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 40 products.
 

Helianthemum Collection

Rock Rose, Sun Rose

These tough little rock roses are hardy, drought tolerant and trouble-free, producing glorious colour from late spring to midsummer. If pruned after flowering, they'll even reward you with a second flush of blooms in late summer! The nectar-rich flowers, set against a backdrop of silvery, semi-evergreen foliage, are loved by bees and other insects. This helianthemum collection makes excellent groundcover or a versatile addition to rockeries or hot, dry borders. Height: 20cm (8”). Spread: 30cm (12”).
  • Collection comprises the following varieties:
  • Helianthemum 'Ben Mohr' – Orange, saucer shaped flowers.
  • Helianthemum 'Pink Angel' – An abundance of delicate double, pink flowers.
  • Helianthemum 'The Bride' – A pretty, white rock rose with an RHS Award of Garden Merit.
  • Helianthemum 'Ben Fhada' – Bright, primrose yellow blooms with golden egg-yolk centres.
  • Helianthemum 'Fireball' – Fantastic double scarlet petals.
More info
    • 5 jumbo plug plants - 1 of each variety

    • Despatch: By end of August 2014
    •  
    • £14.99
    • 10 jumbo plug plants - 2 of each variety

    • Despatch: By end of August 2014
    •  
    • £19.99

Pansy 'Matrix™ Mixed'

Viola x wittrockiana

 Customer Rating
  • Best In Class for winter pansy - click here for details
  • Colour throughout winter and spring
  • 100% bigger, better and stronger than Pansy 'Universal'

This vibrant blend has been specially bred for their excellent branching habit and super size flowers; and the results speak for themselves! The compact sturdy stems hold their vibrant flower heads high, whatever the weather brings to ensure your garden is filled with colour. Easy to grow, Pansy 'Matrix Mixed' is the perfect plant for all your containers and bedding displays. 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 August 2014
    • + £5 voucher  
    • £6.99
    • 72 plug plants

    • Despatch: By end of August 2014
    • + £5 voucher  
    • £13.98 £9.99

Perennial 'Best Value' Collection

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
    •  
    • £71.88 £19.99

Buddleja 'Buzz'™ Collection

Buddleja davidii, Buddleia, Butterfly Bush

 Customer Rating
  • Unique triple award winner
  • World's first patio buddleja
  • Loved by butterflies and bees

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'™ 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”).
Collection comprises the following varieties. Please click on the product name to view the individual variety:
Buddleja 'Buzz™ Sky Blue'
Buddleja 'Buzz™ Magenta'
Buddleja 'Buzz™ Ivory'

Useful links:

How to grow Buddleja Buzz™

Gardening news: Top 10 best-selling plants of 2012

More info
    • 3 jumbo plug plants - 1 of each variety

    • Despatch: By end of October 2014
    • SAVE £11.98  
    • £26.97 £14.99
    • 6 jumbo plug plants - 2 of each variety

    • Despatch: By end of October 2014
    • SAVE £28.95  
    • £53.94 £24.99

Geum 'Fruit Punch' Collection

Avens

A fruity collection of Geums which are ideal for adding to the front of perennial borders for summer-long colour. The pretty, bowl-shaped blooms are held high above the foliage on elegant, wiry stems, which are ideal for cutting for a vase indoors. Easy to grow, reliable and with a long flowering period, Geum 'Fruit Punch Collection' is an essential addition to your summer garden.


  • Collection comprises the following varieties:
  • Geum 'Mai Tai' - A compact Geum with beautiful, ruffled apricot-orange blooms emerging from contrasting burgundy buds. Height: 45cm (18"). Spread: 40cm (16").
  • Geum 'Double Sunrise' - A cheerful new Geum with gorgeous, double yellow blooms. Height: 50cm (20"). Spread: 45cm (18").
  • Geum 'Flames of Passion' - Soft red, semi-double blooms with contrasting yellow anthers are borne on burgundy stems. Height: 45cm (18"). Spread: 40cm (16").
More info
    • 3 bareroot plants - 1 of each variety

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

    • Despatch: By end of November 2014
    •  
    • £26.99

Phlox Collection (Creeping)

Phlox subulata, Phlox douglasii, Moss Phlox

  • Fragrant ground cover
Delicate in appearance but tough in character, these spreading evergreen perennials soften the edges of paths and grow in dry rockeries or on sunny banks and slopes. Perfect for creating colourful, weed smothering, ground cover. Height: 15cm (6”). Spread: 50cm (20”).
  • Collection comprises:
  • Phlox subulata 'Candy Stripes'
  • Phlox douglassi 'Red Admiral'
  • Phlox subulata 'Calvides White'
  • Phlox subulata 'Scarlet Flame'
  • Phlox subulata 'Emerald Cushion Blue'
More info
    • 5 Postiplug plants

    • Despatch: By end of August 2014
    •  
    • £11.99
    • 10 Postiplug plants

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

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 August 2014
    •  
    • £9.99
    • 72 plug plants

    • Despatch: By end of August 2014
    •  
    • £14.99

Penstemon 'Wedding Bells' Mixed

 Customer Rating
  • World Exclusive
Penstemon cobaea 'Wedding Bells' (also known as Orchestra Mixed) combines some of the best penstemons from T&M's own breeding programme. Satin, bell-shaped flowers in a variety of bright colours and patterns are carried over a particularly long flowering period, above glossy, semi-evergreen foliage. A fantastic alternative to Antirrhinums (snapdragons) in annual bedding schemes, these compact penstemon plants boast large flowers and superb weather resistance. Easy to maintain, these hardy perennials are also attractive to bees. Height: 50cm (18"). Spread: 45cm (18").

Useful links:

Gardening news: Move over marigolds... new bedding plants fly in the face of tradition

More info
    • 6 plug plants

    • Despatch: By end of September 2014
    •  
    • £5.99
    • 12 plug plants

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

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

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

Delosperma 'Hardy Mixed'

Hardy Ice Plant

 Customer Rating
  • Vigorous ground cover, even in the driest of soils

Unique, versatile and vibrant! The fleshy, drought tolerant creeping stems of these hardy Ice Plants make ideal ground cover on sunny banks and poor stony soils. The showy daisy-like flowers of Delosperma 'Hardy Mixed' create a carpet of intense colour, in exclusive new shades that will stop you in your tracks. Fantastic for those hot, dry problem areas where many other plants would fail to establish. Height: 10cm (4"). Spread: 60cm (24").

More info
    • 5 jumbo plug plants

    • Despatch: By end of September 2014
    •  
    • £13.99
    • 10 jumbo plug plants

    • Despatch: By end of September 2014
    •  
    • £19.99
    • 20 jumbo plug plants

    • Despatch: By end of September 2014
    • SAVE £28.97  
    • £55.96 £26.99

Heuchera 'Patchwork' Mix

Coral Flower, Coral Bells

 Customer Rating
  • Mail Order Exclusive

Sprays of delicate, tiny flowers float on wiry stems above neat mounds of vibrant foliage. Prized for their colourful leaves, these versatile semi-evergreen perennials make excellent drifts of ground cover, adding a distinctive splash of colour to the front of borders, or even brightening winter containers. Their airy blooms attract bees and are also useful as cut flowers. Height and spread: 40cm (16”).


More info
    • 3 Postiplugs

    • Despatch: By end of August 2014
    • + FREE £5 voucher  
    • £16.99
    • 6 Postiplugs

    • Despatch: By end of August 2014
    • + FREE £5 voucher  
    • £19.99

Hellebore Collection

Grow one of the UK's favourite winter-flowering plants; each flower bursting with glorious colour; easy to grow and fully hardy! This Hellebore Collection produces intriguing colours, patterns, flecks and ruffles which are a sheer delight during the cold months of winter and early spring. Their leathery palmate foliage has an evergreen presence all year round. Plants are vigorous, low-maintenance and long-lasting in sunny or difficult shady spots, representing excellent value for money. Height and spread: 45cm (18").


  • Collection comprises 5 plants each of:
  • Hellebore 'Hybridizers Singles' - Elegant, single-flowered Hellebores from our hand-pollinated breeding program, with a whole range of patterns and colours including whites, creams, pinks, greens, yellows, purples and black.
  • Hellebore 'Washfield Doubles' - Breathtaking, double-flowered Hellebores from the 'Washfield' collection that are bred to perfection. These delightful doubles come in a wide colour rangeincluding yellows, greens, blacks, reds, apricots and many other shades.

Plants are taken from selection, and we are unable to label colours upon despatch.

More info
    • 10 jumbo plug plants - 5 of each variety

    • Despatch: By end of August 2014
    •  
    • £18.99

Aubrieta 'Royal Mixed'

Aubretia

 Customer Rating
These tough little plants will thrive in the poorest of soils, forming dense mats of evergreen foliage. Aubretia 'Royal Mixed' produces masses of colourful flowers in spring that will brighten rockeries, spill from containers and creep through cracks in walls and paving. Height: 10cm (4”); spread 60cm (24”).
More info
    • 36 plug plants

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

    • Despatch: By end of September 2014
    • SAVE £5.99  
    • £21.98 £15.99