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 26 products.
 

Euphorbia 'Rudolph'

A striking Euphorbia x martini cultivar which forms a mound of evergreen, dark-green foliage, topped with chartreuse green flowers in spring. Euphorbia 'Rudolph' earns its name from the bright red shoot tips that develop as winter takes hold, making this perennial stand out among winter borders. This attractive Spurge makes a lovely addition to sunny borders, and once established, is particularly drought tolerant. Height and spread: 60cm (24”). More info
    • 3 euphorbia jumbo plug plants

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 6 euphorbia jumbo plug plants

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

Vinca 'Collection'

Periwinkle 'Collection'

Periwinkle is one of the toughest plants you'll find, flowering relentlessly throughout the summer months in lovely shades of purple, pink and white. This vigorous low growing shrub thrives in virtually any garden position, from full sun to the darkest, shady corners. The clump forming stems provide evergreen dark green and variegated foliage that makes useful, weed suppressing ground cover. This colourful collection of Vinca major are perfect for filling those tricky areas of the garden where little else grows.
  • Collection comprises:
  • Vinca major 'Variegata' - Sky blue flowers set against variegated foliage. Height: 45cm (18"). Spread: 75cm (30").
  • Vinca minor 'Atropurpurea' - Deep plummy purple flowers. Height: 20cm (8") Spread: 50cm (19").
  • Vinca minor f. alba 'Gertrude Jekyll' - Profuse white flowers, carried on compact plants. Height: 20cm (8") Spread: 50cm (19").
More info
    • 6 vinca jumbo plug plants

    • Despatch: By end of September 2015
    •  
    • £11.99
    • 12 vinca jumbo plug plants

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

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
    •  
    • £19.99

Hosta 'Fire and Ice' (Large Plant)

Plantain Lily

A spectacular Hosta with superb reverse variegation. Each leaf of Hosta 'Fire and Ice' has a pristine white centre with a deep green, wavy margin that creates a fabulous colour contrast. Lilac coloured blooms enhance the display throughout July. This striking variety holds an RHS AGM for its garden performance, and is particularly effective at brightening shaded borders. Height: 55cm (22"). Spread: 100cm (39"). More info
    • 1 x 2 litre potted hosta plant

    • Despatch: By end of May 2016
    •  
    • £13.99
    • 2 x 2 litre potted hosta plants

    • Despatch: By end of May 2016
    •  
    • £21.99

Polemonium reptans 'Stairway to Heaven' (Large Plant)

Jacobs Ladder

An attractive cultivar of a cottage garden favourite. Clumps of delicate variegated foliage play host to stems of pretty light blue flowers in April and May. The cream edged leaves of Polemonium reptans 'Stairway to Heaven' are heat tolerant and develop a lovely pink tinge when grown in full sun. Jacobs Ladder is a versatile hardy perennial that needs little maintenance and makes a pleasing companion for Hostas in shadier positions. Height: 40cm (16"). Spread: 45cm (18"). More info
    • 1 x 1 litre potted polemonium plant

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

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

Vinca minor 'Illumination' (Large Plant)

Lesser Periwinkle

Vinca minor 'Illumination' is particularly striking, with gold-splashed foliage, paired with cobalt-blue flowers. This vigorous, carpeting shrub will thrive in virtually any garden position, from sun to deep shade. Its colourful foliage makes it especially useful for brightening dark corners.

Vinca minor is less vigorous than its larger cousin Vinca major, making it easier to confine to its allotted space. Periwinkle plants are easy to grow, flowering relentlessly from spring to autumn. A popular choice for landscaping and low-maintenance gardens. Height: 20cm (8") Spread: 50cm (19").

More info
    • 1 x 10.5cm potted vinca minor plant

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 1 x 3.5 litre potted vinca minor plant

    • Despatch: By end of September 2015
    •  
    • £14.99
    • 2 x 10.5cm potted vinca minor plants

    • Despatch:
    •  
    • £16.99
    • Out of stock
    • 2 x 3.5 litre potted vinca minor plants

    • Despatch: By end of September 2015
    •  
    • £24.99

Aubrieta 'Dr. Mules Variegata' (Large Plant)

Aubretia

Aubrieta is a useful ground cover, trailing plant, which flowers from late spring and into early summer. Plants are carpeting and can be used as a natural weed control in sunny borders, rockeries or on banks and awkward slopes.

Aubrieta 'Dr Mules Variegated' is a sought after variety with violet-blue flowers, set against evergreen cream-lined foliage, which gives all year round interest. Aubrieta is loved by bees and butterflies, and plants will grow in any well-drained soil and is especially useful for dry, sunny borders. Height: 10cm (4").Spread: 60cm (24").

More info
    • 1 x 1 litre potted aubretia plant

    • Despatch: By end of March 2016
    •  
    • £9.99
    • 2 x 1 litre potted aubretia plants

    • Despatch: By end of March 2016
    •  
    • £16.99

Hosta fortunei 'Albomarginata' (Large Plant)

Plantain Lily

Hosta are one of the best shade-loving plants, thriving in moist, damp, dark areas, but also coping well with dry shade. The bold, colourful foliage is robust and weatherproof. Plants are quick-growing, clump-forming and are maintenance-free.

Hosta fortunei ‘Albomarginata' has particularly eye-catching leaves, which are ribbed, puckered and in edged in creamy-white. During the height of summer, a surprise display of showy, sometimes fragrant, flowers. Height: 55cm (22"). Spread: 100cm (39").

More info
    • 1 x 2 litre potted hosta plant

    • Despatch: By end of May 2016
    •  
    • £9.99
    • 2 x 2 litre potted hosta plants

    • Despatch: By end of May 2016
    •  
    • £16.99

Hosta fortunei var. aureomarginata (Large Plant)

Plantain Lily

Hostas are very useful shade-loving plants, which can thrive in moist, damp, dark borders, or difficult, dry shady borders. Plants are quick-growing, clump-forming and the bold leaves are colourful, robust and weatherproof.

Hosta fortunei ‘Aureomarginata' has ribbed leaves, in pure green and edged in golden-yellow. During the summer, purple, bell-shaped flowers appear on showy, 90cm (36") stems. Excellent ground cover for shady borders. Height: 55cm (22"). Spread: 100cm (39").

More info
    • 1 x 2 litre potted hosta plant

    • Despatch: By end of May 2016
    •  
    • £9.99
    • 2 x 2 litre potted hosta plants

    • Despatch: By end of May 2016
    •  
    • £16.99

Houttuynia cordata 'Chameleon' (Large Plant)

Houttuynia cordata 'Tricolor'

Houttuynia is a robust and versatile perennial. Plants are both moisture and drought tolerant, and will thrive in almost any position from sun to dappled shade.

The heart-shaped leaves of Houttuynia cordata 'Chameleon' are completely unique, with splashes of green, gold and red. When crushed, the foliage emits a pungent orange fragrance. Throughout mid-summer, the spreading stems are covered in pure white flowers. Houttuynia makes excellent ground cover through borders or around boggy pond margins. Height: 30cm (12"). Spread: 100cm (39").

More info
    • 1 x 3.5 litre potted houttuynia plant

    • Despatch:
    •  
    • £10.99
    • Out of stock
    • 2 x 3.5 litre potted houttuynia plants

    • Despatch:
    •  
    • £19.99
    • Out of stock

Euphorbia characias 'Glacier Blue' (Large Plant)

Milkweed, Spurge

Smokey blue-green foliage edged with contrasting cream margins makes a fabulous evergreen display. From early Spring, Euphorbia characias 'Glacier Blue' produces whorls of green flowers, each surrounded by a cream coloured bract. Like all of its species, this Spurge is drought tolerant once established, making it perfect for planting in hot, sunny borders and gravel gardens. Height and spread: 60cm (24"). More info
    • 1 x 2 litre potted euphorbia plant

    • Despatch: By end of September 2015
    •  
    • £10.99
    • 2 x 2 litre potted euphorbia plants

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

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