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 8 products.
 

Pansy 'Green Goddess'

Viola x wittrockiana

No, your eyes are not deceiving you - this is a green pansy! When we first saw these pretty pansy flowers in such an unusual colour, we had to look twice too! Specially selected by our plant breeders, this unique summer-flowering pansy will look fabulous in beds, borders, patio containers and window boxes where it will flower from summer, right the way through until autumn. Working well with any colour, grow Pansy 'Green Goddess' alone or in mixed planting schemes for something a little bit different. Height: 20cm (8"). Spread: 23cm (9").


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

More info
    • 5 pansy jumbo plug plants

    • Despatch: By end of September 2015
    •  
    • £11.99
    • 10 pansy jumbo plug plants

    • Despatch: By end of September 2015
    • SAVE £8.99  
    • £23.98 £14.99

Gunnera manicata (Large Plant)

Chilean Rhubarb

Gunnera is the ‘big daddy' of the gardening world. The giant evergreen leaves can reach 1-2 metres across, and will add the wow factor to any garden, although isn't necessarily suitable for smaller gardens!

Also affectionately known as Giant Rhubarb, Gunnera is robust, spectacular and architectural. They make great specimen plants bog gardens and waterlogged spots, the reflection in water is especially beautiful. Gunnera manicata holds an RHS Award of Garden Merit too. Height: 2.5m (8') Spread: 4m (13').

More info
    • 1 x 1 litre potted gunnera plant

    • Despatch: By end of October 2015
    •  
    • £9.99
    • 2 x 1 litre potted gunnera plants

    • Despatch: By end of October 2015
    •  
    • £16.99

Euphorbia characias 'Black Pearl' (Large Plant)

Milkweed, Spurge

A unique plant which gives all year round interest! Euphorbia are fully hardy, and will tolerate dry, sunny borders and periods of drought. Plants are evergreen and architectural, and possibly offer the longest flowering period of any garden plant. The unique black and green flowers of Euphorbia characias 'Black Pearl' are full of sweet nectar, and open in spring, and stay in place until the first frosts. Euphorbia will thrive in dry gardens, Mediterranean-style plantings and large patio pots. Height and Spread: 60cm (24"). More info
    • 1 x 1 litre potted euphorbia plant

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

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

Euphorbia Duo

Euphorbia characias, Euphorbia x martinii, Milkweed, Spurge

These hardy perennials are well known for their drought tolerance once established, and make superb evergreen specimens for sunny borders. Our Euphorbia Duo combines two fabulous varieties, each with different variegated foliage that will bring year round colour to your garden.

  • Collection comprises:
  • Euphorbia x martinii 'Ascot Rainbow' - Blue-grey leaves edged with bright gold margins that take on an attractive rosy pink tinge during colder weather.
  • Euphorbia characias 'Glacier Blue' - Smokey blue-green foliage edged with contrasting cream margins makes a fabulous evergreen display.
More info
    • 4 euphorbia jumbo plug plants - 2 of each variety

    • Despatch:
    •  
    • £14.99
    • Out of stock

Euphorbia x martini 'Ascot Rainbow' (Large Plant)

Milkweed, Spurge

Evergreen blue-grey leaves edged with bright gold margins make a colourful display throughout the year. The vibrant foliage of Euphorbia x martinii 'Ascot Rainbow' takes on an attractive rosy pink tinge during colder weather and shows superb winter hardiness. In spring, this showy Spurge bears chartreuse green flowers towards the tip of each stem, each with a dark contrasting eye. This striking perennial makes a lovely addition to sunny borders, and once established, is particularly drought tolerant. Height and spread: 50cm (20"). More info
    • 1 x 2 litre potted euphorbia plant

    • Despatch: By end of August 2015
    •  
    • £13.99
    • 2 x 2 litre potted euphorbia plants

    • Despatch: By end of August 2015
    •  
    • £21.99

Hellebore 'Lime Bicolour' (Large Plant)

Helleborus

Eye-catching double blooms with pale lime petals and cerise picotee edges bring a splash of spring colour to dull winter borders. Hellebore ‘Lime Bicolour’ is the essential low maintenance plant for any difficult, shady border where they will form clumps of leathery evergreen foliage for a year round garden presence. These resilient hardy perennials are vigorous and long lived, lasting for 20 years or more. Height and spread: 45cm (18"). More info
    • 1 x 3 litre potted hellebore plant

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 2 x 3 litre potted hellebore plants

    • Despatch:
    •  
    • £14.99
    • Out of stock

Euphorbia x martinii 'Ascot Rainbow'

Milkweed, Spurge

Evergreen blue-grey leaves edged with bright gold margins make a colourful display throughout the year. The vibrant foliage of Euphorbia x martinii 'Ascot Rainbow' takes on an attractive rosy pink tinge during colder weather and shows superb winter hardiness. In spring, this showy Spurge bears chartreuse green flowers towards the tip of each stem, each with a dark contrasting eye. This striking perennial makes a lovely addition to sunny borders, and once established, is particularly drought tolerant. Height and spread: 50cm (20"). More info
    • 1 euphorbia jumbo plug plant

    • Despatch:
    •  
    • £7.99
    • Out of stock

Euphorbia amygdaloides 'Ruby Glow' (Large Plant)

Milkweed, Spurge

  • New in 2015

This handsome evergreen perennial produces vivid bright green flower bracts that seemingly glow above ruby-red foliage. As the foliage ages it becomes near black throughout the cold winter months before producing a new flush of vibrant red leaves in spring. Euphorbia amygdaloides 'Ruby Glow' has a neat compact habit producing rounded, well branched plants that look magnificent grown in large swathes. A colourful choice for moist borders. Although this Spurge will happily tolerate light shade, it is best grown in full sun for the strongest colour. Height and spread: 45cm (18").

More info
    • 1 x 2 litre potted euphorbia plant

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 2 x 2 litre potted euphorbia plants

    • Despatch:
    •  
    • £17.99
    • Out of stock