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 95 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 March 2015
    • SAVE £51.89  
    • £71.88 £19.99

Phlox Collection (Creeping)

Phlox subulata, Phlox douglasii, Moss Phlox

 Customer Rating
  • 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 March 2015
    •  
    • £11.99
    • 10 Postiplug plants

    • Despatch: By end of November 2014
    • SAVE £6.99  
    • £23.98 £16.99

Geranium 'T&M's Choice Mixed' F1 Hybrid (Garden-Ready)

Pelargonium, Zonal Geranium, Zonal Pelargonium

  • New in 2014
  • Stunning blooms will last all summer

Our garden-ready plants are now even bigger and better! You can plant our garden-ready plants straight into the garden when they arrive - it couldn’t be easier! There’s no need to re-pot them or to grow them on - just plant and water them. Pretty soon you’ll be enjoying their wonderful displays of colour. If you haven’t got the time or the room to grow plants from small seedlings, then these are for you! You’re sure to get great results because we’ve done the crucial early growing for you. Just plant, water and enjoy!


An improved mix of our best seller Geranium ‘Jackpot’! These weather tolerant, F1 hybrid pelargoniums have more than enough vigour to ensure a spectacular, free flowering display throughout summer. Geranium 'T&Ms Choice Mixed' produce masses of colourful single blooms on neat compact plants. Perfect for filling beds, borders and patio containers. Height: 40cm (16"). Spread: 35cm (14").


Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.

 

More info
    • 30 garden-ready plants

    • Despatch: By end of May 2015
    • Add a 2nd pack for just £5  
    • £14.99

Geranium 'Black Velvet Mix' F1

Pelargonium, Zonal Geranium, Zonal Pelargonium

  • Rarely available
For hassle-free gardening, look no further than our pre-planted pots for easy summer-long colour. We’re always on the look out for ways to make life simpler for our gardening customers. So what could be easier than pots which are already planted up? We’ve taken the hard work out of creating wonderfully colourful displays - just order our pre-planted pots and baskets of your favourite varieties and position them where you’ll most enjoy their summer colour. Then all you need to do is water them and wait!

Dark, enigmatic foliage makes a startling foil for the beguiling bright blooms of Geranium 'Black Velvet Mix' in four striking colours. The unique black leaves, produced on upright bushy plants, are edged with just a hint of green. This boldly coloured zonal geranium makes a striking addition to pots, beds and borders for long lasting summer colour. Height: 40cm (14”). Spread: 30cm (12”). Patio Pot: 33cm diameter, 26cm high.
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.

 

More info
    • 1 x garden-ready pot with 3 plants

    • Despatch: By end of June 2015
    • Add a 2nd pot for just £9.99  
    • £19.99

Geranium 'Supreme Mixed'

Pelargonium, Ivy-leaved Geranium, Ivy-leaved Pelargonium

  • New in 2014
For hassle-free gardening, look no further than our pre-planted baskets for easy summer-long colour. We’re always on the look out for ways to make life simpler for our gardening customers. So what could be easier than hanging baskets which are already planted up? We’ve taken the hard work out of creating wonderfully colourful displays - just order our pre-planted baskets of your favourite varieties and position them where you’ll most enjoy their summer colour. Then all you need to do is water them and wait!

A kaleidoscope of vibrant pelargonium flowers fill the trailing stems of Geranium ‘Supreme Mixed’. These stunning Ivy Leaf geraniums are perfect for creating long lasting hanging basket displays that won’t disappoint. Each basket has 5 plants. Height: 30cm (12"). Spread: 45cm (18"). Hanging Basket: 27cm diameter.
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.

 

More info
    • 1 x garden-ready basket with 5 plants

    • Despatch: By end of June 2015
    • Add a 2nd basket for just £9.99  
    • £19.99

Gerbera 'Sweet Collection' (Hardy)

Barberton Daisy, Transvaal Daisy

  • New in 2014
  • World exclusive
  • Bigger and better winter hardy gerberas
  • Three seasons of stunning colour
Growing Gerberas outdoors was virtually inconceivable ten years ago. Now these 2nd generation hardy Gerberas can be grown year round in the border! Gerbera 'Sweet Collection’ produces plenty of classic daisy blooms that are twice the size of other hardy Gerberas, and make fabulous cut flowers. Blooming reliably from June to October, these wonderful clump forming hardy perennials make a big impact in borders and patio containers. Height and spread: 45cm (18").
More info
    • 3 x 7cm potted plants

    • Despatch: By end of October 2014
    • SAVE £4.98  
    • £29.97 £24.99

Primrose 'Planets Mixed'

Primula

  • New in 2014
  • Distinctive new colours
Freshen up tired spring borders with these exciting new Primulas! Each shapely flower of Primrose ‘Planets Mixed’ has a contrasting inner ring of colour that makes them really stand out from crowd. This unique feature has never been seen before in Primroses - so it’s sure to attract attention. Grow them along path edges or in prominent patio containers where they can really be appreciated. Height and spread: 20cm (8").
More info
    • 12 plug plants

    • Despatch: By end of September 2014
    •  
    • £7.99
    • 24 plug plants

    • Despatch: By end of September 2014
    • SAVE £4.99  
    • £15.98 £10.99
    • 48 plug plants

    • Despatch: By end of September 2014
    • SAVE £14.97  
    • £31.96 £16.99

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 October 2014
    • + FREE £5 voucher  
    • £6.99
    • 72 plug plants

    • Despatch: By end of October 2014
    • SAVE £3.99 + FREE £5 voucher  
    • £13.98 £9.99

Primrose 'World's Most Scented Mix'

Primula

- The best ever fragrance mix
- Citrus and honey fragrance
- Colour throughout winter and spring

 

Let the sweet citrus scent and the fresh colour mix of these gorgeous primroses transport you into spring. Primrose 'Worlds Most Scented Mix' is our best ever selection of fragrant primroses in a range of bright, cheery colours that will look fabulous planted among your spring bulbs. Grow some in a pot by the back door to really enjoy their perfume. Height and spread: 20cm (8").

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 October 2014
    •  
    • £11.99
    • 72 plug plants

    • Despatch: By end of October 2014
    • Double up 36 to 72 for £5 extra  
    • £23.98 £16.99

Primrose 'Alaska Improved Mixed'

Primula

  • Exclusive extra-hardy primrose mix
  • Up to 20 colours
  • Best In Class for widest primrose colour mix - click here for details
Plant a rainbow of primroses with up to 20 different colours. Primrose 'Alaska Improved Mixed' are super hardy, blooming from winter all the way through to late spring. Once established in beds, borders and containers, these easy to grow perennials will virtually look after themselves. Height and spread: 20cm (8”).

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 October 2014
    •  
    • £12.99
    • 72 plug plants

    • Despatch:
    • SAVE £7.99  
    • £25.98 £17.99
    • Out of stock

Most Scented Bumper Pack

Treat yourself to this fantastic bumper pack of the most scented bedding and border plants, and save yourself £££s! These great value perennials will fill your garden with fragrance and colour in a fabulous springtime display. You'll receive 12 plug plants of each of the following varieties - that's 72 plug plants in total! Height and spread: Up to 30cm (12").

  • Most Scented Bumper Pack comprises 12 plug plants each of:
  • Primrose 'World's Most Scented Mix' - Let the sweet citrus scent and the fresh colour mix of these reliable perennials transport you into spring.
  • Viola 'Most Scented' Mix - This exclusive blend exudes a spring-like perfume even on the coolest of winter days.
  • Stocks 'Most Scented' Mix - Specially selected for their strong and spicy fragrance and fabulous colours!
  • Pansy 'Most Scented' Mix - Larger than violas, with a cheery bright colour mix that will continue well into late spring.
  • Polyanthus 'Most Scented' Mix - Plenty of scented flowers on short, stocky stems, above neat rosettes of lush foliage.
  • Wallflower 'Most Scented' Mix - Versatile and undemanding, this tough perennial can cope in even the poorest of soils.
More info
    • 72 plug plants - 12 of each variety

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

Geranium 'Black Velvet Mix' F1

Pelargonium, Zonal Geranium, Zonal Pelargonium

 Customer Rating
  • Rarely available

Dark, enigmatic foliage makes a startling foil for the beguiling bright blooms of Geranium 'Black Velvet Mix' in four striking colours. The unique black leaves, produced on upright bushy plants, are edged with just a hint of green. This boldly coloured zonal geranium makes a striking addition to pots, beds and borders for long lasting summer colour. Height: 40cm (14”). Spread: 30cm (12”).


Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 24 plug plants

    • Despatch: By end of March 2015
    •  
    • £11.99
    • 48 plug plants

    • Despatch: By end of March 2015
    • Double up 24 to 48 for £5 extra  
    • £16.99