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 14 products.
 

Golden Lysimachia

Lysimachia punctata, Dotted Loosestrife

  • A towering, elegant plant for the border
Bring some sunshine to your borders with this resilient cottage-garden favourite. Neat clumps of tall, elegant stems with striking yellow flowers are borne from mid-summer through until early autumn. Golden Lysimachia is great for difficult clay soils and shadier parts of the garden, thriving in damp borders, bog gardens or at the margins of a pond. Grow dotted loosestrife in woodland gardens or informal areas for a burst of late summer colour! Height: 90cm (35"). Spread: 60cm (24").
More info
    • 5 Postiplug plants

    • Despatch: By end of May 2014
    •  
    • £9.99
    • 10 Postiplug plants

    • Despatch: By end of May 2014
    • SAVE £4.99  
    • £19.98 £14.99

Heuchera 'Tapestry' Mixture

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 July 2014
    • + FREE £5 voucher  
    • £16.99
    • 6 Postiplugs

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

Gaura lindheimeri 'Sparkle White'

  • New in 2014
This stunning hardy perennial makes a fabulous border plant! Its graceful, slender stems are topped with a flurry of dazzling white, starry blooms that still look fresh and airy at the end of summer. This bushy, clump forming variety has a neat, compact habit that makes it perfect for the front of sunny borders or edging paths as a mini hedge. Once established, Gaura lindheimeri 'Sparkle White' even copes well during periods of drought. Height and spread: 45cm (18").
More info
    • 24 plug plants

    • Despatch: By end of May 2014
    •  
    • £11.99
    • 48 plug plants

    • Despatch: By end of May 2014
    • Double up 24 to 48 for £5 extra  
    • £23.98 £16.99

Heucherella 'Trailing Collection'

  • New in 2014
  • New hanging basket plant!

A cross between Heuchera and Tiarella, these trailing hardy perennials look fabulous billowing out of hanging baskets, window boxes and patio containers, where the broad-lobed, evergreen leaves provide all-year-round interest! Grow them alone for a fountain of foliage, or in mixed baskets to add texture and contrast. Vigorous and easy to grow, Heucherella 'Trailing Collection' also makes a fantastic groundcover plant for sun or part shade. Height: 25cm (10"). Spread: 60cm (24").


  • Collection comprises:
  • Heucherella 'Crimson Cascade' – Wonderful green to copper-red foliage with contrasting dark veins.
  • Heucherella 'Yellowstone Falls' – Striking lime green leaves with crimson markings.
  • Heucherella 'Redstone Falls' – Vibrant green and ruby red leaves creating a mixture of autumnal colours which change with the seasons.
More info
    • 3 jumbo plug plants

    • Despatch: By end of May 2014
    •  
    • £14.99
    • 6 jumbo plug plants

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

Verbena bonariensis 'Lollipop'

Glandularia, Verbena patagonica

  • New in 2014
  • Unique mini Verbena for your patio
Like its parents, Verbena bonariensis 'Lollipop' boasts the same tight clusters of floating purple flowers, but has short, compact stems that reach only half the height. Well shaped, uniform plants with an open airy habit attract butterflies to their glowing blooms from June to September. This fabulous hardy dwarf verbena is perfectly proportioned for patio pots and the front of borders where it creates a wonderful delicate airy effect. Height and spread: 60cm (24").
More info
    • 3 jumbo plug plants

    • Despatch: By end of May 2014
    •  
    • £11.99
    • 6 jumbo plug plants

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

Cosmos atrosanguineus 'Chocamocha'

Chocolate Cosmos, Bidens atrosanguineus

  • New in 2014
A ‘must have’ plant for gardening chocoholics! You’ll be amazed by the luxurious, velvety blooms in rich cocoa shades that even smell of chocolate. Cosmos atrosanguineus 'Chocamocha' is particularly compact and much shorter than other cultivars, so the red-brown stems won’t require staking. Chocolate Plants make as fabulous container plant and associate beautifully with fiery shades in hot coloured perennial borders. Although often grown as an annual, this lovely Cosmos can easily be over-wintered as a perennial when grown in containers and kept in frost free conditions. Height and spread: 30cm (12").
More info
    • 3 jumbo plug plants

    • Despatch: By end of May 2014
    •  
    • £12.99
    • 6 jumbo plug plants

    • Despatch: By end of May 2014
    • SAVE £7.99  
    • £25.98 £17.99

Lamium 'Mega Purple'

Dead-nettle

 Customer Rating
  • New in 2014
The glistening silvery foliage of Lamium ‘Mega Purple’ contrasts beautifully its mauve, open mouthed blooms. This resilient Dead Nettle loves a shady spot, where it will quickly form a carpet of shimmering leaves. Flowering throughout the summer, its nectar rich blooms are a magnet for pollinating insects making it ideal for wildlife gardens, cottage garden borders and woodland areas. This easy to grow hardy perennial is practically indestructible – the perfect choice for ‘no-fuss’ ground cover. Height: 30cm (12"). Spread: 45cm (18").
More info
    • 3 Postiplug plants

    • Despatch: By end of May 2014
    •  
    • £9.99
    • 6 Postiplug plants

    • Despatch: By end of May 2014
    • SAVE £4.99  
    • £19.98 £14.99

Heuchera villosa 'Palace Purple'

Coral Flower, Coral Bells

 Customer Rating
Neat mounds of distinctive purple foliage make Heuchera 'Palace Purple' a particularly popular Coral Flower. The glossy, semi-evergreen leaves of this striking hardy perennial provide year round colour, forming drifts of ground cover and adding a bright splash to winter containers. The delicate summer sprays of pale pink flowers make dainty cut flowers and attract bees to their nectar rich blooms. Height and spread: 60cm (24”).
More info
    • 12 plug plants

    • Despatch:
    •  
    • £8.99
    • Out of stock

Comfrey 'Bocking 14'

Symphytum x uplandicum 'Bocking 14', Russian Comfrey

Grow your own soil conditioner! Comfrey 'Bocking 14' contains high levels of basic NPK nutrients and because it is a sterile hybrid, it won't self seed all over your garden.


The nutrient rich foliage of comfrey can be used as a compost activator, mulch, or soaked in barrels of water for 3 to 5 weeks to make a useful liquid feed for tomatoes and beans. Scatter the wilted leaves throughout potato trenches just before planting, to fertilise the crop and improve their flavour! Once established, this quick growing plant can be cut 3 or 4 times throughout the growing season, for a constant supply of nutrient rich, organic, comfrey fertiliser. Height: 100cm (40”). Spread: 75cm (30”).


Useful links:

How to grow herbs

More info
    • 5 root cuttings

    • Despatch: By end of May 2014
    •  
    • £9.99

Verbena bonariensis

Glandularia, Verbena patagonica

Tightly clustered florets form glowing lavender flower heads that float atop stiffly upright, branching stems. The long lasting blooms of Verbena bonariensis attract clouds of bees and butterflies. This perennial verbena has enjoyed a resurgence in popularity in recent years, associating beautifully with grasses for a tranquil planting scheme, or adding a touch of architectural style to the back of herbaceous borders. This elegant perennial is at its most effective when planted in large swathes. Height: 200cm (79”). Spread: 45cm (18”).
More info
    • 12 plug plants

    • Despatch:
    •  
    • £7.99
    • Out of stock

Anemone 'Wild Swan'

Windflower

  • Award winning new anemone, a Chelsea champion
A truly beautiful perennial, and winner of the RHS Chelsea Flower Show 2011 Plant of the Year title. Trialled over a 10 year period, Anemone 'Wild Swan' is a cross between early and late flowering anemones and as such, the unique flowers bloom intermittently from April right through to the autumn. Each elegant white flower is backed with pretty blue streaks that look particularly eye catching when the flowers nod closed in the mornings and evenings. A superb perennial for borders and woodland gardens with a neat, compact habit. Height: 45cm (18”). Spread: 60cm (24”)
More info
    • 1 x 7cm potted plant

    • Despatch: By end of July 2014
    • SAVE £5.00  
    • £13.99 £8.99
    • 2 x 7cm potted plants

    • Despatch: By end of July 2014
    • SAVE £10.00  
    • £19.99 £9.99

Rudbeckia 'All Sorts Mixed'

Coneflower, Black-eyed Susan

 Customer Rating
  • Mail order exclusive
  • T&M's own breeding
All your favourite rudbeckias in one spectacular mix, including the bestselling Rudbeckia 'Cherry Brandy', as well as many other doubles, singles, quilled types and more. These robust coneflowers have outstanding garden performance, and the long-lasting blooms make excellent cut flowers. A lovely addition to beds, borders and large patio containers. Height: 60cm (24”). Spread: 40cm (16”).
More info
    • 36 plug plants

    • Despatch: By end of May 2014
    •  
    • £12.99
    • 72 plug plants

    • Despatch: By end of May 2014
    • Double up 36 to 72 for £5 extra  
    • £17.99