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.



We have found 14 products.
 

Dianthus barbatus 'Sweet'

Sweet William

  • Summer-flowering Sweet Williams!

Enjoy these delightfully fragrant Sweet Williams all summer long! Clusters of sweetly scented flowers in shades of red, white and purple are borne atop stiff upright stems from June through to September. Superb for cutting for a vase indoors, the vibrant flowers of Dianthus barbatus 'Sweet' are also attractive to bees. Often grown as a biennial, this short lived perennial is ideal for cottage garden beds and borders. Height: 45cm (18"). Spread: 30cm (12").


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

More info
    • 6 plug plants

    • Despatch: By end of May 2015
    •  
    • £4.99
    • 24 plug plants

    • Despatch: By end of May 2015
    •  
    • £13.99
    • 48 plug plants

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

Gaura lindheimeri 'Sparkle White'

This stunning hardy perennial makes a fabulous border plant! Its graceful, slender stems are topped with a flurry of dazzling white, starry blooms that still look fresh and airy at the end of summer. This bushy, clump forming variety has a neat, compact habit that makes it perfect for the front of sunny borders or edging paths as a mini hedge. Once established, Gaura lindheimeri 'Sparkle White' even copes well during periods of drought. Height and spread: 45cm (18").
More info
    • 24 plug plants

    • Despatch: By end of May 2015
    •  
    • £12.99
    • 48 plug plants

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

Anemone 'Wild Swan'

Windflower

  • Award winning new anemone, a Chelsea champion
A truly beautiful perennial, and winner of the RHS Chelsea Flower Show 2011 Plant of the Year title. Trialled over a 10 year period, Anemone 'Wild Swan' is a cross between early and late flowering anemones and as such, the unique flowers bloom intermittently from April right through to the autumn. Each elegant white flower is backed with pretty blue streaks that look particularly eye catching when the flowers nod closed in the mornings and evenings. A superb perennial for borders and woodland gardens with a neat, compact habit. Height: 45cm (18?). Spread: 60cm (24?)
More info
    • 1 x 7cm potted plant

    • Despatch: By end of April 2015
    •  
    • £13.99
    • 2 x 7cm potted plants

    • Despatch: By end of April 2015
    •  
    • £19.99

Coreopsis grandiflora 'Presto'

Tickseed

 Customer Rating
Coreopsis 'Presto' is so long-flowering and colourful that you can mix it up with summer bedding annuals to achieve a truly amazing, long lasting display. Neat, compact plants are smothered in golden-yellow, semi-double flowers all summer long. This versatile tickseed plant will grow almost anywhere, even in dry soil! Height and spread: 45cm (18”).
More info
    • 6 plug plants

    • Despatch: By end of May 2015
    •  
    • £4.99
    • 36 plug plants

    • Despatch: By end of May 2015
    •  
    • £10.99
    • 72 plug plants

    • Despatch: By end of May 2015
    • Double up 36 to 72 for £5 extra  
    • £21.98 £15.99

Scabious 'Blue Jeans'

Scabiosa, Pincushion Flower

 Customer Rating
An abundance of blue pincushion scabious flowers will attract bees and butterflies throughout summer. The tall, wiry stems can also be cut to create a pretty display indoors. Scabiosa 'Blue Jeans' blends well among cottage garden borders, where they look particularly effective planted in large drifts. Height and spread: 45cm (18").
More info
    • 6 plug plants

    • Despatch: By end of May 2015
    •  
    • £4.99
    • 12 plug plants

    • Despatch: By end of May 2015
    •  
    • £8.99

Heuchera 'Prince of Silver' (Large Plant)

Coral Flower, Coral Bells

  • New in 2015
The shimmering leaves of Heuchera ‘Prince of Silver’ are overlaid with dark purple veins which age to a gentle shade of mossy green. In spring, the eye-catching foliage is joined by delicate sprays of creamy flowers that emerge from pink buds. This lovely herbaceous evergreen forms neat clumps which provide year round interest in containers and borders. A superb perennial that will attract pollinating insects to its nectar rich blooms. Height: 45cm (18"). Spread: 30cm (12").
More info
    • 1 x 2 litre potted heuchera plant

    • Despatch: By end of April 2015
    •  
    • £8.99
    • 2 x 2 litre potted heuchera plants

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

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: By end of April 2015
    •  
    • £9.99
    • 2 x 2 litre potted euphorbia plants

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

Coreopsis grandiflora (Large Plant)

Tickseed

This reliable, easy to grow perennial produces sunshine yellow blooms with serrated margins. Coreopsis flowers are always popular with bees and butterflies and make excellent cut flowers too. Flowering almost continually throughout summer and well into autumn, this versatile tickseed plant will grow almost anywhere, even in dry soil! Height and spread: 45cm (18"). More info
    • 1 x 1 litre potted plant

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

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

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").

More info
    • 1 x 1 litre potted plant

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

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

Wallflower 'Canaries Yellow' (Large Plant)

Erysimum, Cheiranthus

Wallflower ‘Canaries Yellow’ is an amazing variety, with sulphur-yellow flowers, on compact, bushy evergreen plants. Perennial Wallflowers begin flowering as early in the year as February, continuing through to April with a procession of fragrant, colourful flowers.

Grow in borders, rockeries or mix with primroses and pansies for spring-flowering patio pots. Versatile and quite undemanding, this short-lived perennial is tough enough to cope in even the poorest of soils. Height and spread: 45cm (18").

More info
    • 1 x 1.5 litre potted plant

    • Despatch: By end of April 2015
    •  
    • £9.99
    • 2 x 1.5 litre potted plants

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

Wallflower 'Variegatum' (Large Plant)

Erysimum linifolium, Cheiranthus

Perennial Wallflowers are essential for low-maintenance gardens, and they will flower twice a year, once during winter/spring, then again towards the end of the summer.

This variegated Wallflower produces the mauve, colour-changing flowers, set against evergreen cream-lined foliage. Grow Wallflower ‘Variegatum’ in borders, rockeries or mix with bedding plants for attractive, spring-flowering patio pots and windowboxes. Versatile and quite undemanding, this short-lived perennial is tough, will grow in the poorest of soils and is drought tolerant once established. Height and spread: 45cm (18").

More info
    • 1 x 1.5 litre potted plant

    • Despatch: By end of April 2015
    •  
    • £9.99
    • 2 x 1.5 litre potted plants

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

Poppy 'Champagne Bubbles'

Papaver nudicaule, Arctic Poppy, Icelandic Poppy

Stiff, wiry stems carry the dazzling flowers of Poppy 'Champagne Bubbles' above rosettes of hairy, blue-green foliage. This brightly coloured Icelandic poppy makes a superb display dotted throughout rockeries and lining walkways. Try planting it en masse for a sea of graceful upward facing blooms. This charming biennial attracts insects to its nectar rich blooms and also makes a lovely, though short lived cut flower. Height: 45cm (18"). Spread: 30cm (12"). More info
    • 12 plug plants

    • Despatch:
    •  
    • £7.99
    • Out of stock