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.


For beautiful summer flowers browse our range of annual plants.



We have found 38 products.
 

Giant Geranium Collection

Pelargonium

  • The biggest geraniums you'll ever find

Enormous heads of bloom with exceptional weather resistance make these giant geraniums stand out from the rest! Raised from cuttings, these plants have increased vigour and abundant flowers that persist throughout summer if deadheaded regularly. Fantastic for creating dramatic patio displays or filling gaps in borders. Height: 60cm (24"). Spread: 50cm (20").


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.
  • Collection comprises:
  • Geranium 'Octavia Hill' - Bold scarlet
  • Geranium 'Salmon Princess' - Delicate candy pink.
  • Geranium 'Sassa' - Dark pink.
  • Geranium 'Flower Fairy Berry' - Rich cerise pink.
  • Geranium 'Maestro Salmon' - Dark pink.
More info
    • 5 geranium jumbo plug plants - 1 of each variety

    • Despatch: By end of May 2016
    •  
    • £9.99
    • 15 geranium jumbo plug plants - 3 of each variety

    • Despatch: By end of May 2016
    •  
    • £19.99
    • 30 geranium jumbo plug plants

    • Despatch: By end of May 2016
    • SAVE £53.95  
    • £83.94 £29.99
    • 100 geranium jumbo plug plants - 20 of each variety

    • Despatch: By end of May 2016
    • SAVE £129.81  
    • £199.80 £69.99

Fuchsia 'White King'

The purest white blooms of any double-flowered variety, Fuchsia 'White King' is ideal for brightening shady corners where the pale blooms will seemingly glow in the dark! The huge 12cm (5") blooms on these trailing fuchsia plants are the perfect showy addition for hanging baskets and tall containers. Easy-care fuchsias thrive in sun or shade. Height and spread: 50cm (20in).

Useful links:

How to grow fuchsias


Culinary note: Add the beautiful coloured flowers to salads, crystallise them for a sweet garnish or add them to jellies for an extra splash of colour. For more details about edible flowers click here.

More info
    • 5 fuchsia Postiplug plants

    • Despatch: By end of May 2016
    •  
    • £9.99
    • 10 fuchsia Postiplug plants

    • Despatch: By end of May 2016
    •  
    • £14.99

Phlox Collection (Creeping)

Phlox subulata

 Customer Rating
  • Fragrant ground cover
Groundcover needn’t be dull! Carpet your garden in rich colour and keep the weeds at bay with our perennial creeping phlox collection. This hardy rockery plant has many uses – underplant trees, shrubs and tall perennials, soften path edging or cover awkward slopes and banks. If you’re tired of your lawn, why not replace it with a sea of seasonal colour. This collection comes into its own in March to May, bridging the colour gap between winter and summer bedding. Height: 15cm (6"). Spread: 50cm (20")..
  • Collection comprises:
  • Phlox subulata 'Candy Stripes'
  • Phlox subulata 'Snowflake'
  • Phlox subulata 'Red Wings'
  • Phlox subulata 'Drummonds Pink'
  • Phlox subulata 'Emerald Cushion'
More info
    • 5 phlox Postiplug plants

    • Despatch: By end of June 2016
    •  
    • £13.99
    • 10 phlox Postiplug plants

    • Despatch: By end of June 2016
    • SAVE £7.99  
    • £27.98 £19.99
    • 20 phlox Postiplug plants

    • Despatch: By end of June 2016
    • SAVE £30.97  
    • £55.96 £24.99
    • 50 phlox Postiplug plants

    • Despatch: By end of June 2016
    • SAVE £99.91  
    • £139.90 £39.99

Dianthus 'Blackjack'

Carnation

New modern cut-flower quality carnation plants packing the heavenly scent of antique varieties! Modern breeding work has seen the unmistakable scent of carnations all but disappear in the search for longer, cut flower-quality stems. Fortunately Carnation 'Blackjack' bucks that trend. Not only does it offer a unique colour combination, the near black blooms also bring punchy clove-like fragrance to the garden. A perfect border carnation, it also performs well in containers. Originally planned for the commercial cut flower market, you won't be disappointed by the endless supply of fresh stems either! Keep the colour and scent in the garden or use Dianthus 'Blackjack' as your very own cut flower carnation. Height and spread: 50cm (20").


Culinary note: Use the clove like tasting petals for adding to cakes, either for flavour or decorating, suitable for soups, salads and sauces too. For more details about edible flowers click here.

More info
    • 5 dianthus pencil plug plants

    • Despatch: By end of May 2016
    •  
    • £13.99
    • 10 dianthus pencil plug plants

    • Despatch: By end of May 2016
    • SAVE £7.99  
    • £27.98 £19.99

Meconopsis grandis 'Lingholm'

Himalayan Blue Poppy

 Customer Rating
A perennial wow factor for a difficult, damp shady corner. I just love the indescribable blue colour of Meconopsis blooms; once seen, never forgotten! This specially selected strain acts as a perennial too, lasting in the garden for many years. Height: 75cm (30"). Spread: 50cm (20").
More info
    • 2 meconopsis jumbo plug plants

    • Despatch: By end of May 2016
    •  
    • £12.99
    • 4 meconopsis jumbo plug plants

    • Despatch: By end of May 2016
    •  
    • £17.99

Giant Fragrant Cowslip

Primula florindae, Tibetan Cowslip

Stiff stems carry whorls of sulphur yellow, tubular, flowers with a delicate, sweet fragrance. Once established, Giant Cowslips will naturalise to form swathes of lush, mid green foliage that makes ideal groundcover for natural planting schemes. With an RHS AGM, Primula florindae makes a superb choice for a damp, shady corner where other plants won't grow. Height: 90cm (35"). Spread: 50cm (20").,

Culinary note: Some parts of these flowers are edible. Try the sweet tasting petals on top of salads or even pancakes, crystallise them for use as cake decorations too. For more details about edible flowers click here.

More info
    • 3 fragrant cowslip jumbo plug plants

    • Despatch: By end of May 2016
    •  
    • £12.99
    • 6 fragrant cowslip jumbo plug plants

    • Despatch: By end of May 2016
    • SAVE £7.99  
    • £25.98 £17.99

Geranium 'Octavia Hill'

Pelargonium, Zonal Geranium, Zonal Pelargonium

Enormous heads of scarlet blooms with exceptional weather resistance make these giant geraniums stand out from the rest! Raised from cuttings, Geranium 'Octavia Hill' has increased vigour and abundant flowers that persist throughout summer if deadheaded regularly. Fantastic for creating dramatic patio displays or filling gaps in borders. Height: 50cm (20"). Spread: 45cm (18").
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
    • 5 geranium jumbo plug plants

    • Despatch: By end of May 2016
    •  
    • £9.99

Geum 'Blazing Sunset'

Avens

 Customer Rating
Fully double, scarlet red Geum flowers rise above clumps of foliage on thin, wiry stems. Geum 'Blazing Sunset' adds a bright splash of colour to borders - the large flowers make a dazzling and unusual addition to cut flower arrangements too. These colourful hardy perennials are so easy to grow that we can't understand why they're not more commonly grown! Height and spread: 60cm (24").
More info
    • 6 geum plug plants

    • Despatch: By end of May 2016
    •  
    • £5.99

Meconopsis baileyi 'Alba'

Himalayan Poppy, Tibetan Poppy, Meconopsis betonicifolia

  • Glorious white Himalayan poppy
Rarely seen, this stunning white form of the Himalayan blue poppy is a real eye-catcher in late spring and early summer. Pure white, silky petals surround golden yellow stamens to form clear, single blooms up to 10cm (4") across. Forming a basal rosette of hairy leaves, Meconopsis baileyi 'Alba' thrives in cool, moist, shady borders and woodland gardens, making a stunning feature when planted en masse. This captivating short-lived perennial is a 'must have' in the garden! Height: 90cm (35"). Spread: 50cm (20").
More info
    • 2 meconopsis jumbo plug plants

    • Despatch: By end of May 2016
    •  
    • £12.99
    • 4 meconopsis jumbo plug plants

    • Despatch: By end of May 2016
    •  
    • £17.99

Lupin 'Russell Hybrids Mixed' (Large Plant)

Lupinus

Tall spires of tightly packed flowers rise above clumps of palmate foliage in a magical array of colours. This wonderful mix of the ever popular 'Russell Hybrids' is ideal for adding height and structure to the back of perennial borders and woodland edges. A distinctive hardy perennial that remains a cottage garden favourite. Height: 90cm (36"). Spread: 50cm (20").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 2 litre potted lupin plant

    • Despatch: By end of May 2016
    •  
    • £9.99
    • 2 x 2 litre potted lupin plants

    • Despatch: By end of May 2016
    • SAVE £2.99  
    • £19.98 £16.99

Poppy 'Royal Wedding' (Large Plant)

Papaver orientale, Oriental Poppy

The Oriental Poppy is perfect for cottage gardens, and are best planted together in clumps for the full effect. Poppy 'Royal Wedding' is the pick of the bunch, with glistening white petals and a dark centre to each bloom. Bees and butterflies love the nectar-rich flowers. Oriental Poppies are easy to grow, hardy perennial plants for a sunny border in the garden. Plants are clump-forming, tough and produce over-sized flowers in early summer each year, followed by attractive seedheads. Height: 60cm (24"). Spread: 50cm (20").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 8cm potted poppy plant

    • Despatch: By end of May 2016
    •  
    • £11.99
    • 2 x 8cm potted poppy plants

    • Despatch: By end of May 2016
    •  
    • £19.99

Meconopsis Duo

Himalayan Blue Poppy, Tibetan Poppy

These stunning Himalayan poppies are a 'must have' in the garden! Silky petals in shades of white or blue surround golden yellow stamens to form clear, single blooms up to 10cm (4") across. Forming a basal rosette of hairy leaves, Meconopsis makes a captivating feature planted en masse in woodland gardens and moist, shady borders.


  • Collection comprises 4 jumbo plugs each of:
  • Meconopsis 'Lingholm' - A captivating short-lived perennial bearing spectacular, single clear blue poppy flowers, up to 10cm (4") across. Incredibly popular, this Himalayan blue poppy is ideal for moist shady borders. Height: 75cm (30"). Spread: 50cm (20").
  • Meconopsis baileyi 'Alba' - Rarely seen, this stunning white form of the Himalayan blue poppy is a real eye-catcher in late spring and early summer. Although often short-lived, this Meconopsis makes a stunning feature when planted en masse. Height: 90cm (35"). Spread: 50cm (20").
More info
    • 8 meconopsis jumbo plugs - 4 of each variety

    • Despatch: By end of May 2016
    • SAVE £8.99  
    • £33.98 £24.99