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 80 products.
 

Verbena bonariensis 'Lollipop' (Large Plant)

Glandularia, Verbena patagonica

  • New in 2015

Like its parents, Verbena bonariensis 'Lollipop' boasts the same tight clusters of floating purple flowers, but has short, compact stems that reach only half the height. Well shaped, uniform plants with an open airy habit attract butterflies to their glowing blooms from June to September. This fabulous hardy dwarf verbena is perfectly proportioned for patio pots and the front of borders where it creates a wonderful delicate airy effect. Height and spread: 60cm (24").

More info
    • 1 x 1 litre potted verbena plant

    • Despatch: By end of July 2015
    •  
    • £7.99
    • 2 x 1 litre potted verbena plants

    • Despatch: By end of July 2015
    • Save £2.99  
    • £12.99

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 verbena plug plants

    • Despatch: By end of August 2015
    •  
    • £5.99
    • 12 verbena plug plants

    • Despatch:
    •  
    • £7.99
    • Out of stock

Alstroemeria 'Butterfly Hybrids'

Peruvian Lily

  • T&M 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 alstroemeria Postiplug plants

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

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

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 buddleja jumbo plug plant

    • Despatch: By end of July 2015
    • Save £1  
    • £7.99 £6.99

Verbena bonariensis 'Lollipop'

Glandularia, Verbena patagonica

 Customer Rating
  • Unique mini Verbena for your patio
Like its parents, Verbena bonariensis 'Lollipop' boasts the same tight clusters of floating purple flowers, but has short, compact stems that reach only half the height. Well shaped, uniform plants with an open airy habit attract butterflies to their glowing blooms from June to September. This fabulous hardy dwarf verbena is perfectly proportioned for patio pots and the front of borders where it creates a wonderful delicate airy effect. Height and spread: 60cm (24").
More info
    • 3 verbena jumbo plug plants

    • Despatch: By end of July 2015
    •  
    • £9.99
    • 6 verbena jumbo plug plants

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

Buddleja 'Buzz™ Indigo'

Buddleja davidii, Buddleia, Butterfly Bush

  • Order early - limited stocks
Our sensational patio Buddlejas are taking the gardening world by storm - and here’s a brand new colour to add to the range! Dusky, deep blue flowers smother the short, bushy stems of Dwarf Buddleja Buzz™ Indigo', attracting clouds of butterflies to its nectar rich blooms. This lovely compact shrub is perfectly proportioned for patio pots and smaller gardens. Height and spread: 120cm (47").

Useful links:

How to grow Buddleja Buzz™

More info
    • 1 buddleja jumbo plug plant

    • Despatch: By end of July 2015
    • SAVE £1  
    • £7.99 £6.99
    • 2 buddleja jumbo plug plants

    • Despatch: By end of July 2015
    •  
    • £9.99
    • 3 buddleja jumbo plug plants

    • Despatch: By end of July 2015
    •  
    • £16.99
    • 4 buddleja jumbo plug plants

    • Despatch: By end of July 2015
    • SAVE £1.99  
    • £19.98 £17.99

Meconopsis baileyi 'Hensol Violet'

Himalayan Blue Poppy, Tibetan Blue Poppy, Meconopsis betonicifolia

  • New in 2015
The 'must-have' Himalayan Blue Poppy' has a rival in this exquisite cultivated form. Bright violet-purple, almost shimmering flowers, with the merest hint of red, make a stunning addition planted in groups in shady borders and woodland areas. This 'collectors plant' still surprises countless poppy-lovers who have never seen this unusual perennial before. Meconopsis betonicifolia 'Hensol Violet' is so named for its origins from Hensol Castle, South Wales, where it was discovered by Lady Henderson. Height: 90 (36"). Spread 30cm (12").
More info
    • 1 x 9cm potted meconopsis plant

    • Despatch: By end of October 2015
    •  
    • £11.99
    • 2 x 9cm potted meconopsis plants

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

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 buddleja jumbo plug plant

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

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

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 osteospermum jumbo plug plants

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

Acanthus spinosus (Large Plant)

Bear's Breeches

Acanthus spinosus is robust, architectural plant with exotic-looking foliage and erect spikes of equally exotic blooms. They may look tropical, but Acanthus is fully hardy in the UK, and enjoys sun or shade on a well-drained soil, is very drought tolerant and can tolerate exposed conditions.

Acanthus are also known as Bear's Breech, they make an excellent herbaceous perennial for mixed borders, growing up to 1.2m (3.9') and filling gaps easily. The spiny, purple-tinged flowers appear from late spring to summer. An easy to maintain border plant that comes back year after year. Height: 1.2m (3.9'). Spread: 1m (39").

More info
    • 1 x 1 litre potted acanthus plant

    • Despatch: By end of July 2015
    •  
    • £10.99
    • 2 x 1 litre potted acanthus plants

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

Iris siberica Collection

  • New in 2015

The breeding behind our unique iris collection brings more grace and beauty to this cottage garden favourite than ever before. Four exclusive varieties, all enhanced with crested double iris flowers for extra elegance and a frenzy of summer colour in your borders. Each flower has in excess of 20 petals, bringing a rose-like appearance to the luxuriant blooms. Iris sibirica Collection are tough performers, equally at home in moist, boggy soils and dry areas, and will enhance any garden border, especially mixed with other flower hardy perennials. Lush grass-like foliage makes for a good seasonal border filler. Height: 90cm (36"). Spread 35cm (14").


  • Collection comprises:
  • Iris 'Imperial Opal' - Translucent lavender-pink blooms with light edging and white throat.
  • Iris 'Pink Parfait' - Soft lavender-pink blooms with lighter edging. A yellow centre with white halo can be seen as flowers open fully.
  • Iris 'Concord Crush' - Rich violet-blue blooms with gold and white central blaze.
More info
    • 3 bare root iris plants - 1 of each variety

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

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 August 2015
    •  
    • £11.99
    • 12 vinca jumbo plug plants

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