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.


For beautiful summer flowers browse our range of annual plants.



We have found 75 products.
 

Foxglove 'Illumination Ruby Slippers'

Digitalis x valinii

  • New colour break
  • Multi-flowering Foxgloves
  • Prennial habit

The Digitalis Illumination Series, from our very own breeding programme, has changed the world of Foxgloves; taking them from a wiry, brief-blooming biennial wildflower to a handsome, tidy yet shrubby perennial with true garden performance.

Following several outstanding colour developments, our breeding team has done it again with the creation of a brand new colour break. Digitalis 'Illumination Ruby Slippers' is the latest addition to our award winning series. This beautiful foxglove produces multiple spires of open-mouthed blooms on short stocky plants that are just as at home in a patio pot as a cottage garden border scheme. Being completely sterile, this stunning Foxglove won't set seed, making it incredibly long flowering. As the main flower spike fades, multiple sideshoots spring up to offer five months of vivid floral colour. Parentage from the little-known Isoplexis (Canary Island Foxglove) gives this exciting new Digitalis its fabulous colouring and perennial habit. Height: 90cm (36"). Spread: 45cm (18")

More info
    • 1 x 9cm potted foxglove plant

    • Despatch:
    •  
    • £14.99
    • Out of stock
    • 2 x 9cm potted foxglove plants

    • Despatch: By end of July 2016
    • SAVE *£9.99  
    • £29.98 £19.99

Rudbeckia hirta 'Cherry Brandy' (Garden Ready)

Coneflower, Black-eyed Susan

 Customer Rating
  • Best in class for rudbeckias
  • Cut flowers last 2 weeks
  • 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.

Thompson & Morgan's plant breeders are proud to present the first-ever red rudbeckia! These robust plants have outstanding garden performance, producing a mass of attractive, cherry-coloured blooms all summer long. Triumphing over heat and poor soils, these versatile coneflowers look stunning when planted beds, large patio containers, or as sweeping drifts in herbaceous borders. Height: 60cm (24"). Spread: 40cm (16").

 

Garden ready special offer
More info
    • 30 rudbeckia garden ready plants

    • Despatch: By end of July 2016
    •  
    • £14.99

Alstroemeria 'Rock 'n' Roll'

Peruvian Lily

  • Flowers until November
Ten years of breeding by Australia's leading specialists have produced this unusual new Alstromeria with amazing variegated foliage. This fantastic Peruvian Lily grows just as well in sun as in shade, with no burning of the creamy foliage. Alstroemeria 'Rock 'n' Roll' is super hardy, withstanding temperatures down to -10°C (14F). Perfect for borders and patios where it will flower continuously throughout summer, producing beautiful stems that are ideal for cutting. Height: 75cm (30"). Spread: 60cm (24").
More info
    • 1 alstroemeria jumbo plug plant

    • Despatch: By end of July 2016
    •  
    • £14.99
    • 3 alstroemeria jumbo plug plants

    • Despatch: By end of July 2016
    • SAVE *£19.98  
    • £44.97 £24.99

Gaillardia 'Arizona Sun'

Blanket Flower

A blaze of summertime colour that thrives, whatever the weather! The glorious daisy flowers of Gaillardia 'Arizona Sun' produce a constant display of large flower heads in fiery shades of orange, yellow and red. The cheery blooms persist well into autumn, and make spectacular cut flowers for an indoor display. This low maintenance, hardy perennial is trouble-free and even copes well on poor, dry soils. Perfect for containers or filling gaps at the front of sunny borders. Height: 30cm (12"). Spread: 45cm (18").

 

Buy this variety in a larger plant size
More info
    • 24 gaillardia plug plants

    • Despatch: By end of September 2016
    •  
    • £12.99
    • 48 gaillardia plug plants

    • Despatch: By end of September 2016
    • SAVE *£7.99  
    • £25.98 £17.99

Cosmos atrosanguineus 'Eclipse'

Bidens atrosanguinea, Chocolate Plant

We've topped our chocolate cosmos offering with the richest scent and colour. Cosmos 'Eclipse' surpasses all previous introductions with a scent that is utterly divine, emanating from deeply rich maroon flowers that are so dark and sensual they appear almost black – certainly the darkest cosmos you'll find on the market. Cosmos 'Eclipse' is the must-have garden plant for all chocaholics out there, the rich scent will fill the garden on a calm sunny day - you'll think someone has unwrapped your favourite chocolate bar! These sturdy cosmos plants add luxury and scent to summer containers and seasonal bedding displays. If you are looking to get 'beach fit' for you summer holiday this year, Cosmos 'Eclipse' might not be for you - you'll be heading for the snack cupboard every time you walk past your plants! Height: 45cm (18"). Spread 30cm (12"). More info
    • 4 cosmos Postiplug plants

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 8 cosmos Postiplug plants

    • Despatch:
    • SAVE *£1.99  
    • £19.98 £17.99
    • Out of stock

Geum 'Blazing Sunset'

Avens

 Customer Rating
Fully double, scarlet red Geum flowers rise above clumps of foliage on thin, wiry stems. Geum 'Blazing Sunset' adds a bright splash of colour to borders - the large flowers make a dazzling and unusual addition to cut flower arrangements too. These colourful hardy perennials are so easy to grow that we can't understand why they're not more commonly grown! Height and spread: 60cm (24").
More info
    • 6 geum plug plants

    • Despatch: By end of August 2016
    •  
    • £5.99

Helenium 'Moerheim Beauty' (Large Plant)

Helen's Flower, Sneezeweed

Don't get caught out with a colour-less, late summer garden - Helenium actually flower much later in the summer, so are excellent for extending the season of colour! Helenium 'Moerheim Beauty' is a choice variety, with copper-red flowers.

This hardy perennial is loved by bees and butterflies, and is the proud holder of an RHS Award of Garden Merit, so comes highly recommended as a reliable garden plant. Sneezeweed is tall, and is great for filling gaps in borders and adding height. It looks particularly good with grasses. Height: 90cm (36"). Spread: 60cm (24").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 3 litre potted helenium plant

    • Despatch: By end of July 2016
    •  
    • £14.99
    • 2 x 3 litre potted helenium plants

    • Despatch: By end of July 2016
    •  
    • £24.99

Red Hot Poker 'Fire Dance' (Large Plant)

Kniphofia, Torch Lily

The Red Hot Poker is instantly recognisable. This reliable perennial is an old favourite for mixed herbaceous borders. Kniphofia 'Fire Dance' is a particularly useful selection, as it's extremely cold hardy. The scarlet and yellow blooms rise above dense clumps of evergreen foliage in summer.Plants also prove remarkably rabbit proof and these robust plants are loved by bees and butterflies too. Height: 50cm (20") Spread: 60cm (24").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 1 litre potted red hot poker plant

    • Despatch:
    •  
    • £12.99
    • Out of stock
    • 2 x 1 litre potted red hot poker plants

    • Despatch:
    •  
    • £19.99
    • Out of stock

Salvia nemorosa 'Marcus' (Large Plant)

Salvia are effortless, hardy plants for mixed borders. Salvia nemorosa 'Marcus' is a particularly special selection, with deep indigo flower spikes above clumps of aromatic foliage, the blooms coming in such density that they create a solid block of colour.

Salvia plants are deer resistant, rabbit resistant, and will attract bees and butterflies to your garden. Salvia 'Marcus' is short, neat and will make a strong feature towards the front of cottage garden borders and wildlife gardens. Trimming the plants in midsummer will encourage even more flowers! Height: 45cm (18"). Spread: 45cm (18").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 1 litre potted salvia plant

    • Despatch: By end of July 2016
    •  
    • £12.99
    • 2 x 1 litre potted salvia plants

    • Despatch: By end of July 2016
    •  
    • £19.99

Penstemon 'Strawberries & Cream'

This popular hardy perennial deserves a prime spot in the garden. White trumpet shaped flowers with delicately speckled throats appear in summer above a flush of glossy, semi-evergreen foliage. The long-lasting blooms of Penstemon 'Strawberries and Cream' continue well into autumn, long after other plants have run out of steam. Undemanding and easy to grow, Penstemons tolerate almost any position in the garden, regardless of rain or drought, and even resist slug damage. What more could you ask of a plant? Height: 80cm (31"). Spread: 45cm (18").
More info
    • 3 penstemon jumbo plug plants

    • Despatch: By end of July 2016
    •  
    • £9.99

Alstroemeria 'Everest Pink Punch'

Peruvian Lily

  • T&M Exclusive

These show-stopping Peruvian Lilies produce cerise pink flowers on lofty stems. Alstroemeria 'Everest Pink Punch' is perfect for creating a strong splash of colour in borders, containers or a vase indoors. Support this hardy perennial with our handy climbing frame for the most impressive display. With so many long-stemmed blooms, you will never be short of cut flowers to add to magnificent bouquets. Height: 140cm (55"). Spread: 75cm (30").

More info
    • 3 alstroemeria jumbo plug plants

    • Despatch: By end of July 2016
    •  
    • £24.99

Dianthus barbatus 'Mixed' (Garden Ready)

Sweet William

  • 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.


Enjoy the sweet clove like fragrance of this cottage garden favourite with the minimum of effort. This traditional mix of Sweet Williams combines a fabulous range of pinks, reds and white including solid shades and bicolours for a real tapestry of colour. Dianthus barbartus 'Mixed' carries its large clusters of flowers upon short, compact plants that make superb bedding. Often grown as a biennial, this short lived perennial is ideal for beds and borders. Height: 15cm (6"). Spread: 25cm (10").


Culinary note: Use the clove like tasting petals for adding to cakes, either for flavour or decorating, suitable for soups, salads and sauces too. For more details about edible flowers click here.

 

Garden ready special offer
More info
    • 30 dianthus garden ready plants

    • Despatch: By end of September 2016
    •  
    • £14.99