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 83 products.
 

Geranium 'Best Red' F1 Hybrid (Garden Ready)

Pelargonium, Zonal Geranium, Zonal Pelargonium

  • 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.

This exceptional variety, Geranium F1 'Best Red' outperformed all others in our trials. The uniform, well branched plants become smothered in large, shapely scarlet flowers that retain their form, without shattering as they fade. These vigorous pelargonium plants are guaranteed to create a top performance in beds, borders and containers. Height: 45cm (18"). Spread: 35cm (14").
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.

 

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

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

Gaillardia 'Snappy'

Blanket Flower

  • Finally, a gaillardia that lasts for years in the garden
Finally, a long-lasting gaillardia for years of pleasure in the garden. Blanket Flowers have a reputation for being unreliably perennial but new Gaillardia 'Snappy' makes that a thing of the past. We can now offer you unrivalled flower power alongside true perennial reliability for years of vibrant border and container colour. This world-class introduction offers non-stop flowering on sturdy, compact, upright plants from mid-summer through to late autumn. The red and yellow blooms also take on a purple sheen in the summer sunshine and will be much loved by bees, butterflies and other pollinators. Height and spread: 30cm (12").
More info
    • 5 gaillardia Postiplug plants

    • Despatch: By end of March 2016
    •  
    • £12.99
    • 10 gaillardia Postiplug plants

    • Despatch: By end of March 2016
    • SAVE £5.99  
    • £25.98 £19.99

Gaillardia 'Arizona Sun' (Garden Ready)

Blanket Flower

  • 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.

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").

 

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

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

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: By end of March 2016
    •  
    • £14.99
    • 2 x 9cm potted foxglove plants

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

Geranium 'Best Red' F1 Hybrid

Pelargonium, Zonal Geranium, Zonal Pelargonium

 Customer Rating

This exceptional variety, Geranium F1 'Best Red' outperformed all others in our trials. The uniform, well branched plants become smothered in large, shapely scarlet flowers that retain their form, without shattering as they fade. These vigorous pelargonium plants are guaranteed to create a top performance in beds, borders and containers. Height: 45cm (18"). Spread: 35cm (14").


Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 36 geranium plug plants

    • Despatch: By end of April 2016
    •  
    • £11.99
    • 72 geranium plug plants

    • Despatch: By end of April 2016
    • SAVE £5.99  
    • £23.98 £17.99

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 May 2016
    •  
    • £14.99

Dianthus 'Blackjack'

Carnation

New modern cut-flower quality carnation plants packing the heavenly scent of antique varieties! Modern breeding work has seen the unmistakable scent of carnations all but disappear in the search for longer, cut flower-quality stems. Fortunately Carnation 'Blackjack' bucks that trend. Not only does it offer a unique colour combination, the near black blooms also bring punchy clove-like fragrance to the garden. A perfect border carnation, it also performs well in containers. Originally planned for the commercial cut flower market, you won't be disappointed by the endless supply of fresh stems either! Keep the colour and scent in the garden or use Dianthus 'Blackjack' as your very own cut flower carnation. Height and spread: 50cm (20").


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

More info
    • 5 dianthus pencil plug plants

    • Despatch: By end of April 2016
    •  
    • £13.99
    • 10 dianthus pencil plug plants

    • Despatch: By end of April 2016
    • SAVE £7.99  
    • £27.98 £19.99

Geranium 'Octavia Hill'

Pelargonium, Zonal Geranium, Zonal Pelargonium

Enormous heads of scarlet blooms with exceptional weather resistance make these giant geraniums stand out from the rest! Raised from cuttings, Geranium 'Octavia Hill' has increased vigour and abundant flowers that persist throughout summer if deadheaded regularly. Fantastic for creating dramatic patio displays or filling gaps in borders. Height: 50cm (20"). Spread: 45cm (18").
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 5 geranium jumbo plug plants

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

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 April 2016
    •  
    • £14.99
    • 3 alstroemeria jumbo plug plants

    • Despatch: By end of April 2016
    • SAVE £4.99  
    • £29.98 £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").
More info
    • 24 gaillardia plug plants

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

    • Despatch: By end of April 2016
    • SAVE £7  
    • £25.98 £17.99

Geranium 'Black Rose'

Pelargonium, Rosebud Geranium

The full, rounded buds of Rosebud Geranium 'Black Rose' resemble dainty roses when they first break open, then cluster together to form a pretty posy. This vigorous, trailing variety has the exceptional garden performance of other ivy-leaf geraniums, but their unique flower form truly sets them apart. With regular deadheading, they will spill from windowboxes, containers, and hanging baskets, blooming profusely throughout the summer. Trails to: 45cm (18").
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 5 geranium jumbo plug plants

    • Despatch: By end of April 2016
    •  
    • £9.99
    • 10 geranium jumbo plug plants

    • Despatch: By end of April 2016
    • SAVE £2.99  
    • £19.98 £16.99

Geranium 'Red Sybil'

Pelargonium, Rosebud Geranium

The full, rounded buds of Rosebud Geranium 'Red Sybil' resemble dainty roses when they first break open, then cluster together to form a pretty posy. This vigorous, trailing variety has the exceptional garden performance of other ivy-leaf geraniums, but their unique flower form truly sets them apart. With regular deadheading, they will spill from windowboxes, containers, and hanging baskets, blooming profusely throughout the summer. Trails to: 45cm (18"). Geranium 'Red Sybil' is protected by Plant Breeder's Rights - propagation prohibited.
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 5 geranium jumbo plug plants

    • Despatch: By end of April 2016
    •  
    • £9.99
    • 10 geranium jumbo plug plants

    • Despatch: By end of April 2016
    • SAVE £2.99  
    • £19.98 £16.99