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.


For beautiful summer flowers browse our range of annual plants.



We have found 59 products.
 

Most Scented Bumper Pack

 Customer Rating

Treat yourself to this fantastic bumper pack of the most scented bedding and border plants, and save yourself £££s! These great value perennials will fill your garden with fragrance and colour in a fabulous springtime display. You'll receive 12 plug plants of each of the following varieties - that's 72 plug plants in total! Height and spread: Up to 30cm (12").

  • Most Scented Bumper Pack comprises 12 plug plants each of:
  • Primrose 'World's Most Scented Mix' - Let the sweet citrus scent and the fresh colour mix of these reliable perennials transport you into spring.
  • Viola 'Most Scented' Mix - This exclusive blend exudes a spring-like perfume even on the coolest of winter days.
  • Stocks 'Most Scented' Mix - Specially selected for their strong and spicy fragrance and fabulous colours!
  • Pansy 'Most Scented' Mix - Larger than violas, with a cheery bright colour mix that will continue well into late spring.
  • Polyanthus 'Most Scented' Mix - Plenty of scented flowers on short, stocky stems, above neat rosettes of lush foliage.
  • Wallflower 'Most Scented' Mix - Versatile and undemanding, this tough perennial can cope in even the poorest of soils.
More info
    • 72 plug plants - 12 of each variety

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

Wallflower 'Sugar Rush Mixed' (Garden Ready)

Erysimum, Cheiranthus

  • 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.

Winner in the 'Best New Bedding Plant' category at the Grower of the Year Awards 2013, this is one of the most exciting wallflowers to emerge in recent years. Dense, fragrant flower spikes in shades of cream, yellow, red and purple appear not only in the spring, but throughout the autumn too, blooming in just 6 weeks from an August planting! With a delightful sweet fragrance and compact, multi-branching habit, Wallflower 'Sugar Rush' is perfect for beds, borders, containers and window boxes, creating a mass of colour and scent when much of the garden is dormant. Versatile and undemanding, wallflowers are tough enough to cope in even the poorest soils. Height and spread: 30cm (12").

 

More info
    • 30 wallflower garden ready plants

    • Despatch: By end of August 2015
    • Buy 2 packs for just £25  
    • £17.99

Wallflower 'Sunset Orange'

Erysimum, Cheiranthus

  • New in 2015
We've hand-picked this special orange wallflower for its quick flowering to offer you fragrance and colour in autumn as well as spring. This tough performer establishes quickly after planting in autumn to offer a strong flush of fragrant flowers before winter. Wallflower 'Sunset Orange' loves the cooler weather, and is the perfect winter border filler As spring warms up the plants burst back into colour for a second show. Leave in place for a third hit of autumn flowers. Height and spread: 30cm (12").
More info
    • 36 wallflower plug plants

    • Despatch: By end of August 2015
    •  
    • £11.99
    • 72 wallflower plug plants

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

Pansy 'Waterfall Mix'

Viola x wittrockiana

  • New in 2015
Large, scented flowers on compact, trailing plants. This is our best hanging basket pansy yet! We challenged our breeding team to develop a pansy colour collection with a vigorous, cascading habit, offering large and showy, long-lasting flowers. Not only have they hit the spot with Pansy 'Waterfall Mixed', they have also packed an amazing soft sugary scent into this top-performing variety. This tough garden performer stands up to winter rain and bad weather, bursting into colour in February for over 3 months of colour and scent, just when we need it most! Height and spread: 30cm (12").
More info
    • 36 pansy plug plants

    • Despatch: By end of August 2015
    •  
    • £11.99
    • 72 pansy plug plants

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

Aquilegia 'Swan Mixed'

Columbine, Granny's Bonnet

A lovely mix of colourful columbines, producing an abundance of large flowers on upright, multi-branched stems. Aquilegia 'Swan Mixed' are longer flowering than many aquilegias, and left to naturalise, they will quickly fill your garden with drifts of spring colour. Perfect for cottage gardens, perennial borders and woodland gardens. Height: 30cm (12"). Spread: 25cm (10"). More info
    • 6 aquilegia plug plants

    • Despatch: By end of August 2015
    •  
    • £5.99

Geranium 'Rozanne'

Geranium 'Gerwat'

  • Winner of The RHS Chelsea Flower Show 'Plant of the Centenary'
  • Unique long-flowering period for a Hardy Geranium

A celebrated Cranesbill producing masses of saucer shaped, violet-blue blooms with dainty white centres. Being a sterile hybrid, Geranium 'Rozanne' flowers repeatedly throughout the summer and won’t self-seed like other Geraniums. This hardy perennial makes excellent ground cover through the front of informal borders or spilling from containers. As summer ends the loose mounds of foliage colour to reddish brown and fiery orange for an extended display into autumn. Height: 30cm (12"). Spread: 60cm (24").


Useful links:

Geranium 'Rozanne gets our vote for RHS 'Plant of the Centenary'

 

More info
    • 1 geranium jumbo plug plant

    • Despatch: By end of August 2015
    •  
    • £9.99
    • 3 geranium jumbo plug plants

    • Despatch: By end of August 2015
    •  
    • £24.99

Wallflower 'Sugar Rush'

Erysimum, Cheiranthus

 Customer Rating
  • 'Best New Bedding Plant' at the Grower of the Year Awards
  • Autumn and spring flowering
  • Super-vigorous
Winner in the 'Best New Bedding Plant' category at the Grower of the Year Awards 2013, this is one of the most exciting wallflowers to emerge in recent years. Dense, fragrant flower spikes in shades of cream, yellow, red and purple appear not only in the spring, but throughout the autumn too, blooming in just 6 weeks from an August planting! With a delightful sweet fragrance and compact, multi-branching habit, Wallflower 'Sugar Rush' is perfect for beds, borders, containers and window boxes, creating a mass of colour and scent when much of the garden is dormant. Versatile and undemanding, wallflowers are tough enough to cope in even the poorest soils. Height and spread: 30cm (12").
More info
    • 36 wallflower plug plants

    • Despatch: By end of September 2015
    •  
    • £11.99
    • 72 wallflower plug plants

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

Heteropappus meyendorfii

Blue Chrysanthemum

  • Hundreds of electric blue blooms
Like a little blue Chrysanthemum, this fabulous plant produces an abundance of blooms from late summer, and continues throughout autumn. Heteropappus meyendorfii is a colourful, late flowering half hardy perennial with a lovely spreading habit. This pretty little daisy is perfect for filling gaps in containers and late summer borders when other plants are beginning to fade. Height: 30cm (12"). Spread: 45cm (18").
More info
    • 5 heteropappus Postiplug plants

    • Despatch: By end of August 2015
    •  
    • £8.99
    • 10 heteropappus Postiplug plants

    • Despatch: By end of August 2015
    • SAVE £4.99  
    • £17.98 £12.99

Iris 'Edith Wolford'

  • New in 2015
This German-bred Bearded Iris has proven bullet proof in our UK growing trials, we can't sing its praises enough. Not only does it produce a unique harmonious combination of bicolour blue and yellow blooms, you'll enjoy up to nine buds per stem on this hardy perennial. And just when you think this stunning iris has done its thing for the season it will reward you with a second wave of blooms later in the summer. Stem numbers increase year on year as the plants fill out. Great for getting that cottage garden look in your borders. Height 75cm (30"). Spread 40cm (16").
More info
    • 3 bare root iris plants

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 6 bare root iris plants

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

Wallflower 'Citrona Mixed'

Erysimum, Cheiranthus

  • New in 2015
Searching for something different to grow with your spring bedding plants this winter? Look no further than Wallflower 'Citrona Mixed'. This unique Erysium requires no cold period to encourage blooming, so you'll get a flush of fragrant blooms this autumn and again in spring. The vibrant citrus shades of yellow and orange will brighten the gloomiest of cold days, offering a fragrance so sweet you'll wish you could bottle it! A strong branching habit leads to multiple upright flower stalks right through spring, adding contrast and interest to pansy, primrose and spring flowering bulbs schemes. Height and spread: 30cm (12").
More info
    • 24 wallflower plug plants

    • Despatch: By end of August 2015
    •  
    • £9.99
    • 48 wallflower plug plants

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

Veronica spicata 'Royal Candles' (Large Plant)

Speedwell

Veronica 'Royal Candles' produces an endless supply of upright flower spikes in a deep shade of indigo blue. With a spreading habit it will quickly form a dense mat of toothed, mid green foliage that makes superb groundcover. This low growing perennial makes a lovely feature at the front of a well drained border, where it will spill over to soften edges and add a splash of summer colour. Height and spread: 30cm (12"). More info
    • 1 x 1 litre potted veronica plant

    • Despatch: By end of August 2015
    •  
    • £7.99
    • 2 x 1 litre potted veronica plants

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

Pulmonaria 'Raspberry Splash' (Large Plant)

Lungwort

Lungwort is a low growing hardy perennial which has long been a favourite in cottage gardens. Pulmonaria 'Raspberry Splash' is a delightful variety with slender, silver spotted foliage. From March to May, clusters of raspberry pink blooms appear above the leaves, and slowly mature through purple to light mauve creating an intriguing tricolour effect. A superb choice for attracting pollinating insects to wildlife areas and creating spreading clumps of groundcover in the shade of trees and shrubs. Height: 30cm (12"). Spread: 45cm (18"). More info
    • 1 x 3 litre potted pulmonaria plant

    • Despatch: By end of August 2015
    •  
    • £11.99
    • 2 x 3 litre potted pulmonaria plants

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