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 83 products.
 

Hellebore 'Washfield Doubles'

Helleborus x hybridus

 Customer Rating

Breathtaking, double-flowered hellebores from the 'Washfield' collection that are bred to perfection. Intriguing colours, patterns, flecks and ruffles are a sheer delight during the cold months of winter and early spring, while their leathery palmate foliage has an evergreen presence all year round. These delightful doubles come in a wide colour range including yellows, greens, blacks, reds, apricots and many other shades. Height and spread: 40cm (16"). Please note: Plants are selected at random from a wide colour range.

More info
    • 5 jumbo plug plants

    • Despatch: By end of November 2014
    •  
    • £13.99
    • 10 jumbo plug plants

    • Despatch: By end of November 2014
    •  
    • £18.99

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 November 2014
    •  
    • £19.99

Geranium maderense

Giant Herb Robert, Madeira Cranesbill

  • RHS Award of Garden Merit
  • The palm tree geranium
Geranium maderense is a magnificent tender perennial. The Madeira Cranesbill is the largest of the Geranium species, and certainly one of the most impressive, reaching a height of 1.5m (4',9"). Although perennial, it often acts as a biennial, producing pretty magenta pink blooms in its second year. But you won't mind the wait - it will give you time to appreciate the exotic-looking, dissected, evergreen foliage that radiates from a stout central trunk. This spectacular RHS AGM species will need some winter protection so it is best grown in the conservatory or a large patio container which can be moved to a frost free position in winter. Height: 150cm (59"). Spread: 100cm (39").
More info
    • 1 x 12cm potted plant

    • Despatch: By end of April 2015
    •  
    • £19.99
    • 2 x 12cm potted plants

    • Despatch: By end of April 2015
    •  
    • £29.99

Bellis perennis 'Pomponette'

Daisy

 Customer Rating
A refreshing change to pansies and primroses that will brighten up the garden in spring, just when it needs it most. This hardy perennial daisy bear tightly double, quilled blooms in pretty shades of pink and white. Bellis perennis 'Pomponette' is perfect for filling beds, edging borders, and adding a splash of colour to window boxes and patio containers. Height and spread: 20cm (8").

 

Culinary note: Bellis flowers are edible.

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

More info
    • 36 plug plants

    • Despatch: By end of August 2015
    •  
    • £10.99
    • 72 plug plants

    • Despatch: By end of August 2015
    • Double up from 36 to 72 for £5 extra  
    • £21.98 £15.99

Geranium 'Black Velvet Mix' F1

Pelargonium, Zonal Geranium, Zonal Pelargonium

 Customer Rating
  • Rarely available

Dark, enigmatic foliage makes a startling foil for the beguiling bright blooms of Geranium 'Black Velvet Mix' in four striking colours. The unique black leaves, produced on upright bushy plants, are edged with just a hint of green. This boldly coloured zonal geranium makes a striking addition to pots, beds and borders for long lasting summer colour. Height: 40cm (14”). Spread: 30cm (12”).


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
    • 24 plug plants

    • Despatch: By end of March 2015
    •  
    • £11.99
    • 48 plug plants

    • Despatch: By end of March 2015
    • Double up 24 to 48 for £5 extra  
    • £16.99

Geranium 'Best Red' F1 Hybrid

Pelargonium, Zonal Geranium, Zonal Pelargonium

 Customer Rating

This exceptional variety, Geranium F1 'Best Red' outperformed all others in our trials. The uniform, well branched plants become smothered in large, shapely scarlet flowers that retain their form, without shattering as they fade. These vigorous pelargonium plants are guaranteed to create a top performance in beds, borders and containers. Height: 45cm (18”). 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 March 2015
    •  
    • £13.99
    • 72 plug plants

    • Despatch: By end of March 2015
    • Double up 36 to 72 for £5 extra  
    • £18.99

Geranium 'T&M's Choice Mixed' F1 Hybrid

Pelargonium, Zonal Geranium, Zonal Pelargonium

 Customer Rating
  • New in 2014
  • Stunning blooms will last all summer
An improved mix of our best seller Geranium ‘Jackpot’! These weather tolerant, F1 hybrid pelargoniums have more than enough vigour to ensure a spectacular, free flowering display throughout summer. Geranium 'T&Ms Choice Mixed' 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
    • 6 plug plants

    • Despatch:
    •  
    • £5.99
    • Out of stock
    • 36 plug plants

    • Despatch: By end of March 2015
    •  
    • £13.99
    • 72 plug plants

    • Despatch: By end of March 2015
    •  
    • £18.99

Pansy 'Mystique Blue Halo'

Viola

  • New in 2014
This lovely variety sports extra-large, lavender blue flowers, each with a dazzling white ‘face’ and contrasting violet whiskers. This attractive little pansy is the perfect colour for creating a cool blue display that will keep blooming right through to late spring. Pansy 'Mystique Blue Halo' is easy to grow, making this the perfect choice for filling beds, borders, window boxes and patio containers with long lasting winter colour. Height: 15cm (6"). Spread: 23cm (9").
More info
    • 36 plug plants

    • Despatch: By end of August 2015
    •  
    • £12.99
    • 72 plug plants

    • Despatch: By end of August 2015
    • SAVE £8.99  
    • £25.98 £16.99

Heuchera 'Patchwork' Mix

Coral Flower, Coral Bells

 Customer Rating
  • Mail Order Exclusive
Sprays of delicate, tiny flowers float on wiry stems above neat mounds of vibrant foliage. Prized for their colourful leaves, these versatile semi-evergreen perennials make excellent drifts of ground cover, adding a distinctive splash of colour to the front of borders, or even brightening winter containers. Their airy blooms attract bees and are also useful as cut flowers. Height and spread: 40cm (16”).
More info
    • 3 Postiplugs

    • Despatch: By end of November 2014
    • + FREE £5 voucher  
    • £16.99
    • 6 Postiplugs

    • Despatch: By end of November 2014
    • + FREE £5 voucher  
    • £19.99

Hellebore Collection

Grow one of the UK's favourite winter-flowering plants; each flower bursting with glorious colour; easy to grow and fully hardy! This Hellebore Collection produces intriguing colours, patterns, flecks and ruffles which are a sheer delight during the cold months of winter and early spring. Their leathery palmate foliage has an evergreen presence all year round. Plants are vigorous, low-maintenance and long-lasting in sunny or difficult shady spots, representing excellent value for money. Height and spread: 45cm (18").


  • Collection comprises 5 plants each of:
  • Hellebore 'Hybridizers Singles' - Elegant, single-flowered Hellebores from our hand-pollinated breeding program, with a whole range of patterns and colours including whites, creams, pinks, greens, yellows, purples and black.
  • Hellebore 'Washfield Doubles' - Breathtaking, double-flowered Hellebores from the 'Washfield' collection that are bred to perfection. These delightful doubles come in a wide colour rangeincluding yellows, greens, blacks, reds, apricots and many other shades.

Plants are taken from selection, and we are unable to label colours upon despatch.

More info
    • 10 jumbo plug plants - 5 of each variety

    • Despatch: By end of November 2014
    •  
    • £18.99

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 March 2015
    •  
    • £10.99
    • 72 plug plants

    • Despatch: By end of March 2015
    • Double up from 36 to 72 for £5 extra  
    • £21.98 £15.99

Hellebore 'Hybridizers Singles'

  • Easy to grow, problem-free and will last for years
  • Fabulous early colour when the garden is dull and drab
  • Plants quickly establish and form clumps in any shady spot
Thompson & Morgan inherited the breeding successes of world renowned hellebore expert Elizabeth Strangman a few years ago. Since then, we've raised a superb range of Washfield hybrids, each with carefully perfected forms and colours. Now we're giving our customers the chance to get their hands on these elegant, single-flowered hellebores from our hand-pollinated breeding program. Helleborus 'Hybridizers Singles' are superb garden plants - and you might even get a surprise colour or two! Height and spread: 45cm (18").
More info
    • 5 jumbo plug plants

    • Despatch: By end of November 2014
    •  
    • £13.99
    • 10 jumbo plug plants

    • Despatch: By end of November 2014
    •  
    • £18.99