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 41 products.
 

Perennial 'Best Value' Collection

 Customer Rating

Fill your beds and borders with this bargain collection of herbaceous perennials. Perennial plants bloom year after year, and many can also be cut and brought into the house for beautiful flower arrangements. Height: Up to 1m (39"). Spread: 45cm (18").

  • Collection includes;

  • Poppy 'Pizzicato' Mixed - A neat semi dwarfing variety, producing up to 20 large flowers per plant! Height: 50cm (19"). Spread: 30cm (12").
  • Digitalis 'Dalmation Mixed' - Well branched, compact, dwarf plants. Height: 50cm (20"). Spread: 40cm (16").
  • Echinacea 'Primadonna' - Beautiful pink daisy flowers with petals that radiate outwards instead of downwards. Height: 85cm (33"). Spread: 45cm (18").
  • Coreopsis 'Presto' - Neat, compact plants are smothered in golden-yellow, semi-double flowers all summer long. Height and spread: 45cm (18").
  • Verbena Bonariensis- Tightly clustered florets form glowing lavender flower heads that float atop stiffly upright, branching stems. Height: 200cm (78"). Spread: 45cm (18").
  • Scabiosa 'Blue Jeans' - Blue pincushion flowers attract bees and butterflies throughout summer. Height and spread: 45cm (18").
  • Aquilegia 'Swan' Mixed - An abundance of large flowers on upright, multi-branched stems Height: 30cm (12"). Spread: 25cm (10").
  • Geum 'Blazing Sunset' - Fully double, large scarlet blooms are borne over a long period in summer. Height and spread: 60cm (24").
  • Carnation 'Ever-blooming Mixed' (Hardy) - Richly fragrant blooms that are ideal for cutting. Height and spread: 30cm (12").
  • Gaillardia 'Arizona Sun' - A constant display of large flower heads in fiery shades of orange, yellow and red. Height: 30cm (12"). Spread: 45cm (18").
  • Delphinium 'Pacific Giants' - Excellent for adding structure and presence to the back of borders. Height: 150cm (60"). Spread: 75cm (30").
  • Leucanthemum x superbum 'White Knight' - Pure white single flowers are produced in constant supply throughout summer.
More info
    • 72 plug plants - 6 of each variety

    • Despatch: By end of September 2014
    • SAVE £51.89  
    • £71.88 £19.99

Fuchsia 'Pink Elephant'

  • World Exclusive
The double flowers of Fuchsia 'Pink Elephant' unfurl from long, rose-like buds to reveal layer upon layer of sumptuous pale pink ruffles. With a gentle cascading habit, this lovely half-hardy fuchsia makes a spectacular summer display in hanging baskets, flower pouches® and containers. Height: 25cm (10"). Spread: 30cm (12").

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

More info
    • 5 Postiplug plants

    • Despatch:
    •  
    • £10.99
    • Out of stock
    • 10 Postiplug plants

    • Despatch: By end of March 2015
    •  
    • £15.99

Mazus reptans

  • Try a new ground cover idea
This low growing, matt-forming perennial is perfect for filling gaps between stepping stones or at the front of sheltered borders and rockeries. The spreading foliage of Mazus reptans forms a dense carpet that is covered in pretty lilac-blue flowers with a yellow-spotted lower lip. This hardy, ground cover alpine has a long flowering period from late spring to July. Height: 5cm (2"). Spread: 30cm (12").
More info
    • 5 jumbo plug plants

    • Despatch: By end of September 2014
    •  
    • £14.99
    • 10 jumbo plug plants

    • Despatch: By end of September 2014
    • SAVE £9.99  
    • £29.98 £19.99

Polyanthus eliator 'Crescendo® Mixed' F1 Hybrid

Primula, Oxlip

 Customer Rating
  • Best In Class for polyanthus click here for details
  • Polyanthus are a majestic spring container choice
  • RHS Award of Garden Merit

Give your garden a dose of springtime magic and banish the winter gloom. Polyanthus 'Crescendo®' paints a rainbow of colour with its large blooms in bright colours making bold splashes in pots, window boxes and borders.The flowers are long-lasting, fragrant and produced in abundance upon strong stems which are held above neat rosettes of foliage. With excellent winter hardiness and superior disease resistance, you can expect repeat performances year after year. By far the best bedding polyanthus available.

 

Culinary note: Primula flowers are edible.

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

More info
    • 36 plug plants

    • Despatch: By end of September 2014
    •  
    • £9.99
    • 72 plug plants

    • Despatch: By end of September 2014
    • SAVE £4.99  
    • £19.98 £14.99

Buddleja 'Buzz™ Sky Blue'

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

These attractive, compact plants are loved by bees and butterflies, but won't take over your garden. Buddleja 'Buzz™ Sky Blue' is easy to grow and smothered with blooms all summer long. 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 November 2014
    •  
    • £8.99

Geranium 'Double Flowered Collection'

Hardy Geranium, Cranesbill

Enjoy our selection of the very best double-flowered cranesbills. Every bloom is a pretty posy of vibrant colour and unlike their single flowered relations, these hardy geraniums won't self seed, so the flowers last even longer. These cottage garden favourites will quickly blend with other herbaceous perennials to create colourful groundcover, and look equally attractive in borders or containers. Height: Up to 90cm (36"). Spread: 60cm (24").
  • Collection comprises 1 plant each of:
  • Geranium himalayense 'Birch Double' (left) - Vigorous and versatile, this superb cranesbill tolerates almost any situation; even full shade.
  • Geranium pratense 'Laura' (bottom right) - Long lasting, weather resistant, double white flowers are produced from June onwards on upright, downy stems.
  • Geranium pratense 'Summer Skies' (top right) - The double blooms of Geranium pratense 'Summer Skies' may look delicate but this hardy herbaceous perennial is tough and undemanding.
More info
    • 3 bareroot plants - 1 of each variety

    • Despatch: By end of November 2014
    • SAVE £19.98  
    • £38.97 £18.99
    • 6 bareroot plants - 2 of each variety

    • Despatch: By end of November 2014
    • SAVE £48.95  
    • £77.94 £28.99

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 September 2014
    •  
    • £5.99
    • 36 plug plants

    • Despatch: By end of September 2014
    •  
    • £10.99
    • 72 plug plants

    • Despatch: By end of September 2014
    • Double up 36 to 72 for £5 extra  
    • £21.98 £15.99

Gerbera 'Yellowstone' (Landscape Series)

Barberton Daisy, Transvaal Daisy

  • Mail order exclusive
  • Best in class for patio gerberas
  • Up to 50 blooms per plant
  • 10 flowers in full bloom at any one time
  • Each flower head is at least 5in in diameter
Simple, well-defined, sunshine yellow blooms with a truly classic appeal. From summer through to autumn, this robust half-hardy gerbera will produce a non-stop supply of stunning gerbera daisies. Each bloom measures up to 12cm (5”) in diameter, and will last for 2 weeks in a vase as a cut flower. Landscape gerbera 'Yellowstone' forms a compact, uniform plant that looks sensational in patio containers. With winter protection, this exceptional gerbera will reward you with more and more daisy flowers, year after year. Height and spread: 45cm (18”).
More info
    • 1 x 9cm potted plant

    • Despatch: By end of September 2014
    • SAVE £4.00  
    • £11.99 £7.99

Tropaeolum speciosum

Flame Nasturtium, Flame Flower, Flame Creeper

Exotic, spurred blooms in bright, vermillion red appear throughout summer in a rich explosion of colour. The vibrant blooms are followed by spherical blue fruits set against a backdrop of attractive dark green foliage. Tropaeolum speciosum is an intriguing climbing perennial that prefers a cool, sheltered position. This sought after plant creates a spectacular sight when grown through mature shrubs or scrambling over low walls. Height: 3m (10'). Spread: 1.2m (4').
More info
    • 2 bareroot plants

    • Despatch: By end of January 2015
    •  
    • £12.99
    • 4 bareroot plants

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

Pansy 'Avalanche Bronze Lavender' (Trailing)

Viola x wittrockiana

 Customer Rating

Alluring blooms resembling tiny faces! These free-flowering, compact plants are smothered in an avalanche of boldly coloured flowers with a delicate fragrance throughout spring. Viola 'Avalanche Bronze Lavender' is superb in baskets, containers, Flower Pouches® and window boxes. Height and spread: 23cm (9”).


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

More info
    • 36 plug plants

    • Despatch: By end of September 2014
    •  
    • £12.99
    • 72 plug plants

    • Despatch: By end of September 2014
    •  
    • £16.99

Chrysanthemum 'Incurved Mixed'

Sturdy stems bear rounded blooms with magnificent incurved petals that are perfect for long-lasting flower arrangements. Savour the colour of these magnificent half hardy chrysanthemums in your autumn garden when summer bedding plants have faded away. This vibrant collection will reward you with flamboyant blooms right through until the frosts. Disbudding the stems will produce fewer, but larger blooms, or let them grow naturally for a mass of smaller flowers. Height: 90cm (36"). Spread: 45cm (18").


Companion planting: Try growing Chrysanthemums with chives, whose aromatic leaves will deter aphids.


Useful links:

Companion Planting

More info
    • 5 Postiplug plants

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

Chrysanthemum 'Bumper Pack'

Subtle autumnal shades harmonise with striking, bold colours in this outstanding chrysanthemum collection. A bold combination of tall, half hardy varieties with reflexed and incurved petals, mixed with lower growing, hardy chrysanthemums that form neat mounds of colour. Savour the colourful shades of these magnificent perennials in your autumn garden when summer bedding plants have faded away. Their vibrant blooms also make excellent and long lasting cut flowers. Height: Up to 90cm (36”). Spread: 45cm (18”).


Chrysanthemum collection contains 5 plants each of:
Incurved Mixed – Sturdy stems bear rounded blooms with magnificent incurved petals.
Hardy Patio Mixed – Well branched plants produce rounded domes of colour.
Decorative Mixed – Backward facing petals create colourful flower heads on strong stems.


Companion planting: Try growing Chrysanthemums with chives, whose aromatic leaves will deter aphids.


Useful links:

Companion Planting

More info
    • 15 Postiplug plants - 5 of each variety

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