with disease resistance and unrivalled garden performance. Height: 1.5m (5'). Spread: 75cm (30").
More info
    • 5 delphinium Postiplug plants

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 10 delphinium Postiplug plants

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

Dianthus 'Gran's Favourite'

Carnation, Pink

This well loved RHS AGM variety is as popular as ever for its white blooms with raspberry picotee edges. The clove scented flowers of Dianthus 'Gran's Favourite' are produced in abundance above a carpet of silvery green foliage. With such a prolific flowering period there will be plenty of blooms to spare for a vase indoors. This super little Pink is perfectly hardy and a makes a lovely addition to the front of cottage garden borders. Height and spread: 40cm (16").


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

More info
    • 5 dianthus Postiplug plants

    • Despatch: By end of August 2015
    •  
    • £9.99
    • 10 dianthus Postiplug plants

    • Despatch: By end of August 2015
    • SAVE £4.99  
    • £19.98 £14.99

Penstemon 'Dark Towers'

Dark bronze semi-evergreen foliage makes the perfect backdrop for the tubular, bright pink flowers of Penstemon 'Dark Towers'. Blooming from midsummer until the first frosts, the long lasting flowers are irresistible to pollinating insects, adding colour to borders long after other summer flowering perennials have faded. This resilient, carefree hardy perennial is undemanding and easy to grow, tolerating almost any position in the garden, regardless of rain or drought, and even resisting slug damage! Height: 75cm (30"). Spread: 40cm (16"). More info
    • 3 penstemon jumbo plug plants

    • Despatch: By end of August 2015
    •  
    • £12.99
    • 6 penstemon jumbo plug plants

    • Despatch: By end of August 2015
    • SAVE £8.99  
    • £25.98 £16.99

Aubrieta 'Dr. Mules Variegata' (Large Plant)

Aubretia

Aubrieta is a useful ground cover, trailing plant, which flowers from late spring and into early summer. Plants are carpeting and can be used as a natural weed control in sunny borders, rockeries or on banks and awkward slopes.

Aubrieta 'Dr Mules Variegated' is a sought after variety with violet-blue flowers, set against evergreen cream-lined foliage, which gives all year round interest. Aubrieta is loved by bees and butterflies, and plants will grow in any well-drained soil and is especially useful for dry, sunny borders. Height: 10cm (4").Spread: 60cm (24").

More info
    • 1 x 1 litre potted aubretia plant

    • Despatch: By end of March 2016
    •  
    • £9.99
    • 2 x 1 litre potted aubretia plants

    • Despatch: By end of March 2016
    •  
    • £16.99

Pulmonaria 'Raspberry Splash' (Large Plant)

Lungwort

Lungwort is a low growing hardy perennial which has long been a favourite in cottage gardens. Pulmonaria 'Raspberry Splash' is a delightful variety with slender, silver spotted foliage. From March to May, clusters of raspberry pink blooms appear above the leaves, and slowly mature through purple to light mauve creating an intriguing tricolour effect. A superb choice for attracting pollinating insects to wildlife areas and creating spreading clumps of groundcover in the shade of trees and shrubs. Height: 30cm (12"). Spread: 45cm (18"). More info
    • 1 x 3 litre potted pulmonaria plant

    • Despatch: By end of August 2015
    •  
    • £11.99
    • 2 x 3 litre potted pulmonaria plants

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

Fuchsia 'Giants Cecile' (Large Garden Ready Plant)

Wide double flowers up to 6cm (2&frac1/2") across in shades of pink and lavender dangle from gently cascading stems. Fill your baskets, window boxes, Flower Pouches and containers with Fuchsia ÔCecile' for a cascade of colour all summer long. Height: 30cm (12"). Spread: 45cm (18").

Useful links:

How to grow fuchsias


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

More info
    • 1 x 3 litre potted fuchsia plant

    • Despatch: By end of August 2015
    •  
    • £9.99
    • 2 x 3 litre potted fuchsia plants

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

Fuchsia 'Holly's Beauty' (Large Garden Ready Plant)

Giant, sculptured flowers in a carousel of pastel pink frills. This fantastic, trailing fuchsia features large blooms of up to 6cm (2? ") across that hang from cascading stems. Fuchsia 'Holly's Beauty' creates a spectacular trailing display for baskets, window boxes, Flower Pouches, and containers. Height: 30cm (12"). Spread: 45cm (18"). More info
    • 1 x 3 litre potted fuchsia plant

    • Despatch: By end of August 2015
    •  
    • £9.99
    • 2 x 3 litre potted fuchsia plants

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

Scabious 'Vivid Violet' (Large Plant)

Scabiosa

A relatively low growing variety with mauve-purple pincushion flowers carried above finely cut foliage. Scabious 'Vivid Violet' is more mildew resistant than many cultivars, and particularly free flowering from July to September. Like all Scabious, the blooms are a magnet for bees and butterflies and make useful cut flowers too. Its low, mounding habit makes this hardy perennial a welcome addition to rockeries and the front of sunny borders. Height: 35cm (14"). Spread: 45cm (18"). More info
    • 1 x 3 litre potted scabiosa plant

    • Despatch: By end of August 2015
    •  
    • £12.99
    • 2 x 3 litre potted scabiosa plants

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

Wallflower 'Bowles's Mauve' (Large Plant)

Erysimum, Cheiranthus

Flowering from February right through to midsummer, this hardy perennial well deserves its RHS AGM. Although relatively short lived, Wallflower ‘Bowles Mauve' makes up for it in sheer flower power, producing masses of mauve flowers above clumps of grey-green, evergreen foliage. Versatile and undemanding, this tough little Eryisimum copes in even the poorest of soils. Perfect for filling beds and containers with long lasting colour. Height: 75cm (30"). Spread: 60cm (24"). More info
    • 1 x 1.5 litre potted wallflower plant

    • Despatch: By end of February 2016
    •  
    • £9.99
    • 2 x 1.5 litre potted wallflower plants

    • Despatch: By end of February 2016
    •  
    • £16.99

Geranium pratense 'Summer Skies'

Hardy Geranium, Meadow Cranesbill

Plant swathes of this gorgeous mauve-pink geranium in your cottage garden borders and enjoy dreamy summer skies all summer long. The double blooms of Geranium pratense 'Summer Skies' may look delicate but this hardy herbaceous perennial is tough and undemanding. Unlike its single flowered relations, this meadow cranesbill does not self seed, so the flowers last even longer. Height: 90cm (36"). Spread: 60cm (24").
More info
    • 1 bare root geranium plant

    • Despatch: By end of November 2015
    •  
    • £12.99

Penstemon 'Czar'

  • Customer favourite
Phenomenal stamina and indifference to rain and drought means that Penstemon 'Czar' will flower each year for an incredible five months. Mesmerising, lilac bells with satiny white throats are carried above semi evergreen foliage. These popular hardy perennials deserve prime spots in the garden or on the patio where they can really show off. Pensham penstemons also boast slug resistance and semi-evergreen foliage, giving an all round winning performance for many years. Height: 90cm (36"). Spread: 45cm (18").
More info
    • 3 penstemon Postiplug plants

    • Despatch: By end of August 2015
    •  
    • £9.99

Wallflower 'Winter Joy'

Erysimum, Cheiranthus

 Customer Rating

Wallflower 'Winter Joy' is a striking fragrant variety with cheery mauve blooms. 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 wallflower jumbo plug plants

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