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, perennials live for 2 or more years and flower every year. Biennial plants 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 18 products.
 

Perennial Collection A+B

 Customer Rating

Fill your beds and borders with this bargain collection of herbaceous perennials. Perennial plants bloom year after year, and many can also be cut and brought into the house for beautiful flower arrangements. Height: Up to 150cm (60"). Spread: 75cm (30").

  • Perennial Collection A + B comprises:
  • A. Coreopsis 'Presto' - Neat, compact plants bear golden-yellow, semi-double flowers all summer long.
  • B. Echinacea 'Magic Box' - A stunning mix of daisy flowers and spectacular garden performance.
  • C. Scabiosa 'Blue Jeans' - Blue pincushion flowers attract bees and butterflies throughout summer.
  • D. Foxglove 'Dalmatian Peach' - Peachy trumpet flowers crowd sturdy, upright stems.
  • E. Poppy 'Pizzicato' Mixed - A neat semi dwarfing variety, producing up to 20 large flowers per plant.
  • F. Silene 'Jack Flash' - Scarlet blooms carried on elegant, slender stems over a long period.
  • G. Aquilegia 'Swan' Mixed - Long flowering, large blooms on upright, multi-branched stems.
  • H. Lavender 'Munstead' - A neat, compact variety of fragrant English lavender.
  • I. Heuchera 'Palace Purple' - Glossy, semi-evergreen purple leaves provide year round colour.
  • J. Delphinium 'Pacific Giants' - Excellent adding structure and presence to the back of borders.
  • K. Gaillardia 'Arizona' - A spectacular dwarf Blanket Flower with a long-flowering period.
  • L. Carnation 'Ever-blooming Mixed' (Hardy) - Richly fragrant blooms that are ideal for cutting.
More info
    • 72 plugs - 6 of each variety

    • Despatch: By end of July 2013
    • SAVE £53.89  
    • £71.88 £17.99

Wallflower Collection

Erysimum, Cheiranthus

Evergreen erysimum hybrids with an alluring perfume. 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").

  • Collection comprises:
  • Wallflower ‘Plant World Lemon’
  • Wallflower ‘Sweet Sorbet’
  • Wallflower ‘Winter Joy’
  • Wallflower ‘Winter Sorbet’
More info
    • 12 jumbo plugs - 3 of each variety

    • Despatch: By end of June 2013
    •  
    • £41.97 £20.99
Wallflower 'Most Scented' Mix

Wallflower 'Most Scented' Mix

Erysimum, Cheiranthus

  Customer Rating
  • The most scented wallflower
Don't overlook wallflowers! This popular cottage garden favourite is currently enjoying a revival. Wallflower ‘Most Scented Mix’ is a wonderful blend of specially selected Erysimum, chosen for their fabulous fragrance. 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
    • 36 plugs

    • Despatch: By end of August 2013
    •  
    • £19.98 £13.99
    • 72 plugs

    • Despatch: By end of August 2013
    •  
    • £29.97 £17.99
Aubrieta Royal Mixed

Aubrieta 'Royal Mixed'

Aubretia
 Customer Rating
Awarded an RHS Award of Garden Merit, these tough little plants will thrive in the poorest of soils, forming dense mats of evergreen foliage. Aubretia ‘Royal Mixed’ produces masses of colourful flowers in spring that will brighten rockeries, spill from containers and creep through cracks in walls and paving. Height: 10cm (4”); spread 60cm (24”). More info
    • 36 plugs

    • Despatch: By end of August 2013
    •  
    • £12.99
    • 72 plugs

    • Despatch: By end of August 2013
    •  
    • £23.98 £16.99
Creeping Phlox Collection

Phlox Collection (Creeping)

Phlox subulata, Phlox douglasii, Moss Phlox
  • Fragrant ground cover
Delicate in appearance but tough in character, these spreading evergreen perennials soften the edges of paths and grow in dry rockeries or on sunny banks and slopes. Perfect for creating colourful, weed smothering, ground cover. Height: 15cm (6”). Spread: 50cm (20”).
  • Collection comprises:
  • Phlox subulata ‘Candy Stripes’
  • Phlox douglassi ‘Red Admiral’
  • Phlox subulata ‘Calvides White’
  • Phlox subulata ‘Scarlet Flame’
  • Phlox subulata ‘Emerald Cushion Blue’
 More info
    • 5 Postiplugs

    • Despatch: By end of July 2013
    •  
    • £9.99
    • 10 Postiplugs

    • Despatch: By end of July 2013
    • SAVE £4.99  
    • £19.98 £14.99
Perennial Collection A (Red Hot Poker, Lupin, Bergamot, Chrysanthemum maximum, Ozark Sundrops)

Perennial Collection A

Fill your beds and borders with this bargain collection of herbaceous perennials. Perennial plants bloom year after year, and many can also be cut and brought into the house for beautiful flower arrangements. Height: Up to 1m (39"). Spread: 45cm (18").

  • Perennial Collection A comprises:

  • A. Coreopsis 'Presto' - Neat, compact plants are smothered in golden-yellow, semi-double flowers all summer long.
  • B. Echinacea 'Magic Box' - Specially selected for its stunning mix of daisy flowers and spectacular performance in the garden.
  • C. Scabiosa 'Blue Jeans' - An abundance of blue pincushion scabious flowers will attract bees and butterflies throughout summer.
  • D. Foxglove 'Dalmatian Peach' - Exquisite peachy trumpets crowd the sturdy, upright stems.
  • E. Poppy 'Pizzicato' Mixed - A neat semi dwarfing variety, producing up to 20 large flowers per plant.
  • F. Silene 'Jack Flash' - Scarlet blooms are carried on elegant, slender stems over a long period.
 More info
    • 36 plugs - 6 of each variety

    • Despatch: By end of July 2013
    • SAVE £22.95  
    • £35.94 £12.99
Perennial Collection B (Tickseed, Oriental Poppy, Coral Flower, Coneflower)

Perennial Collection B

 Customer Rating

Fill your beds and borders with this bargain collection of herbaceous perennials. Perennial plants bloom year after year, and many can also be cut and brought into the house for beautiful flower arrangements. Height: Up to 150cm (60"). Spread: 75cm (30").

  • Perennial Collection B comprises:
  • A. Aquilegia 'Swan' Mixed - Long flowering, producing an abundance of large flowers on upright, multi-branched stems.
  • B. Lavender 'Munstead' - This neat, compact variety of English lavender bears masses of dark purple-blue flower spikes.
  • C. Heuchera 'Palace Purple' - Glossy, semi-evergreen purple leaves provide year round colour.
  • D. Delphinium 'Pacific Giants' - Excellent for cutting and adding structure and presence to the back of borders.
  • E. Gaillardia 'Arizona' - A spectacular dwarf Blanket Flower with a long-flowering period and superb garden performance.
  • F. Carnation 'Ever-blooming Mixed' (Hardy) - Richly fragrant blooms that are perfect for cutting for a vase indoors.

More info
    • 36 plugs - 6 of each variety

    • Despatch: By end of June 2013
    • SAVE £22.95  
    • £35.94 £12.99
Dianthus barbatus 'Indian Carpet' Mixed - Part of the Alan Titchmarsh Collection

Dianthus barbatus 'Indian Carpet' Mixed

Sweet William
Create a carpet of magical spring colour with this compact, dwarf variety that knits together nicely when planted en masse. Sweet William ‘Indian Carpet’ Mixed brings together a superb colour range of reds, whites and bicolour blooms, each with a distinctive spicy clove scent. Often grown as a biennial, this short lived perennial is ideal for borders, beds and containers. Height: 15cm (6"). Spread: 25cm (10").

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

 More info
    • 48 plugs

    • Despatch: By end of August 2013
    •  
    • £13.99
Coreopsis grandiflora 'Sunray'

Coreopsis grandiflora 'Presto'

Tickseed
 Customer Rating
Coreopsis ‘Presto’ is so long-flowering and colourful that you can mix it up with summer bedding annuals to achieve a truly amazing, long lasting display. Neat, compact plants are smothered in golden-yellow, semi-double flowers all summer long. This versatile tickseed plant will grow almost anywhere, even in dry soil! Height and spread: 45cm (18”). More info
    • 12 plugs

    • Despatch: By end of May 2013
    •  
    • £5.99
    • 36 plugs

    • Despatch: By end of May 2013
    • SAVE £6.00  
    • £9.99 £3.99
    • 72 plugs

    • Despatch: By end of May 2013
    • Double up 36 to 72 for £5 extra  
    • £19.98 £14.99
Salvia patens 'Cambridge Blue'

Salvia patens 'Cambridge Blue'

Gentian Sage
  • NEW in 2013
This popular and well-loved perennial bears stems of open-mouthed flowers in a pale shade of blue that is rarely seen in the plant world. The pretty blooms of Salvia patens ‘Cambridge Blue’ rise above clumps of slightly hairy, aromatic foliage. This RHS AGM variety makes a fabulous addition to cottage garden borders and containers, or incorporated into bedding schemes for an eye-catching summer display. Although perennial, this half hardy Salvia will appreciate some protection from winter weather. Height: 75cm (30"). Spread: 45cm (18"). More info
    • 24 plugs

    • Despatch: By end of May 2013
    •  
    • £9.99
    • 48 plugs

    • Despatch: By end of May 2013
    • Double up 24 to 48 for £5 extra  
    • £19.98 £14.99
Aquilegia 'Swan Mixed'

Aquilegia 'Swan Mixed'

Columbine, Granny's Bonnet

 A lovely mix of colourful columbines, producing an abundance of large flowers on upright, multi-branched stems. Aquilegia ‘Swan Mixed’ are longer flowering than many aquilegias, and left to naturalise, they will quickly fill your garden with drifts of spring colour. Perfect for cottage gardens, perennial borders and woodland gardens. Height: 30cm (12”). Spread: 25cm (10”). More info
    • 6 plugs

    • Despatch: By end of May 2013
    •  
    • £5.99
    • 12 plugs

    • Despatch: By end of May 2013
    •  
    • £7.99
Echinacea x hybrida 'Magic Box'

Echinacea x hybrida 'Magic Box'

Coneflower
  • WORLD EXCLUSIVE
  • T&M's own breeding
One of the best colour mixes of coneflower available, and straight from T&M's own breeding programme. Each Echinacea has been specially selected for its stunning form as well as its spectacular performance in the garden. The long lasting, daisy-like flowers of Echinacea ‘Magic Box’ give a splendid garden performance in summer borders and are great for cutting too. Height: 75cm (30"). Spread: 45cm (18"). More info
    • 6 plugs

    • Despatch: By end of June 2013
    •  
    • £5.99
    • 12 plugs

    • Despatch: By end of June 2013
    •  
    • £8.99
    • 24 plugs

    • Despatch: By end of June 2013
    •  
    • £9.99
    • 72 plugs

    • Despatch: By end of June 2013
    •  
    • £17.99