Thompson & Morgan

Important delivery notice
The products on this site are only delivered to UK addresses. If you require delivery to another country please visit one of our other sites below.

Refine Results

Refine by..

Email Newsletter

Sign up to our newsletter

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.


For beautiful summer flowers browse our range of annual plants.



We have found 148 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 bare root geranium plant

    • Despatch: By end of November 2015
    •  
    • £12.99

Polyanthus eliator 'Crescendo® Mixed' F1 Hybrid

Primula, Oxlip

 Customer Rating
  • T&M Recommends
  • Polyanthus are a majestic spring container choice

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 polyanthus plug plants

    • Despatch: By end of September 2015
    •  
    • £7.99
    • 72 polyanthus plug plants

    • Despatch: By end of September 2015
    •  
    • £12.99

Primrose 'Palazzo Wine'

Primula

  • New in 2015
Treat yourself to some luxury at every day prices with our latest fancy primrose. We've selected Primrose 'Palazzo Wine' F1 for its sumptuous crested blooms and sheer flower power. The burgundy ruffled blooms are complimented by an elegant silver-laced edging and are produced in profusion, creating what we are calling a one plant posie. These hardy vigorous plants make perfect colourful border fillers, adding real impact to spring displays, but this hardy Primrose comes into its own in patio containers, where you can really appreciate the opulent blooms from February right through to May. Why not set a single plant in a small pot for occasional use as a table centre piece? Height: 25cm (10"). Spread: 20cm (8").
More info
    • 3 primula jumbo plug plants

    • Despatch: By end of September 2015
    •  
    • £8.99
    • 6 primula jumbo plug plants

    • Despatch: By end of September 2015
    •  
    • £12.99

Astilbe x arendsii 'Look at Me'

False Goatsbeard

  • New in 2015
Turn any dark, damp corner of the garden into a focal point with this stunning Astilbe. The bubble-gum pink flower plumes and vivid ruby-red stems of Astilbe 'Look At me' virtually shout for your attention. This easy-grow perennial will thrive in soil too wet for many garden plants, but you don't have to tuck it out of site. This star perennial is also a top performer in patio pots when kept shaded and well watered. Voted Best New Plant when launched to the industry at the 2013 European Plantarium trade fair - we now have stock to meet consumer demand for this sought after perennial plant. Height: 45cm (18"). Spread: 50cm (20").
More info
    • 3 bare root astilbe plants

    • Despatch: By end of November 2015
    •  
    • £8.99
    • 6 bare root astilbe plants

    • Despatch: By end of November 2015
    •  
    • £14.99

Meconopsis baileyi 'Hensol Violet'

Himalayan Blue Poppy, Tibetan Blue Poppy, Meconopsis betonicifolia

  • New in 2015
The 'must-have' Himalayan Blue Poppy' has a rival in this exquisite cultivated form. Bright violet-purple, almost shimmering flowers, with the merest hint of red, make a stunning addition planted in groups in shady borders and woodland areas. This 'collectors plant' still surprises countless poppy-lovers who have never seen this unusual perennial before. Meconopsis betonicifolia 'Hensol Violet' is so named for its origins from Hensol House, Scotland, where it was discovered by Lady Henderson. Height: 90cm (36"). Spread: 30cm (12").
More info
    • 1 x 9cm potted meconopsis plant

    • Despatch: By end of October 2015
    •  
    • £11.99
    • 2 x 9cm potted meconopsis plants

    • Despatch: By end of October 2015
    •  
    • £17.99

Primrose 'Autumn Colours Mixed' (Garden Ready)

Primula

  • The fast-track to a hassle-free garden - just plant, water and enjoy!
  • Quality plants delivered to your door, hardened off and ready to plant out
  • Fully-grown, super-robust, healthy plants
Our garden ready plants are selected for garden performance, straight from the nursery. We send them to you 'green' ahead of flowering (but please note some varieties may show a few blooms), which means plants will establish quickly and all their energy goes into producing better roots, so they produce more flowers throughout the season.

Winter primroses so quick to flower, you'll get a show this autumn! This quick flowering colour collection offers the longest flowering window we've ever seen among primroses. Confuse the seasons in your garden with vibrant colour from as early as September, right through to spring. Primrose 'Autumn Colours Mixed' are perfect for long lasting patio containers, hanging baskets and border edging. Height: 25cm (10"). Spread: 20cm (8").

 

More info
    • 30 primrose garden ready plants

    • Despatch:
    • Buy 2 packs for just £25  
    • £17.99
    • Out of stock

Foxglove 'Dalmatian Mixed'

Digitalis purpurea

Digitalis 'Dalmatian Mixed' looks magnificent in cottage gardens and woodland borders - but thanks to their uniform branching habit, these statuesque foxgloves make fabulous annual bedding too! These short lived perennials will happily seed about to create dramatic drifts and attract wildlife to their nectar rich flowers. Height: 50cm (20"). Spread: 40cm (16").

Useful links:

Gardening news: Move over marigolds... new bedding plants fly in the face of tradition

More info
    • 6 foxglove plug plants

    • Despatch: By end of September 2015
    •  
    • £5.99
    • 24 foxglove plug plants

    • Despatch:
    •  
    • £12.99
    • Out of stock

Primrose 'Alaska Improved Mixed'

Primula

  • Exclusive extra-hardy primrose mix
  • Up to 20 colours
  • Best In Class for widest primrose colour mix - click here for details
Plant a rainbow of primroses with up to 20 different colours. Primrose 'Alaska Improved Mixed' are super hardy, blooming from winter all the way through to late spring. Once established in beds, borders and containers, these easy to grow perennials will virtually look after themselves. Height and spread: 20cm (8").

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

More info
    • 36 primrose plug plants

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 72 primrose plug plants

    • Despatch: By end of September 2015
    •  
    • £14.99

Vinca 'Collection'

Periwinkle 'Collection'

Periwinkle is one of the toughest plants you’ll find, flowering relentlessly throughout the summer months in lovely shades of purple, pink and white. This vigorous low growing shrub thrives in virtually any garden position, from full sun to the darkest, shady corners. The clump forming stems provide evergreen dark green and variegated foliage that makes useful, weed suppressing ground cover. This colourful collection of Vinca major are perfect for filling those tricky areas of the garden where little else grows.
  • Collection comprises:
  • Vinca major ‘Variegata’ - Sky blue flowers set against variegated foliage. Height: 45cm (18"). Spread: 75cm (30").
  • Vinca minor ‘Atropurpurea’ - Deep plummy purple flowers. Height: 20cm (8") Spread: 50cm (19").
  • Vinca minor f. alba ‘Gertrude Jekyll’ - Profuse white flowers, carried on compact plants. Height: 20cm (8") Spread: 50cm (19").
More info
    • 6 vinca jumbo plug plants

    • Despatch: By end of September 2015
    • SAVE £2  
    • £11.99 £9.99
    • 12 vinca jumbo plug plants

    • Despatch: By end of September 2015
    • SAVE £2  
    • £19.99 £17.99

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 polyanthus plug plants

    • Despatch: By end of September 2015
    •  
    • £9.99 £7.99
    • 24 polyanthus plug plants

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

    • Despatch: By end of September 2015
    •  
    • £14.99

Trollius 'Dancing Flame'

Globeflower

  • New in 2015
Add some heat to your border this autumn with Trollius 'Dancing Flame'. This Globeflower has everything you'd want from a border perennial; contained vigour, long flowering habit, care-free attitude, and years of garden performance! The glorious orange blooms just keep on coming right though early summer for 8 weeks of vibrant colour. This hardy herbaceous perennial thrives in moist soils but will cope with drought conditions once established. Height: 60cm (24"). Spread: 50cm (20").
More info
    • 1 x 9cm potted trollius plant

    • Despatch: By end of August 2016
    •  
    • £11.99
    • 2 x 9cm potted trollius plants

    • Despatch: By end of August 2016
    •  
    • £17.99

Polyanthus 'Most Scented Mix'

Primula

  • The most scented polyanthus
We've sniffed all the polyanthus we could find to be able to make up this exclusive mix for you! Each fresh colour has a lovely, strong fragrance, to bring you a true scent of spring. From late winter, these vigorous perennials produce plenty of flowers on short, stocky stems, above neat rosettes of lush foliage. Fill all your pots and borders with Polyanthus 'Most Scented Mix' for a riot of scent and colour even on the dreariest winter days! Height and spread: 25cm (10")..

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

More info
    • 36 polyanthus plug plants

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 72 polyanthus plug plants

    • Despatch: By end of September 2015
    •  
    • £14.99