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.



We have found 444 products.
 

Iris 'Orange Harvest' (Re-Blooming)

Bearded Iris

Vibrant orange blooms with a delicate fragrance make Iris 'Orange Harvest' a worthy addition summer borders. With the first flowers appearing in late spring and continuing into summer, these really are outstanding hardy perennials. These majestic bearded iris flowers also make impressive cut flowers for a vase indoors. Height: 90cm (36”). Spread: 40cm (16”). More info
    • 1 rhizome

    • Despatch: By end of January 2016
    •  
    • £8.99

Penstemon 'Blackberry'

Satin, bell-shaped flowers in a rich shade of purple smother the upright stems of this hardy perennial. From June onwards, the long-lasting flowers are produced above glossy, semi-evergreen foliage and continue their display well into autumn, long after most other summer perennials have faded. Penstemon 'Blackberry' 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 Postiplug plants

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

Arum Lily 'Spectrum Mixed'

Zantedeschia, Calla Lily

Bring some glamour and elegance into your garden with this beautiful collection of half-hardy Calla Lilies! The brightly coloured spathes are set against a backdrop of sumptuous, silver-spotted, heart shaped leaves. These exotic looking Arum Lillies are ideal for long lasting cut flower arrangements. Over-winter the rhizhomes in a warm, dry place and you can enjoy them year after year. Bulb size 12/14. Height: 60cm (24"). Spread: 20cm (8"). More info
    • 5 rhizomes

    • Despatch: By end of April 2015
    •  
    • £12.99
    • 10 rhizomes

    • Despatch: By end of April 2015
    • Save £8.99  
    • £25.98 £16.99

Morning Glory 'Fragrant Sky'

Ipomoea lindheimeri

 Customer Rating
A hardy perennial morning glory with a sweet fragrance too! Scrambling Ipomoea lindheimeri looks just like its annual cousins but you can look forward to it returning year after year. Morning Glory 'Fragrant Sky' produces beautiful lavender blue trumpet blooms against a backdrop of attractive lobed foliage that makes a lovely informal display. Perfect for growing over obelisks, adding height and structure to cottage garden borders. Height: 90cm (35"). Spread: 30cm (12").
More info
    • 1 x 10cm potted plant

    • Despatch: By end of May 2015
    •  
    • £11.99
    • 2 x 10cm potted plants

    • Despatch: By end of May 2015
    •  
    • £15.99

Geranium 'Jackpot White' F1 Hybrid

Zonal Geranium, Zonal Pelargonium

  • New in 2015
  • Stunning blooms will last all summer
These weather tolerant, F1 hybrid pelargoniums have more than enough vigour to ensure a spectacular, free flowering display throughout summer. Geranium 'Jackpot White' produce masses of colourful single blooms on neat compact plants. Perfect for filling beds, borders and patio containers. Height: 40cm (16"). Spread: 35cm (14").
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 36 plug plants

    • Despatch: By end of April 2015
    •  
    • £8.99

Most Scented Duo

Enjoy the beautiful scent of these popular pansies and polyanthus. In this collection you will receive 12 plug plants of Polyanthus 'Most Scented' Mix and 24 plug plants of Pansy 'Most Scented Mix'.

Pansy 'Most Scented Mix' This exclusive mix exudes a spring-like perfume even on the coolest of winter days. With a cheery bright colour mix, these pretty pansies bring a bright splash of colour that will continue well into late spring. Plant them in hanging baskets, window boxes and flower pouches™ and position them by a front door or kitchen window where you can really appreciate them. Height: 23cm (9”). Spread: 30cm (12”).
Polyanthus 'Most Scented Mix' - We've sniffed all the polyanthus we could find to be able to make up this exclusive mix for you! Each fresh colour has a lovely, strong fragrance, to bring you a true scent of spring. From late winter, these vigorous perennials produce plenty of flowers on short, stocky stems, above neat rosettes of lush foliage. Fill all your pots and borders with Polyanthus 'Most Scented Mix' for a riot of scent and colour even on the dreariest winter days! Height and spread: 25cm (10”).
More info
    • 36 plug plant mix

    • Despatch: By end of August 2015
    •  
    • £10.99

Dianthus barbatus 'Messenger'

Sweet William

A cottage garden favourite with the sweetest perfume! Clusters of flowers in shades of white, pink and mauve are produced in summer on stiff upright stems. The fragrant blooms of Sweet William 'Messenger' are particularly attractive to bees and make a superb cut flower for a vase indoors. Often grown as a biennial, this short lived perennial is ideal for cottage garden borders, beds and containers. Height: 60cm (24?). Spread: 30cm (12?).

 

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

More info
    • 36 plug plants

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 72 plug plants

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

Pansy 'Tasty Collection' F1 Hybrid

Viola x wittrockiana

  • 'Tasty Pansy' has a mild, sweet peppery taste

Like most Viola plants, the pretty flowers of Pansy ‘Tasty Collection’ are perfectly edible. These hardy summer pansies have been specially selected for their flavoursome blooms which have a mild, sweet and peppery taste. Perfect for delicious decorations for cakes and puddings, as well as salads and savoury tarts. Use them to dress up cheese plates or freeze them into ice cubes and add to your favourite drinks. Height and spread: 23cm (9").


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

More info
    • 24 plug plants

    • Despatch: By end of April 2015
    •  
    • £14.99
    • 48 plug plants

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

Fuchsia 'Bella Mariska'

  • New in 2015
  • T&M Exclusive

These new style fuchsias are real show-offs, designed for windowboxes, outdoor table tops and patio containers. Unlike traditional fuchsias, the blooms of the innovative 'Bella' range have outward and upward facing flowers, meaning no more hidden blooms - you can see their true beauty as they look up at you, all summer long!

More info
    • 5 Postiplug plants

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

Helianthemum 'Peachy Keen'

Rock Rose, Sun Rose

  • New in 2015
  • T&M Exclusive

These alpine species are particularly hardy, versatile and trouble-free and give glorious colour from spring to midsummer. They'll also reward you with a second flush of blooms in late summer! New peach bloomed variety 'Peachy Keen' has an overwhelming amount of petals, further boosting the effect in your garden! Evergreen/semi-evergreen.

More info
    • 5 jumbo plug plants

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

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

Penstemon 'Strawberries & Cream'

This popular hardy perennial deserves a prime spot in the garden. White trumpet shaped flowers with delicately speckled throats appear in summer above a flush of glossy, semi-evergreen foliage. The long-lasting blooms of Penstemon 'Strawberries and Cream' continue well into autumn, long after other plants have run out of steam. Undemanding and easy to grow, Penstemons tolerate almost any position in the garden, regardless of rain or drought, and even resist slug damage. What more could you ask of a plant? Height: 80cm (31"). Spread: 45cm (18").
More info
    • 3 Postiplug plants

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

Daylily 'Super Summer Mixed'

Hemerocallis

  • The spectacular Day Lily

The magnificent, showy trumpets of Daylily 'Super Summer Mixed' are carried on stiff stems above clumps of decorative, strappy foliage. The colourful lily-like blooms, each lasting only a day, are produced so freely that you will be able to spare a few stems for a short-lived arrangement of daylily flowers indoors. Daylilies are reliable hardy perennials, equally at home in cottage gardens or exotic borders where they are quick to establish and easy to maintain. Height and spread: 45cm (18").


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

More info
    • 3 bare root plants

    • Despatch: By end of April 2015
    •  
    • £11.99
    • 6 bare root plants

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