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 234 products.
 

Foxglove 'Illumination Chelsea Gold'

Digitalis

To celebrate our Best New Plant success at the RHS show, we have named our new Foxglove 'Illumination' variety 'Chelsea Gold'. Just like its pink cousin, this spectacular foxglove is completely sterile, giving it an incredibly long flowering period as it won't set seed. Unlike most foxgloves which are generally biennial, this half-hardy semi-evergreen is a true perennial so you will be able to enjoy its flowers for years to come. The exotic looking blooms are densely packed on sturdy stems, with many side branches, making a striking addition to summer borders. Height: 90cm (36"). Spread: 45cm (18").

Useful links:

Read Michael Perry's blog: Futuristic Foxgloves

More info
    • 1 x 9cm potted plant

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 3 x 9cm potted plant

    • Despatch:
    • SAVE £9.99  
    • £29.97 £19.98
    • Out of stock

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 August 2014
    •  
    • £11.99
    • 10 Postiplug plants

    • Despatch: By end of August 2014
    •  
    • £16.99

Mazus reptans

  • 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 May 2014
    •  
    • £14.99
    • 10 jumbo plug plants

    • Despatch: By end of May 2014
    • SAVE £9.99  
    • £29.98 £19.99

Polyanthus eliator 'Crescendo® Mixed' F1 Hybrid

Primula, Oxlip

 Customer Rating
  • Best In Class for polyanthus click here for details
  • Polyanthus are a majestic spring container choice
  • RHS Award of Garden Merit

Give your garden a dose of springtime magic and banish the winter gloom. Polyanthus 'Crescendo®' paints a rainbow of colour with its large blooms in bright colours making bold splashes in pots, window boxes and borders.The flowers are long-lasting, fragrant and produced in abundance upon strong stems which are held above neat rosettes of foliage. With excellent winter hardiness and superior disease resistance, you can expect repeat performances year after year. By far the best bedding polyanthus available.

 

Culinary note: Primula 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 2014
    •  
    • £11.99
    • 72 plug plants

    • Despatch: By end of August 2014
    •  
    • £16.99

Pansy 'Green Goddess'

Viola x wittrockiana

No, your eyes are not deceiving you - this is a green pansy! When we first saw these pretty pansy flowers in such an unusual colour, we had to look twice too! Specially selected by our plant breeders, this unique summer-flowering pansy will look fabulous in beds, borders, patio containers and window boxes where it will flower from summer, right the way through until autumn. Working well with any colour, grow Pansy 'Green Goddess' alone or in mixed planting schemes for something a little bit different. Height: 20cm (8"). Spread: 23cm (9").


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

More info
    • 5 jumbo plug plants

    • Despatch:
    •  
    • £11.99
    • Out of stock
    • 10 jumbo plug plants

    • Despatch:
    • SAVE £8.99  
    • £23.98 £14.99
    • Out of stock

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 June 2014
    •  
    • £12.99
    • 10 jumbo plug plants

    • Despatch: By end of June 2014
    •  
    • £17.99

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 May 2014
    •  
    • £18.99

Foxglove 'Illumination Duo'

Digitalis

  • T&M's own breeding

Parentage from the little-known Isoplexis (Canary Island Foxglove) gives these exciting new Digitalis their fabulous tropical colouring. Being completely sterile Foxglove 'Illumination Duo' won't set seed, making them incredibly long flowering. Unlike most foxgloves which are generally biennial, these half-hardy semi-evergreen varieties are true perennials so you can enjoy them year after year. The exotic looking blooms are densely packed on sturdy stems, with many side branches, making a striking addition to summer borders. Height: 90cm (36"). Spread: 45cm (18").

  • Collection comprises:
  • Foxglove 'Illumination Pink' - Awarded 'Best New Plant' at the Chelsea Flower Show 2012.
  • Foxglove 'Illumination Chelsea Gold' - The latest addition to the 'Illumination' range, with exotic looking peachy-orange blooms.
More info
    • 2 x 9cm potted plants - 1 of each variety

    • Despatch:
    • SAVE £4.99  
    • £19.98 £14.99
    • Out of stock

Foxglove 'Illumination Pink'

Digitalis

 Customer Rating
  • Winner of Plant of the Year 2012 - RHS Chelsea Flower Show, Best new product at the Anglian Business Awards, Best new product at the Garden Retail awards
  • World Exclusive
  • T&M's own breeding

Thought to be an impossible hybridisation, this is the most spectacular foxglove you will have ever seen! Parentage from the little-known Isoplexis (Canary Island Foxglove) gives this exciting new Digitalis its fabulous tropical colouring. Being completely sterile Foxglove ‘Illumination’ won’t set seed, giving it an incredibly long flowering period. Unlike most foxgloves which are generally biennial, this half-hardy semi-evergreen is a true perennial so you will be able to enjoy its flowers for years to come. The exotic looking blooms are densely packed on sturdy stems, with many side branches, making a striking addition to summer borders. Height: 90cm (36"). Spread: 45cm (18").

Useful links:

'Impossible' Foxglove named Plant of the Year at RHS Chelsea Flower Show
Gardening news: Top 10 best-selling plants of 2012
Read Michael Perry's blog: Futuristic Foxgloves

More info
    • 1 x 9cm potted plant

    • Despatch: By end of May 2014
    •  
    • £9.99
    • 3 x 9cm potted plant

    • Despatch: By end of May 2014
    • SAVE £9.99  
    • £29.97 £19.98

Polyanthus 'Firecracker'

Primula

An eye-catching new Polyanthus bearing yellow blooms with a fiery orange-red edge. These long-lasting flowers are borne on strong, stout stems above rosettes of semi-evergreen foliage. Versatile and easy to grow, Polyanthus 'Firecracker' is perfect for edging borders and brightening up spring patio containers. Height and spread: 23cm (9").

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

More info
    • 12 plug plants

    • Despatch: By end of August 2014
    •  
    • £8.99
    • 24 plug plants

    • Despatch: By end of August 2014
    •  
    • £12.99

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 May 2014
    •  
    • £13.99
    • 10 jumbo plug plants

    • Despatch: By end of May 2014
    •  
    • £19.99
    • 20 jumbo plug plants

    • Despatch: By end of May 2014
    • SAVE £28.97  
    • £55.96 £26.99

Pansy 'Matrix™ Morpheus'

Viola x wittrockiana

This highly acclaimed pansy is one of the most popular in garden centres. The compact sturdy stems are well-branched and hold their vibrant flower heads high, whatever the weather brings to ensure your garden is filled with colour. Easy to grow, Pansy 'Matrix™ Morpheus' is perfect for all your containers and bedding displays. Height and spread: 23cm (9").


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 2014
    • + FREE £5 voucher  
    • £10.99
    • 72 plug plants

    • Despatch: By end of August 2014
    • + FREE £5 voucher  
    • £15.99