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 50 products.
 

Geranium himalayense 'Birch Double'

Geranium himalayense 'Plenum', Hardy Geranium, Cranesbill

Vigorous and versatile, this superb cranesbill tolerates almost any situation; even full shade. A mass of double purple-pink blooms stand above the delicately serrated foliage which turns to shades of burnt red and orange in autumn. Geranium himalayense 'Birch Double' will quickly blend with other herbaceous perennials to create colourful groundcover and looks equally attractive in herbaceous borders and shady woodland gardens. Height: 25cm (10”). Spread: 60cm (24”). More info
    • 1 bareroot plant

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

Periwinkle 'Collection'

Vinca

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 jumbo plug plants

    • Despatch:
    •  
    • £16.99
    • Out of stock
    • 12 jumbo plug plants

    • Despatch:
    •  
    • £24.99
    • Out of stock

Buddleja 'Buzz™ Magenta'

Buddleja davidii, Buddleia, Butterfly Bush

 Customer Rating
  • T&M exclusive breeding
  • The best plant to attract butterflies to your garden
  • Dwarf patio buddleja - won't take over your garden
  • 15cm (6in) flowers the size of usual buddlejas, but plants are half the size
  • Long-flowering, brightly-coloured blooms attract butterflies
  • Easy to grow and problem-free
  • Plants last more than 10 years
  • Customer favourite

A new twist on a much-loved garden favourite, 'Buzz'™ is the world's first patio buddleja! These attractive, compact plants are loved by bees and butterflies, but won't take over your garden. Buddleja 'Buzz™ Magenta' is easy to grow and problem-free with a super long-flowering period. Perfectly proportioned for patio pots and smaller gardens. Height and spread: 120cm (47”).


Useful links:

How to grow Buddleja Buzz™

More info
    • 1 jumbo plug plant

    • Despatch: By end of March 2015
    •  
    • £7.99

Buddleja 'Flower Power'

Buddleja x weyeriana 'Bicolor', Buddleia, Butterfly Bush

 Customer Rating
  • Best shrub for summer colour
Magical blooms transform from deepest violet to rich butterscotch yellow for an enchanting kaleidoscope of colour. The fragrant flowers of Buddleja 'Flower Power' are certain to attract butterflies and other beneficial insects to your garden. This colourful, low maintenance butterfly bush has a neat compact habit – just perfect for small gardens.Height and spread: 200cm (79").
More info
    • 1 jumbo plug plant

    • Despatch: By end of March 2015
    •  
    • £12.99
    • 3 jumbo plug plants

    • Despatch: By end of March 2015
    • Treble up 1 to 3 plugs for 1p extra  
    • £13.00

Campanula 'Mixed'

Bellflower

  • Exclusive collection
A robust mix of Campanula plants bearing semi-double, cup-shaped blooms in shades of white, purple and blue. These pretty flowers are borne in abundance on tall, slender stems from May to July, making a wonderful addition to the middle of perennial borders. Campanula 'Mixed' is ideal for creating drifts of summer colour in cottage garden borders where it will return year after year. Height: 75cm (30"). Spread: 45cm (18").
More info
    • 3 x 7cm potted plants

    • Despatch: By end of March 2015
    •  
    • £19.99
    • 6 x 7cm potted plants

    • Despatch: By end of March 2015
    • SAVE £14.99  
    • £39.98 £24.99

Osteospermum 'Tresco Purple' (Hardy)

Osteospermum 'Nairobi Purple', African Daisy, Cape Daisy

Bold pink daisy flowers open every morning to greet the sun. Versatile and resilient, hardy Osteospermum 'Tresco Purple' will thrive in hot, dry, neglected conditions and yet is one of the longest-flowering plants in the garden! Expect vibrant summer colour and weed suppressing ground cover from this easy to grow, sun loving Cape Daisy. Height: 40cm (16"). Spread: 90cm (36").
More info
    • 3 jumbo plug plants

    • Despatch: By end of April 2015
    •  
    • £13.99

Comfrey 'Bocking 14'

Symphytum x uplandicum 'Bocking 14', Russian Comfrey

Grow your own soil conditioner! Comfrey 'Bocking 14' contains high levels of basic NPK nutrients and because it is a sterile hybrid, it won't self seed all over your garden.


The nutrient rich foliage of comfrey can be used as a compost activator, mulch, or soaked in barrels of water for 3 to 5 weeks to make a useful liquid feed for tomatoes and beans. Scatter the wilted leaves throughout potato trenches just before planting, to fertilise the crop and improve their flavour! Once established, this quick growing plant can be cut 3 or 4 times throughout the growing season, for a constant supply of nutrient rich, organic, comfrey fertiliser. Height: 100cm (40”). Spread: 75cm (30”).


Useful links:

How to grow herbs

More info
    • 5 root cuttings

    • Despatch: By end of March 2015
    •  
    • £11.99

Verbena bonariensis

Glandularia, Verbena patagonica

Tightly clustered florets form glowing lavender flower heads that float atop stiffly upright, branching stems. The long lasting blooms of Verbena bonariensis attract clouds of bees and butterflies. This perennial verbena has enjoyed a resurgence in popularity in recent years, associating beautifully with grasses for a tranquil planting scheme, or adding a touch of architectural style to the back of herbaceous borders. This elegant perennial is at its most effective when planted in large swathes. Height: 200cm (79”). Spread: 45cm (18”).
More info
    • 6 plug plants

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

    • Despatch:
    •  
    • £7.99
    • Out of stock

Wallflower 'Winter Joy'

Erysimum, Cheiranthus

 Customer Rating

Wallflower 'Winter Joy' is a striking fragrant variety with cheery mauve blooms. This evergreen erysimum hybrid has a neat, compact habit making it perfect for beds, borders and containers. Versatile and undemanding, this short lived perennial tends to be grown as a biennial, and is tough enough to cope in even the poorest of soils. Height and spread: 50cm (20").

More info
    • 4 jumbo plug plants

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

Alstroemeria 'Butterfly Hybrids'

Peruvian Lily

  • WORLD EXCLUSIVE
An old strain of Peruvian lilies called the 'Ligtu Hybrids' included some great purples, but over the years these got lost. Now only the pinks and purples have been selected to create this eye-catching mix. One of the easiest cut flowers to grow and definitely one of the most impressive. Height and spread: 60cm (24”).
More info
    • 3 Postiplug plants

    • Despatch: By end of March 2015
    •  
    • £9.99
    • 6 Postiplug plants

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

Penstemon 'Juicy Grape'

This popular hardy perennial deserves a prime spot in the garden. Wide trumpet shaped flowers in a fruity shade of purple appear in summer above a flush of glossy, semi-evergreen foliage. The long-lasting blooms of Penstemon 'Juicy Grape' continue well into autumn, long after other plants have run out of steam. Undemanding and easy to grow, Penstemons tolerate almost any position in the garden, regardless of rain or drought, and even resist slug damage. What more could you ask of a plant? Height: 60cm (24"). Spread: 45cm (18").
More info
    • 3 Postiplug plants

    • Despatch: By end of March 2015
    •  
    • £9.99

Hellebore 'White Spotted'

  • New in 2014
  • The very best hellebores that money can buy

Exquisite cup shaped, spotted pink blooms with a pure white edge appear like jewels in dull winter borders. Hellebore ‘White Spotted’ 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").



Thompson & Morgan inherited the highly-commended hellebore breeding programme of Elizabeth Strangman when she retired and we are immensely proud to carry on her legacy, perfecting the amazing colours and forms of this wonderful perennial.
More info
    • 1 x 9cm potted plant

    • Despatch: By end of March 2015
    •  
    • £13.99