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 115 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 'Sunray' - Neat, compact plants bear golden-yellow, semi-double flowers all summer long.
  • B. Geum 'Blazing Sunset’ - Fully double, large scarlet blooms are borne over a long period in summer.
  • C. Scabiosa 'Blue Jeans' - Blue pincushion flowers attract bees and butterflies throughout summer
  • D. Echinacea 'Primadona' - Beautiful pink daisy flowers with petals that radiate outwards instead of downwards.
  • 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 for 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.

If you require a smaller perennial collection, have a look at Perennial Collection A and Perennial Collection B

. More info
    • 72 plug plants - 6 of each variety

    • Despatch: By end of August 2013
    • SAVE £52.89  
    • £71.88 £18.99
Golden Alexander (Lysimachia punctata)

Golden Lysimachia

Lysimachia punctata, Dotted Loosestrife
  • NEW in 2013
  • A towering, elegant plant for the border
Bring some sunshine to a damp, dark problem corner or an awkward spot under a tree with this resilient perennial. A new form of an old cottage garden favourite, the striking colour of the flowers contrasts beautifully with the golden-edged foliage. Enjoy a ‘Golden Alexander’ glow all summer long. More info
    • 5 Postiplug plants

    • Despatch: By end of September 2013
    •  
    • £9.99
    • 10 Postiplug plants

    • Despatch: By end of September 2013
    • SAVE £4.99  
    • £19.98 £14.99
Rose Lily Grass

Rose Lily Grass

Rhodohypoxis
  • NEW in 2013
  • Flowers in just 6 weeks from planting
Quick and easy to grow, these new lily grass plug plants will certainly appeal to the impatient gardener! In just 6 weeks after planting, your plants will explode into colour and flower. Plants tend to flower prolifically as each plug contains more than 1 bulblet, therefore giving plants extra ‘flower power’. Lily grass is a littleknown plant that’s really well worth a try; it’s maintenance-free, long-flowering and resistant to all pests and diseases! More info
    • 1 jumbo plug plant

    • Despatch: By end of September 2013
    •  
    • £10.99
    • 3 jumbo plug plants

    • Despatch: By end of September 2013
    • SAVE £16.98  
    • £32.97 £15.99
Geum Collection

Geum 'Cocktail Collection'

Avens
  • NEW in 2013

A truly magnificent collection of Geums in a mixture of cocktail colours which will bring warmth and excitement to your summer perennial borders. The pretty, bowl-shaped blooms are held high above the foliage on elegant, wiry stems, which are ideal for cutting for a vase indoors. Easy to grow, reliable and with a long flowering period, Geum 'Cocktail Collection' is an essential addition to your summer garden.


  • Collection comprises the following varieties:
  • Geum 'Alabama Summer' - Purple buds open to reveal golden, semi-double flowers with orange and red markings. Height: 45cm (18"). Spread: 40cm (16").
  • Geum 'Totally Tangerine' - Gorgeous pale orange blooms on thin, wiry stems. Height: 60cm (24"). Spread: 50cm (20").
  • Geum 'Mai Tai' - A compact Geum with beautiful, ruffled apricot-orange blooms emerging from contrasting burgundy buds. Height: 45cm (18"). Spread: 40cm (16").
  • Geum 'Tequila Sunrise' - A sunny new Geum with semi-double, yellow flowers; each petal blushed rose at the tips. Height: 45cm (18"). Spread: 40cm (16").
 More info
    • 4 jumbo plug plants - 1 of each variety

    • Despatch: By end of September 2013
    • SAVE £24.97  
    • £39.96 £14.99
    • 8 jumbo plug plants - 2 of each variety

    • Despatch: By end of September 2013
    • SAVE £59.93  
    • £79.92 £19.99
Iris 'Re-Blooming Collection'

Iris 'Re-Blooming Collection'

Bearded Iris

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 1 rhizome each of:
  • 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 rhizomes (1 of each variety)

    • Despatch: By end of November 2013
    • SAVE £28.96  
    • £44.95 £15.99
    • 10 rhizomes (1 of each variety)

    • Despatch: By end of September 2013
    • SAVE £69.91  
    • £89.90 £19.99
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 Postiplug plants

    • Despatch: By end of July 2013
    •  
    • £9.99
    • 10 Postiplug plants

    • Despatch: By end of July 2013
    • SAVE £4.99  
    • £19.98 £14.99

Mazus reptans

  • New in 2012
  • Try a new ground cover idea
This low growing, matt-forming perennial is perfect for filling gaps between stepping stones or at the front of sheltered borders and rockeries. The spreading foliage of Mazus reptans forms a dense carpet that is covered in pretty lilac-blue flowers with a yellow-spotted lower lip. This hardy, ground cover alpine has a long flowering period from late spring to July. Height: 5cm (2"). Spread: 30cm (12"). More info
    • 5 jumbo plug plants

    • Despatch: By end of September 2013
    •  
    • £14.99
    • 10 jumbo plug plants

    • Despatch: By end of September 2013
    • SAVE £9.99  
    • £29.98 £19.99
Osteospermum Collection (Hardy)

Osteospermum Collection (Hardy)

African Daisy, Cape Daisy
 Customer Rating

Versatile and resilient, hardy Osteospermums will thrive in hot, dry, neglected conditions, yet remain some of longest-flowering plants in the garden! Expect vibrant summer colour and weed suppressing ground cover from these easy to grow, sun loving Cape Daisies. Height: 15cm (6"). Spread: 90cm (36").

  • Collection comprises:
  • Osteospermum ‘Snow Pixie’ - A perfect contrast to its purple-pink coloured cousins, sporting clean, white petals with a golden yellow eye.
  • Osteospermum ‘Tresco Purple’ - Bold pink daisy flowers open every morning to greet the sun.
  • Osteospermum jucundum var. compactum - Irrepressibly cheerful, bright pink daisy flowers smother carpets of low growing foliage.
 More info
    • 9 jumbo plug plants - 3 of each variety

    • Despatch: By end of September 2013
    • SAVE £16.98  
    • £35.97 £18.99

Chrysanthemum 'Poppins' - Part of the Alan Titchmarsh Collection

 
  • Mail Order Exclusive
  • 100's of flowers per plant
Small, but bursting with blooms and each colour is ‘programmed’ to flower at the same time, so there’ll be no gaps in your displays. People often miss out on the opportunity for window box colour and ‘Poppins’ is ideal for this purpose. Height: 25cm (10"). Spread: 30cm (12").


Alan Titchmarsh

Alan Titchmarsh says...

"This new entrant into the late season arena may take you by surprise because, chrysanthemums are following in dahlias’ footsteps, back into fashion."

Companion planting: Try growing Chrysanthemums with chives, whose aromatic leaves will deter aphids.


Useful links:

Companion Planting 

 More info
    • 5 jumbo plug plants

    • Despatch: By end of June 2013
    •  
    • £9.99
    • 10 jumbo plug plants

    • Despatch: By end of June 2013
    • SAVE £4.99  
    • £19.98 £14.99
Delosperma Hardy Mixed

Delosperma 'Hardy Mixed'

Hardy Ice Plant
 Customer Rating
  • Vigorous ground cover, even in the driest of soils

Unique, versatile and vibrant! The fleshy, drought tolerant creeping stems of these hardy Ice Plants make ideal ground cover on sunny banks and poor stony soils. The showy daisy-like flowers of Delosperma ‘Hardy Mixed’ create a carpet of intense colour, in exclusive new shades that will stop you in your tracks. Fantastic for those hot, dry problem areas where many other plants would fail to establish. Height: 10cm (4"). Spread: 60cm (24").

 More info
    • 5 jumbo plug plants

    • Despatch: By end of August 2013
    •  
    • £13.99
    • 10 jumbo plug plants

    • Despatch: By end of August 2013
    •  
    • £19.99
    • 20 jumbo plug plants

    • Despatch: By end of September 2013
    • SAVE £28.97  
    • £55.96 £26.99
Aubrieta Royal Mixed

Aubrieta 'Royal Mixed'

Aubretia

  Customer Rating
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 plug plants

    • Despatch: By end of August 2013
    •  
    • £9.99
    • 72 plug plants

    • Despatch: By end of September 2013
    • SAVE £4.99  
    • £19.98 £14.99

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 plug plants - 3 of each variety

    • Despatch: By end of July 2013
    • SAVE £24.98  
    • £44.97 £19.99