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 111 products.
 

Osteospermum 'Blue Eyed Beauty'

African Daisy, Cape Daisy

  • The most rewarding plant for the least effort

Buttery yellow blooms with a contrasting blue eye smother this stocky little African Daisy from June to September. This early flowering variety has a compact, branching habit that is perfect for filling beds and containers, or edging sunny borders. Like all Cape Daisies, Osteospermum 'Blue Eyed Beauty' thrives in hot and sunny conditions, performing beautifully, even in difficult dry soils. Height and spread: 40cm (16").

More info
    • 5 osteospermum Postiplug plants

    • Despatch: By end of April 2016
    •  
    • £9.99
    • 10 osteospermum Postiplug plants

    • Despatch: By end of April 2016
    • SAVE £4.99  
    • £19.98 £14.99

Phlox Collection (Creeping)

Phlox subulata, 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 subulata 'Snowflake'
  • Phlox subulata 'Red Wings'
  • Phlox subulata 'Drummonds Pink'
  • Phlox subulata 'Emerald Cushion'
More info
    • 5 phlox Postiplug plants

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

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

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

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

Lavender 'Hidcote'

Lavandula angustifolia, English Lavender

With its compact habit and dark purple flower spikes, this must be one of the nation's best known varieties of English lavender. The fragrant stems of Lavandula 'Hidcote' are ideal for cutting or drying, and the nectar-rich flowers are particularly attractive to bees. Lavender makes an excellent low hedge or path edging where the perfume can be appreciated as you brush past the aromatic evergreen foliage. Height: 60cm (24"). Spread: 75cm (30").

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

More info
    • 6 lavander plug plants

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

Gentiana scabra 'Royal Stripes'

  • Unique striped blooms
You'll be familiar with blue flowering gentian plants and you've likely seen white flowered forms, but you'll be blown away by the blue and white striped flowers of Gentiana 'Royal Stripes'. This rare new variety really brings a wow factor to the genus. Look closer at the impressive blooms and you'll also see vibrant green freckling standing out on a white canvas. Whether you use these compact herbaceous perennial plants in patio pots, borders or rockery displays, the carpet of colour is sure to attract attention from friends and family as well as bees and other pollinators. In return of a little deadheading, flowers will just keep on coming from early June through to October. Ideal for dappled shade, try Gentiana ‘Royal Stripes’ under trees and shrubs for a vibrant lift to your beds and borders. Height and spread: 25cm (10")
More info
    • 1 x 10.5cm potted gentiana plant

    • Despatch: By end of May 2016
    •  
    • £14.99
    • 2 x 10.5cm potted gentiana plants

    • Despatch: By end of May 2016
    • SAVE £4.99  
    • £29.98 £24.99

Eryngium planum 'Blue Hobbit' (Large Plant)

Sea Holly, Blue Eryngo

Eryngium are handy little plants for the border, as they'll grow in many different types of soil, and the flower power of Eryngium 'Little Hobbit' is second to none!

Eryngium 'Blue Hobbit' is a unique, dwarf Eryngium, which can be grown in a patio pot. The 30cm (12") plants become top-heavy in midsummer, with sprays of nearly 100 inky-blue flowers. Height and Spread: 30cm (12").

More info
    • 1 x 1 litre potted eryngium plant

    • Despatch: By end of February 2016
    •  
    • £9.99
    • 2 x 1 litre potted eryngium plants

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

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"). More info
    • 1 x 2 litre potted lupin plant

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

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

Red Hot Poker 'Fire Dance' (Large Plant)

Kniphofia, Torch Lily

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"). More info
    • 1 x 1 litre potted red hot poker plant

    • Despatch: By end of February 2016
    •  
    • £12.99
    • 2 x 1 litre potted red hot poker plants

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

Geum 'Totally Tangerine' (Large Plant)

Avens

Gorgeous pale orange blooms rise above clumps of foliage on thin, wiry stems. This free-flowering Geum is a tough and reliable addition to perennial borders where it will bloom non-stop from early summer right through until early autumn. The warm orange blooms of Geum 'Totally Tangerine' also make fantastic cut flowers for a vase indoors. Height: 60cm (24"). Spread: 45cm (18"). More info
    • 1 x 1 litre potted geum plant

    • Despatch: By end of February 2016
    •  
    • £12.99
    • 2 x 1 litre potted geum plants

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

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"). More info
    • 1 x 3 litre potted kniphofia plant

    • Despatch: By end of February 2016
    •  
    • £12.99
    • 2 x 3 litre potted kniphofia plants

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

Pennisetum 'Blackjack'

Fountain Grass

  • Add texture and movement to your garden
  • A real designer's plant

Ornamental grasses add an architectural element to planting schemes, while their airy foliage adds movement as it catches the breeze. Pennisetum 'Blackjack' went down a storm in our summer trial garden! The shimmering, deep purple stems go on to produce black feathery plumes throughout the summer. The fluffy seedheads can be cut to make elegant dried flowers or left on the plants to give garden birds a seasonal treat. Add these pennisetum plants to beds, borders and containers to get the designer’s look in your garden this season. Height: 1.2m (4'). Spread: 45cm (18")
More info
    • 5 Postiplug plants

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

    • Despatch: By end of April 2016
    • SAVE £4.99  
    • £19.98 £14.99

Iris 'Re-Blooming Collection'

Bearded Iris

 Customer Rating

A beautiful selection of hardy, drought tolerant bearded iris with exceptional disease and insect resistance. With the first flowers appearing in spring, and a second flush in autumn, these really are outstanding hardy perennials; perfect for summer borders. These majestic, tall bearded iris flowers have a delicate scent and make impressive cut flowers for a vase indoors. Height: 90cm (36"). Spread: 30cm (12").


  • Collection comprises:
  • Iris 'Orange Harvest' - Rust orange flowers.
  • Iris 'Victoria Falls' - Light blue iris flowers.
  • Iris 'Cantina' - Violet blooms.
  • Iris 'Buckwheat' - Golden yellow petals.
  • Iris 'Pass the Wine' - Wine red flowers.
More info
    • 5 Iris rhizomes - 1 of each variety

    • Despatch: By end of February 2016
    •  
    • £14.99
    • 10 Iris rhizomes - 2 of each variety

    • Despatch: By end of February 2016
    •  
    • £24.99

Iris 'Pass the Wine' (Re-Blooming)

Bearded Iris

Iris 'Pass the Wine' produces sumptuous burgundy blooms with a rich, velvety appearance. With the first flowers appearing in late spring and continuing into summer, these really are outstanding hardy perennials. These majestic bearded iris flowers also make impressive cut flowers for a vase indoors. Height: 90cm (36"). Spread: 40cm (16"). More info
    • 1 Iris rhizome

    • Despatch: By end of February 2016
    •  
    • £7.99