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 67 products.
 

Daylily 'Stella in Red' (Large Plant)

Hemerocallis

They always say daylilies are un-killable, and we think that's quite accurate; plants are hardy, very tough, will grow in most positions, producing lily-like flowers. Daylily 'Stella in Red' has ruby-red, gently fragrant flowers, which last a day each, but are borne on compact, grassy plants all through the summer. Plant up Hemerocallis plants into mixed garden borders or large pots. Daylilies are ideal for beginners and smaller gardens, are rabbit resistant, and last many years. Height: 30cm (12") and Spread: 45cm (18").

Culinary note: Try day lily petals in salads, soups or cooked and served as a vegetable. For more details about edible flowers click here.

 

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

    • Despatch: Within 28 days
    •  
    • £9.99
    • 2 x 1 litre potted Daylily plants

    • Despatch: Within 28 days
    •  
    • £16.99

Blechnum brasiliense 'Volcano'

Dwarf Brazilian Tree Fern, Hard Fern

 Customer Rating
  • Hardy down to -5c in the UK
Are Dicksonia tree ferns too large or expensive for you? We've found the answer - try the dwarf Brazilian tree fern instead! Blechnum brasiliensis 'Volcano' is an exciting new find for the home gardener, only recently introduced to the UK, but sure to be the next big thing! Compact plants lend themselves well to growing in patio pots; and throw up huge fronds up to 70cm (28") tall. The young fronds unfurl in a bronze volcanic hue turning a shiny green as they open. Over time, this fern will form a small trunk, growing to around 30cm tall in 10 years. A relative of our native Deer Fern, this fern thrives in low light, so it's perfect for giving an exotic touch to your home and garden. Despite its tropical origins, Blechnum brasiliense is hardy enough to be grown in most UK gardens, tolerating temperatures down to -5C (23F) but will appreciate a sheltered spot and some winter protection. Height: 90cm (36"). Spread: 70cm (28").
More info
    • 1 x 9cm potted blechnum plant

    • Despatch: By end of July 2017
    •  
    • £14.99
    • 2 x 9cm potted blechnum plants

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

Red Hot Poker 'Fire Dance' (Large Plant)

Kniphofia

The Red Hot Poker is instantly recognisable. This reliable perennial is an old favourite for mixed herbaceous borders. Kniphofia 'Fire Dance' is a particularly useful selection, as it's extremely cold hardy. The scarlet and yellow blooms rise above dense clumps of evergreen foliage in summer.Plants also prove remarkably rabbit proof and these robust plants are loved by bees and butterflies too. Height: 50cm (20") Spread: 60cm (24").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 1 litre potted red hot poker plant

    • Despatch: Within 28 days
    •  
    • £12.99
    • 2 x 1 litre potted red hot poker plants

    • Despatch: Within 28 days
    •  
    • £19.99

Lobelia cardinalis 'Queen Victoria' (Large Plant)

Cardinal Flower, Lobelia fulgens, Lobelia splendens

Tall spikes of deep maroon foliage topped by glowing scarlet blooms bring a welcome splash of late summer colour, when many flowers have already faded. This exotic looking, short lived perennial is ideal for filling gaps in damp borders, and looks spectacular planted beside ponds and streams. Height: 90cm (36"). Spread: 30cm (12").

 

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

    • Despatch: By end of November 2016
    •  
    • £9.99
    • 1 x 2 litre potted lobelia plant

    • Despatch: Within 28 days
    •  
    • £12.99
    • 2 x 1 litre potted lobelia plants

    • Despatch: By end of November 2016
    •  
    • £14.99
    • 2 x 2 litre potted lobelia plants

    • Despatch: Within 28 days
    •  
    • £19.99

Salvia x jamensis 'Hot Lips' (Large Plant)

Salvia microphylla 'Hot Lips'

Spice up your summer patio pots with Salvia 'Hot Lips'. Naturally bushy plants boast eye-catching flower spikes with open-mouthed, bicolour blooms. In particularly hot weather look out for individual flowers in solid red or solid white. The aromatic foliage has a fine blackcurrant fragrance that only adds to its charm. This showy ornamental sage is perfect for cottage garden borders and containers, or incorporated into bedding schemes for a vibrant summer display. Although perennial, this half hardy Salvia will appreciate some protection from winter weather. Height: 90cm (35"). Spread: 60cm (24").

 

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

    • Despatch: Within 28 days
    •  
    • £9.99
    • 2 x 2 litre potted salvia plants

    • Despatch: Within 28 days
    •  
    • £16.99

Ligularia dentata 'Midnight Lady' (Large Plant)

Are you looking for a statement plant for your border? Ligularia dentata 'Midnight Lady' is the perfect choice. Giant, architectural foliage in deep bronze, with golden-orange daisy flowers on dark stems.

Ligularia plants can be grown in reliably moist soil, making them ideal for those damp, shady corners and spectacular waterside plants. Ligularia are deer and rabbit resistant, yet adored by bees and butterflies. Height: 1m (39"). Spread: 75cm (30").

 

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

    • Despatch: Within 28 days
    •  
    • £9.99
    • 2 x 1 litre potted ligularia plants

    • Despatch: Within 28 days
    •  
    • £16.99

Gunnera manicata (Large Plant)

Chilean Rhubarb

Gunnera is the 'big daddy' of the gardening world. The giant evergreen leaves can reach 1-2 metres across, and will add the wow factor to any garden, although isn't necessarily suitable for smaller gardens!

Also affectionately known as Giant Rhubarb, Gunnera is robust, spectacular and architectural. They make great specimen plants bog gardens and waterlogged spots, the reflection in water is especially beautiful. Gunnera manicata holds an RHS Award of Garden Merit too. Height: 2.5m (8') Spread: 4m (13').

 

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

    • Despatch: By end of March 2017
    •  
    • £9.99
    • 1 x 18 litre potted gunnera plant

    • Despatch:
    •  
    • £52.99
    • Out of stock
    • 1 x 5 litre potted gunnera plant

    • Despatch: Within 28 days
    •  
    • £23.99
    • 2 x 1 litre potted gunnera plants

    • Despatch: By end of March 2017
    •  
    • £16.99
    • 2 x 18 litre potted gunnera plants

    • Despatch:
    •  
    • £79.99
    • Out of stock
    • 2 x 5 litre potted gunnera plants

    • Despatch: Within 28 days
    •  
    • £35.99

Red Hot Poker 'Traffic Lights' (Large Plant)

Kniphofia uvaria

The playful colours of this dwarf red-hot poker are sure to stop you on your tracks! Unusual red, amber and green torch-like flower spikes are carried on sturdy stems above evergreen strappy foliage. This tough and reliable perennial is perfect for low maintenance borders and makes an impressive cut flower too! Height and Spread: 45cm (18").

 

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

    • Despatch: By end of November 2016
    •  
    • £9.99
    • 2 x 1 litre potted kniphofia plants

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

Red Hot Poker 'Lemon Popsicle' (Large Plant)

Kniphofia, Torch Lily

From the new 'Popsicle series', this lovely little perennial bears upright spikes of bright yellow flowers from June right through to October. Red Hot Poker 'Lemon Popsicle' is specially bred for a dwarf habit, attractive grassy foliage and high impact colour. This compact evergreen has a long flowering period making it a worthy choice for year round interest in even the smallest of gardens. Like all kniphofia, it is resilient, low maintenance and easy to grow. Height: 35cm (14"). Spread: 40cm (16").

 

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

    • Despatch: Within 28 days
    •  
    • £12.99
    • 2 x 2 litre potted kniphofia plants

    • Despatch: Within 28 days
    •  
    • £19.99

Euphorbia 'Ascot Rainbow'

Euphorbia x martini, Spurge

  • Ideal for difficult dry gardens
  • Year-round interest
  • Vivid spring flowerheads

It's hard to convey the myriad of colour changes this showy foliage plant goes through each season. Here goes! The strap-like stripy leaves emerge with an intense pink flush, maturing to grey-green with yellow margins and red markings. The plants also take on a pink tinge during the coldest parts of winter. This is all topped off in spring with a display of billowing flowerheads in vivid shades of green, yellow, cream and red. Height and spread: 90cm (36").
More info
    • 1 euphorbia jumbo plug plant

    • Despatch: By end of October 2016
    •  
    • £9.99
    • 3 euphorbia jumbo plug plants

    • Despatch: By end of October 2016
    • SAVE* £12.99  
    • £16.99

Salvia 'Amistad' (Large Plant)

Sage

Salvia 'Amistad' is an exceptionally beautiful new variety. Exquisite rich purple flowers are carried on tall, near-black stems above a mound of lush green foliage. With regular deadheading, this magnificent hardy perennial can bloom almost continuously from May right through to October, attracting a host of bees and butterflies throughout the season. Ornamental Sage has long been a stalwart of cottage garden borders, and this one is no exception. Perfect for exotic planting schemes and wildlife gardens too. Height: 120cm (48"). Spread: 50cm (20").

 

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

    • Despatch: Within 28 days
    •  
    • £7.99
    • 1 x 2 litre potted salvia plant

    • Despatch: Within 28 days
    •  
    • £11.99
    • 2 x 1 litre potted salvia plants

    • Despatch: Within 28 days
    •  
    • £12.99
    • 2 x 2 litre potted salvia plants

    • Despatch: Within 28 days
    •  
    • £18.99

Jasminum beesianum

Jasmine

Delicate pink trumpets with a heavenly scent erupt into bloom from midsummer. The twining stems are clothed in glossy, semi evergreen foliage that makes the perfect backdrop for its shiny, black winter berries. Jasmine beesianum flowers have a lighter, more delicate perfume than common Jasmine making it perfect for growing over a doorway or seating area where it can be fully appreciated. A quick growing climber for a long season of interest! Height and spread: 200cm (79"). More info
    • 1 x 7cm potted Jasminum plant

    • Despatch: By end of October 2016
    •  
    • £12.99
    • 3 x 7cm potted Jasminum plants

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