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 14 products.
 

Iris sibirica Collection

  • New in 2015

The breeding behind our unique iris collection brings more grace and beauty to this cottage garden favourite than ever before. Four exclusive varieties, all enhanced with crested double iris flowers for extra elegance and a frenzy of summer colour in your borders. Each flower has in excess of 20 petals, bringing a rose-like appearance to the luxuriant blooms. Iris sibirica Collection are tough performers, equally at home in moist, boggy soils and dry areas, and will enhance any garden border, especially mixed with other flower hardy perennials. Lush grass-like foliage makes for a good seasonal border filler. Height: 90cm (36"). Spread 35cm (14").


  • Collection comprises:
  • Iris 'Imperial Opal' - Translucent lavender-pink blooms with light edging and white throat.
  • Iris 'Pink Parfait' - Soft lavender-pink blooms with lighter edging. A yellow centre with white halo can be seen as flowers open fully.
  • Iris 'Concord Crush' - Rich violet-blue blooms with gold and white central blaze.
More info
    • 3 bare root iris plants - 1 of each variety

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

Iris 'Re-Blooming Collection'

Bearded Iris

 Customer Rating

A beautiful selection of hardy, drought tolerant bearded iris with exceptional disease and insect resistance. With the first flowers appearing in spring, and a second flush in autumn, these really are outstanding hardy perennials; perfect for summer borders. These majestic, tall bearded iris flowers have a delicate scent and make impressive cut flowers for a vase indoors. Height: 90cm (36"). Spread: 30cm (12").


  • Collection comprises:
  • Iris 'Orange Harvest' - Rust orange flowers.
  • Iris 'Victoria Falls' - Light blue iris flowers.
  • Iris 'Cantina' - Violet blooms.
  • Iris 'Buckwheat' - Golden yellow petals.
  • Iris 'Pass the Wine' - Wine red flowers.
More info
    • 5 Iris rhizomes - 1 of each variety

    • Despatch: By end of January 2016
    •  
    • £14.99
    • 10 Iris rhizomes - 2 of each variety

    • Despatch: By end of January 2016
    •  
    • £24.99

Iris 'Edith Wolford'

  • New in 2015
This German-bred Bearded Iris has proven bullet proof in our UK growing trials, we can't sing its praises enough. Not only does it produce a unique harmonious combination of bicolour blue and yellow blooms, you'll enjoy up to nine buds per stem on this hardy perennial. And just when you think this stunning iris has done its thing for the season it will reward you with a second wave of blooms later in the summer. Stem numbers increase year on year as the plants fill out. Great for getting that cottage garden look in your borders. Height 75cm (30"). Spread 40cm (16").
More info
    • 3 bare root iris plants

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 6 bare root iris plants

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

Iris 'Concord Crush'

Iris sibirica

  • New in 2015
Iris 'Concord Crush' sports heavily petalled, elegant violet-blue flowers with a deeply ruffled form. Iris sibirica are tough performers, equally at home in moist, boggy soils and dry areas, and will enhance any garden border, especially mixed with other flower hardy perennials. Lush grass-like foliage makes for a good seasonal border filler. Height: 90cm (36"). Spread 35cm (14").
More info
    • 1 bare root iris plant

    • Despatch: By end of November 2015
    •  
    • £6.99

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

Iris 'Victoria Falls' (Re-Blooming)

Bearded Iris

The soft blue blooms of Iris 'Victoria Falls' make a beautiful addition to 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 have a delicate scent and make impressive cut flowers for a vase indoors. Height: 90cm (36"). Spread: 40cm (16"). More info
    • 1 Iris rhizome

    • Despatch: By end of January 2016
    •  
    • £7.99

Iris 'Pass the Wine' (Re-Blooming)

Bearded Iris

Iris 'Pass the Wine' produces sumptuous burgundy blooms with a rich, velvety appearance. 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 Iris rhizome

    • Despatch: By end of January 2016
    •  
    • £7.99

Iris 'Pink Parfait'

Iris sibirica

  • New in 2015
Iris 'Pink Parfait' produces soft lavender-pink blooms with lighter edging. As the flowers open fully, a yellow centre with a white halo can be seen. Iris sibirica are tough performers, equally at home in moist, boggy soils and dry areas, and will enhance any garden border, especially mixed with other flower hardy perennials. Lush grass-like foliage makes for a good seasonal border filler. Height: 90cm (36"). Spread 35cm (14").
More info
    • 1 bare root iris plant

    • Despatch: By end of November 2015
    •  
    • £6.99

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 Iris rhizome

    • Despatch: By end of January 2016
    •  
    • £7.99

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 arum lily rhizomes

    • Despatch: By end of November 2015
    •  
    • £12.99
    • 10 arum lily rhizomes

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

Iris 'Imperial Opal'

Iris sibirica

  • New in 2015
Iris 'Imperial Opal' bears translucent lavender-pink blooms with light edging and an eye-catching white throat. Iris sibirica are tough performers, equally at home in moist, boggy soils and dry areas, and will enhance any garden border, especially mixed with other flower hardy perennials. Lush grass-like foliage makes for a good seasonal border filler. Height: 90cm (36"). Spread 35cm (14").
More info
    • 1 bare root iris plant

    • Despatch: By end of November 2015
    •  
    • £6.99

Iris 'Buckwheat' (Re-Blooming)

Bearded Iris

Elegant pale lemon blooms with deeper yellow falls and delicate brown veining make Iris 'Buckwheat' a lovely sight in 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 have a delicate scent and make impressive cut flowers for a vase indoors. Height: 90cm (36"). Spread: 40cm (16"). More info
    • 1 Iris rhizome

    • Despatch: By end of January 2016
    •  
    • £7.99