Thompson & Morgan

Important delivery notice
The products on this site are only delivered to UK addresses. If you require delivery to another country please visit one of our other sites below.

Refine Results

Refine by..

Email Newsletter

Sign up to our newsletter

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 77 products.
 

Shasta Daisy 'Goldfinch' (Large Plant)

Leucanthemum × superbum, Chrysanthemum maximum, Shasta Daisy

This exciting modern cultivar is the most yellow Leucanthemum to date. The semi double blooms of Shasta Daisy 'Goldfinch' open a bright lemon colour that slowly fades to pale ivory as the blooms age. This compact variety is well branched and bushy, flowering for weeks from late spring onwards and attracting bees and butterflies to its nectar rich blooms. This reliable hardy perennial is undemanding and easy to grow in borders and wildlife areas. It also makes a lovely cut flower. Height and spread: 60cm (24").

 

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

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

    • Despatch: Within 28 days
    •  
    • £19.99

Polyanthus 'Firecracker' (Garden Ready)

Primula

  • The fast-track to a hassle-free garden - just plant, water and enjoy!
  • Quality plants delivered to your door, hardened off and ready to plant out
  • Fully-grown, super-robust, healthy plants

Our garden ready plants are selected for garden performance, straight from the nursery. We send them to you 'green' ahead of flowering (but please note some varieties may show a few blooms), which means plants will establish quickly and all their energy goes into producing better roots, so they produce more flowers throughout the season.


An eye-catching new Polyanthus bearing yellow blooms with a fiery orange-red edge. These long-lasting flowers are borne on strong, stout stems above rosettes of semi-evergreen foliage. Versatile and easy to grow, Polyanthus 'Firecracker' is perfect for edging borders and brightening up spring patio containers. Height and spread: 23cm (9").


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.

 

Garden ready special offer
More info
    • 30 polyanthus garden ready plants

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

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

Polyanthus 'Firecracker'

Primula

 Customer Rating
An eye-catching new Polyanthus bearing yellow blooms with a fiery orange-red edge. These long-lasting flowers are borne on strong, stout stems above rosettes of semi-evergreen foliage. Versatile and easy to grow, Polyanthus 'Firecracker' is perfect for edging borders and brightening up spring patio containers. Height and spread: 23cm (9").

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.

 

Buy this variety in a larger plant size
More info
    • 12 polyanthus plug plants

    • Despatch: By end of October 2016
    •  
    • £9.99 £7.99
    • 24 polyanthus plug plants

    • Despatch: By end of October 2016
    • SAVE £5.99  
    • £15.98 £9.99
    • 48 polyanthus plug plants

    • Despatch: By end of October 2016
    • SAVE* £18.97  
    • £31.96 £12.99

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

Coreopsis 'Full Moon' (Large Plant)

Large, buttery-yellow daisy flowers appear above a low mound of finely cut foliage from July to September. Instead of setting seed, Coreopsis 'Full Moon' puts all of its energy into flowering over a long period, so you can be sure of a great display throughout the summer. This easy to grow, hardy perennial forms well branched plants that will happily fill gaps in sunny borders or patio containers. A good cut flower and a great addition to wildlife areas for its nectar rich blooms. Height and spread: 60cm (24").

 

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

    • Despatch: Within 28 days
    •  
    • £7.99
    • 2 x 1 litre potted coreopsis plants

    • Despatch: Within 28 days
    •  
    • £12.99

Agastache 'Summer Glow' (Large Plant)

This fantastic perennial is one of the best slug-proof plants for your garden. Slugs and snails dislike the felted, minty-fragranced foliage, so plants are left completely untouched.

Agastache are compact, evergreen plants, with colour-changing flowers, which are loved by bees and butterflies. Agastache plants are also very drought tolerant, and are can be grown in the border or patio pots. Height: 60cm (24"). Spread: 45cm (18").


Culinary note: Add both flowers and leaves to cakes or whipping cream for a hint of anise flavour. 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 agastache plant

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

    • Despatch: Within 28 days
    •  
    • £16.99

Inula orientalis (Large Plant)

Intriguing woolly buds reveal bold orange daisy-like blooms throughout the summer which are loved by pollinating insects. This hardy perennial makes a superb filler, with just one plant forming a reasonable clump on its own. Inula orientalis makes a cheerful addition to perennial and mixed borders. Try cutting a few of the blooms brighten up a vase indoors. Height: 90cm (36"). Spread: 60cm (24").

 

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

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

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

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

Primrose 'Elizabeth'

Primula

  • A different display every day!
  • Colour-Changing blooms
  • Watch the frills unfurl

A primrose with a difference. You'll be amazed at the colour changing blooms of spring-flowering Primrose 'Elizabeth', each bloom looks different day by day as they work through a myriad of yellow and pink shades. It's a shape changer too! Young blooms start our frilly, with petals straightening out as they mature. Looks lovely in spring table top planters and adds a touch of elegance to spring bedding displays in the border. Height: 20cm (8"). Spread: 15cm (6").
More info
    • 24 primrose plug plants

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 48 primrose plug plants

    • Despatch:
    • SAVE £4.99  
    • £14.99
    • Out of stock

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