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 11 products.
 

Dianthus 'Scents of Summer Pink Peony'

Carnation, Pink

  • New in 2015
  • T&M Exclusive
  • We've put the scent back into garden carnations!

Part of the 'Scents of Summer' series, Dianthus 'Pink Peony' is the pick of the bunch. The crested magenta blooms have a deep, rich fragrance, just like the old fashioned varieties, but with modern vigour and strong garden performance which continues throughout the season. Look forward to an abundance of strong stemmed blooms from this hardy garden pink, which make superb cut flowers. Perfect for edging pathways and borders or brightening up patio containers with long lasting colour. Height and spread: 30cm (12").


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 October 2015
    • SAVE £5  
    • £12.99 £7.99
    • 10 dianthus Postiplug plants

    • Despatch: By end of October 2015
    • SAVE £6  
    • £17.99 £11.99

Wallflower 'Winter Party'

Erysimum

The richly fragrant blooms of Wallflower ‘Winter Party’ create a tapestry of colour in shades of burnt orange and mauve. 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: 30cm (12").
More info
    • 6 wallflower jumbo plug plants

    • Despatch: By end of September 2015
    •  
    • £14.99
    • 12 wallflower jumbo plug plants

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

Oxalis 'Sunny' (Large Plant)

Shamrock, Sorrel

The Burgundy Shamrock is versatile, and can be used in summer patio pots, bedding, borders, rockeries, or beneath trees and shrubs. Oxalis 'Sunny' is particuarly handsome, with leaves carrying in burgundy and ruby colourings.

The rich foliage is accompanied by tubular pink flowers from spring to summer. In very mild areas, Oxalis can be grown in sheltered borders or patio pots. The spring foliage looks especially pretty against spring bulbs. Height: 20cm (8"). Spread: 30cm (12").

More info
    • 1 x 2 litre potted oxalis plant

    • Despatch: By end of May 2016
    •  
    • £9.99
    • 2 x 2 litre potted oxalis plants

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

Oxalis triangularis 'Burgundy Wine' (Large Plant)

Shamrock, Sorrel

The handsome ornamental foliage of this burgundy shamrock is rich burgundy-red with separate triangular shaped lobes. With an attractive summer display of tubular pink flowers, this frost tender perennial oxalis makes a delightful container plant for a conservatory or bright windowsill. In very mild areas Oxalis triangularis 'Burgundy' can be grown in sheltered borders or alpine gardens. Height: 20cm (8"). Spread: 30cm (12"). More info
    • 1 x 2 litre potted oxalis plant

    • Despatch: By end of May 2016
    •  
    • £9.99
    • 2 x 2 litre potted oxalis plants

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

Dianthus deltoides 'Arctic Fire'

Carnation, Maiden Pink

  • Ground cover pinks

Long lasting, white jagged-edged petals with a fiery red eye smother this dwarf hardy perennial throughout summer. Dianthus deltoides 'Arctic Fire' forms neat clumps of silver green foliage that makes stunning ground cover and looks superb as a path edging or dotted throughout rockeries. Height: 20cm (8"). Spread: 30cm (12").


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

More info
    • 36 dianthus plug plants

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

    • Despatch:
    • Double up 36 to 72 for £5 extra  
    • £23.98 £16.99
    • Out of stock

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 September 2015
    •  
    • £7.99
    • 2 x 1 litre potted sedum plants

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

Helianthemum 'Peachy Keen'

Rock Rose, Sun Rose

  • New in 2015
  • T&M Exclusive

Giving you a glorious display of colour from spring to midsummer, these Rock Roses are both versatile and trouble free. Our new peach flowered variety, Helianthemum ‘Peachy Keen', has an overwhelming abundance of petals, which further boosts the display in your garden. This tough, hardy and drought resistant alpine, will produce a second flush of flowers in late summer, if pruned after the first blooming. ‘Peachy Keen' can be used as groundcover or an addition to a rockery, either way, it will be also loved by bees and other insects. . Height: 20cm (8"). Spread: 30cm (12"). Evergreen/semi-evergreen.

More info
    • 5 helianthemum jumbo plug plants

    • Despatch: By end of September 2015
    •  
    • £14.99
    • 10 helianthemum jumbo plug plants

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

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 September 2015
    •  
    • £10.99
    • 2 x 3.5 litre potted sedum plants

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

SunDiascia 'Eternal Flames'

Twinspur

 Customer Rating
  • T&M exclusive
  • Brand new hardy diascia
This lovely South African plant produces slender spires, packed with pretty tubular blooms, over a remarkably long flowering period. Diascia 'Eternal Flames' will fill borders, beds and containers with vibrant shades of orange and pink from June to October. Although Twinspur is generally grown as an annual, it is actually perennial and hardy to -8C (18F), so it can be easily overwintered with some protection from winter weather. Height and spread: 30cm (12").
More info
    • 3 sundiascia Postiplug plants

    • Despatch: By end of March 2016
    •  
    • £7.99
    • 9 sundiascia Postiplug plants

    • Despatch: By end of March 2016
    •  
    • £11.99

Linaria purpurea 'Cannon J Went' (Large Plant)

Toadflax

Better known as Toadflax, this hardy perennial is a cottage garden favourite, constantly busy with butterflies. The upright flower spikes are packed with nectar rich blooms of the palest pink which continue from June right through to September. Linaria purpurea 'Cannon J Went' blends beautifully into herbaceous borders, but is equally at home in gravel gardens or wildlife areas. Toadflax is undemanding and easy to grow. The blooms also make delightful cut flowers for summer bouquets. Height: 90cm (36"). Spread: 30cm (12"). More info
    • 1 x 1 litre potted linaria plant

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

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

Nepeta nervosa 'Pink Candy' (Large Plant)

Catmint

This compact variety of Catmint makes a pretty feature for the front of borders, cut flower gardens and wildlife areas. Upright spikes of lavender-pink flowers appear from June to September above a mound of grey-green foliage. Like all Catmints, Nepeta nervosa 'Pink Candy' is a magnet for bees and the aromatic foliage drives cats to distraction! With its neat, bushy habit, this cultivar can easily be grown in patio containers, needing little attention throughout the season. Height: 60cm (24"). Spread: 30cm (12"). More info
    • 1 x 1 litre potted nepeta plant

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

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