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 51 products.
 

Geranium himalayense 'Birch Double'

Geranium himalayense 'Plenum', Hardy Geranium, Cranesbill

Vigorous and versatile, this superb cranesbill tolerates almost any situation; even full shade. A mass of double purple-pink blooms stand above the delicately serrated foliage which turns to shades of burnt red and orange in autumn. Geranium himalayense 'Birch Double' will quickly blend with other herbaceous perennials to create colourful groundcover and looks equally attractive in herbaceous borders and shady woodland gardens. Height: 25cm (10”). Spread: 60cm (24”). More info
    • 1 bareroot plant

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

Primrose 'Planets Mixed'

Primula

  • New in 2014
  • Distinctive new colours
Be the first to grow these super special flowers! The contrasting inner ring has never been seen before in primroses and makes ‘Planets’ the perfect variety for lighting up your spring borders and pots. We’ve been begging our supplier to let us offer this extra special mixture and it’s certain to be a favourite with customers this year.
More info
    • 12 plug plants

    • Despatch: By end of August 2014
    •  
    • £7.99
    • 24 plug plants

    • Despatch: By end of August 2014
    • SAVE £4.99  
    • £15.98 £10.99
    • 48 plug plants

    • Despatch: By end of August 2014
    • SAVE £14.97  
    • £31.96 £16.99

Primrose 'Romance'

Primula

  • New in 2014
Each ruffled bloom of Primrose ‘Romance’ is individually patterned and marbled for a unique appearance. This flamboyant little primrose will brighten even the dullest winter day with their exuberant frills and colours. Grow them in beds, borders and containers or cheer up a springtime windowbox. Once established these easy to grow perennials will virtually look after themselves. Height and spread: 20cm (8").
More info
    • 24 plug plants

    • Despatch: By end of August 2014
    •  
    • £9.99
    • 48 plug plants

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

Primrose 'Belarina Doubles Collection'

Primula

  • New in 2014
Say ‘goodbye’ to the winter blues with these little beauties! Primrose ‘Belarina Doubles Collection’ will cheer up your garden from spring through to early summer with their vibrant colour, delicate fragrance and evergreen rosettes of foliage. With exceptional hardiness, down to -25C (13F), these incredible perennials will come back year after year, no matter how cold the winter is! Like miniature roses, these double-flowered primroses look fabulous wherever you plant them, in pots, containers, beds or baskets, in sun or semi shade - and unlike other primroses they won’t need dead-heading! In this collection you will receive the following varieties: 'Nectarine', 'Amethyst Ice' and 'Pink Ice' Height: 15cm (6"). Spread: 20cm (8").
More info
    • 3 jumbo plug plants

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

    • Despatch: By end of August 2014
    • SAVE £8.99  
    • £25.98 £16.99
    • 9 jumbo plug plants

    • Despatch: By end of August 2014
    • SAVE £18.98  
    • £38.97 £19.99

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 August 2014
    •  
    • £9.99
    • 10 Postiplug plants

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

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

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
    •  
    • £9.99
    • 72 plug plants

    • Despatch: By end of August 2014
    •  
    • £14.99

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 August 2014
    •  
    • £13.99
    • 10 jumbo plug plants

    • Despatch: By end of August 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 jumbo plug plant

    • Despatch: By end of August 2014
    •  
    • £9.99
    • 3 jumbo plug plants

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

Polyanthus 'Firecracker'

Primula

 Customer Rating
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
    •  
    • £9.99
    • 24 plug plants

    • Despatch: By end of August 2014
    •  
    • £13.99
    • 48 plug plants

    • Despatch: By end of September 2014
    • SAVE £20.97  
    • £39.96 £18.99

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 August 2014
    •  
    • £18.99