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, perennials live for 2 or more years and flower every year. Biennial plants 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 238 products.
 
Pansy 'Most Scented Mix'

Pansy 'Most Scented Mix'

Viola x wittrockiana
  • World Exclusive
  • The most scented pansy
Experience the unforgettable fragrance of Pansy ‘Most Scented Mix’. This exclusive mix exudes a spring-like perfume even on the coolest of winter days. With a cheery bright colour mix, these pretty pansies bring a bright splash of colour that will continue well into late spring. Plant them in hanging baskets, window boxes and flower pouches™ and position them by a front door or kitchen window where you can really appreciate them. Height: 23cm (9”). Spread: 30cm (12”).

 

Culinary note: Pansy flowers are edible.

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

 More info
    • 36 plugs

    • Despatch: By end of May 2013
    •  
    • £9.99
    • 72 plugs

    • Despatch: By end of May 2013
    • SAVE £4.99  
    • £19.98 £14.99
Geranium 'Maverick Red' F1 Hybrid

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”).

 More info
    • 36 plugs

    • Despatch: By end of March 2014
    •  
    • £12.99
    • 72 plugs

    • Despatch: By end of March 2014
    • Double up 36 to 72 for £5 extra  
    • £25.98 £17.99
Perennial Collection A (Red Hot Poker, Lupin, Bergamot, Chrysanthemum maximum, Ozark Sundrops)

Perennial Collection A

Fill your beds and borders with this bargain collection of herbaceous perennials. Perennial plants bloom year after year, and many can also be cut and brought into the house for beautiful flower arrangements. Height: Up to 1m (39"). Spread: 45cm (18").

  • Perennial Collection A comprises:

  • A. Coreopsis 'Presto' - Neat, compact plants are smothered in golden-yellow, semi-double flowers all summer long.
  • B. Geum 'Blazing Sunset' - Prolific, early flowering, fully double flowers.
  • C. Scabiosa 'Blue Jeans' - An abundance of blue pincushion scabious flowers will attract bees and butterflies throughout summer.
  • D. Echinacea 'Primadonna' - unique petals that radiate outwards instead of downwards..
  • E. Poppy 'Pizzicato' Mixed - A neat semi dwarfing variety, producing up to 20 large flowers per plant.
  • F. Silene 'Jack Flash' - Scarlet blooms are carried on elegant, slender stems over a long period.
 More info
    • 36 plugs - 6 of each variety

    • Despatch: By end of August 2013
    • SAVE £21.95  
    • £35.94 £13.99
Perennial Collection B (Tickseed, Oriental Poppy, Coral Flower, Coneflower)

Perennial Collection B

 Customer Rating

Fill your beds and borders with this bargain collection of herbaceous perennials. Perennial plants bloom year after year, and many can also be cut and brought into the house for beautiful flower arrangements. Height: Up to 150cm (60"). Spread: 75cm (30").

  • Perennial Collection B comprises:
  • A. Aquilegia 'Swan' Mixed - Long flowering, producing an abundance of large flowers on upright, multi-branched stems.
  • B. Lavender 'Munstead' - This neat, compact variety of English lavender bears masses of dark purple-blue flower spikes.
  • C. Heuchera 'Palace Purple' - Glossy, semi-evergreen purple leaves provide year round colour.
  • D. Delphinium 'Pacific Giants' - Excellent for cutting and adding structure and presence to the back of borders.
  • E. Gaillardia 'Arizona' - A spectacular dwarf Blanket Flower with a long-flowering period and superb garden performance.
  • F. Carnation 'Ever-blooming Mixed' (Hardy) - Richly fragrant blooms that are perfect for cutting for a vase indoors.

More info
    • 36 plugs - 6 of each variety

    • Despatch: By end of June 2013
    • SAVE £21.95  
    • £35.98 £13.99
Dianthus barbatus 'Indian Carpet' Mixed - Part of the Alan Titchmarsh Collection

Dianthus barbatus 'Indian Carpet' Mixed

Sweet William
Create a carpet of magical spring colour with this compact, dwarf variety that knits together nicely when planted en masse. Sweet William ‘Indian Carpet’ Mixed brings together a superb colour range of reds, whites and bicolour blooms, each with a distinctive spicy clove scent. Often grown as a biennial, this short lived perennial is ideal for borders, beds and containers. Height: 15cm (6"). Spread: 25cm (10").

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

 More info
    • 48 plugs

    • Despatch: By end of August 2013
    •  
    • £13.99
Viola 'Denim' - Part of the Alan Titchmarsh Collection

Viola 'Denim'

Pansy

 Fabulous flower power in deep velvety shades of inky-blue that add spring colour without being garish. This lovely variety has a pleasing uniform habit wherever you plant it - in beds, containers, baskets or windowboxes. With good tolerance to heat and cold, Viola ‘Denim’ makes a superb winter pansy for brightening those dark days from January, and well into spring. Height: 15cm (6"). Spread: 20cm (8").

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

 More info
    • 48 plugs

    • Despatch: By end of August 2013
    •  
    • £19.98 £13.99
Viola Avalanche Bronze Lavender - Basket Viola

Pansy 'Avalanche Bronze Lavender' (Trailing)

 Customer Rating

Alluring blooms resembling tiny faces! These free-flowering, compact plants are smothered in an avalanche of boldly coloured flowers with a delicate fragrance throughout spring. Viola ‘Avalanche Bronze Lavender’ is superb in baskets, containers, Flower Pouches® and window boxes. Height and spread: 23cm (9”).


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

 More info
    • 36 plugs

    • Despatch: By end of August 2013
    •  
    • £12.99
    • 72 plugs

    • Despatch: By end of August 2013
    •  
    • £16.99
Silene 'Starburst'

Silene 'Starburst'™

Silene laciniata, Catchfly, Campion
  • Double annual - comes back each year
Fiery, scarlet flowers with deeply cut, star shaped petals up to 2.5cm (1”) across are produced on slender stems. This easy to grow perennial makes a vibrant addition to borders from mid-summer onwards. Perfect for adding a bright splash of colour to exotic and hot planting schemes. Height: 60cm (24”). Spread: 30cm (12”). More info
    • 6 plugs

    • Despatch: By end of July 2013
    •  
    • £5.99
    • 12 plugs

    • Despatch: By end of July 2013
    •  
    • £8.99
    • 36 plugs

    • Despatch: By end of May 2013
    •  
    • £9.99
    • 72 plugs

    • Despatch: By end of June 2013
    • Double up 36 to 72 for £5 extra  
    • £19.98 £14.99
Tesco Clubcard - Trailing Geranium GeRainbow

Geranium 'GeRainbow'™

Pelargonium, Ivy-leaved Geranium, Ivy-leaved Pelargonium

  Customer Rating
  • Best in class for trailing geraniums

The ever popular 'Super Balcons', are now available with brighter colours, bigger flowers, and even more vigour, for superb cascades of colour! These trailing ivy-leaf geraniums look incredible spilling from window boxes and hanging baskets. Low maintenance and incredibly long flowering, Geranium 'GeRainbow'™ is set to become the no. 1 trailing pelargonium. Trails to: 90cm (36”). Spread: 45cm (18”).

 More info
    • 5 jumbo plugs

    • Despatch: By end of June 2013
    •  
    • £12.99
    • 10 jumbo plugs

    • Despatch: By end of June 2013
    • SAVE £8.99  
    • £25.98 £16.99
Giant Geranium Collection

Giant Geranium Collection

  • The biggest geraniums you'll ever find

Enormous heads of bloom with exceptional weather resistance make these giant geraniums stand out from the rest! Raised from cuttings, these plants have increased vigour and abundant flowers that persist throughout summer if deadheaded regularly. Fantastic for creating dramatic patio displays or filling gaps in borders. Height: 60cm (24”). Spread: 50cm (20”).

  • Collection comprises:
  • Geranium ‘Octavia Hill’ – Bold scarlet
  • Geranium ‘Salmon Princess’ -Delicate candy pink.
  • Geranium ‘Sassa’ – Dark pink.
  • Geranium ‘Flower Fairy Berry’ – Rich cerise pink.
  • Geranium ‘Peach Kiss’ – Light pink.
 More info
    • 5 jumbo plugs - 1 of each variety

    • Despatch: By end of June 2013
    •  
    • £12.99
    • 15 jumbo plugs - 3 of each variety

    • Despatch: By end of June 2013
    • SAVE 19.98  
    • £38.97 £18.99
    • 100 jumbo plugs - 20 of each variety

    • Despatch: By end of June 2013
    • SAVE £189.81  
    • £259.80 £69.99
Osteospermum Collection (Hardy)

Osteospermum Collection (Hardy)

African Daisy, Cape Daisy
 Customer Rating

Versatile and resilient, hardy Osteospermums will thrive in hot, dry, neglected conditions, yet remain some of longest-flowering plants in the garden! Expect vibrant summer colour and weed suppressing ground cover from these easy to grow, sun loving Cape Daisies. Height: 15cm (6"). Spread: 90cm (36").

  • Collection comprises:
  • Osteospermum ‘Snow Pixie’ - A perfect contrast to its purple-pink coloured cousins, sporting clean, white petals with a golden yellow eye.
  • Osteospermum ‘Tresco Purple’ - Bold pink daisy flowers open every morning to greet the sun.
  • Osteospermum jucundum var. compactum - Irrepressibly cheerful, bright pink daisy flowers smother carpets of low growing foliage.
 More info
    • 9 jumbo plugs - 3 of each variety

    • Despatch: By end of June 2013
    • SAVE £16.98  
    • £35.97 £18.99
Geranium 'Custard Cream'

Geranium 'Custard Cream'

Pelargonium, Zonal Geranium, Zonal Pelargonium
  • NEW in 2013
  • World Exclusive
  • The world's first true yellow geranium
For many years the elusive yellow geranium has been the holy grail of the plant world. There are plenty of dark cream varieties but few have captured that true yellow colour. Pelargonium enthusiasts will love Geranium ‘Custard Cream’ for its buttery yellow blooms and fabulous vigour. Created by the world's leading geranium breeder, this superb zonal pelargonium deserves a prominent place in your patio containers and borders this summer. Height: 30cm (12"). Spread: 25cm (10"). More info
    • 5 jumbo plugs

    • Despatch: By end of April 2014
    •  
    • £9.99
    • 10 jumbo plugs

    • Despatch: By end of April 2014
    • SAVE £2.99  
    • £19.98 £16.99