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.


For beautiful summer flowers browse our range of annual plants.



We have found 10 products.
 

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 September 2016
    •  
    • £9.99
    • 2 x 1 litre potted kniphofia plants

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

Red Hot Poker 'Lemon Popsicle' (Large Plant)

Kniphofia

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 3 litre potted kniphofia plant

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

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

    • Despatch: By end of August 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: By end of September 2016
    •  
    • £7.99
    • 1 x 2 litre potted salvia plant

    • Despatch: By end of September 2016
    •  
    • £11.99
    • 2 x 1 litre potted salvia plants

    • Despatch: By end of September 2016
    •  
    • £12.99
    • 2 x 2 litre potted salvia plants

    • Despatch: By end of September 2016
    •  
    • £18.99

Physalis alkekengi var. franchetii (Large Plant)

Chinese Lantern

Physalis alkekengi var. franchetii is better known by its culinary name of Cape Gooseberry. Tiny, creamy-white flowers appear in midsummer above oval green foliage. This hardy perennial is mainly grown for its edible berries which later develop within red, papery Chinese Lantern calyces. This vibrant autumn display brings a bright splash of colour to fading perennial borders. The stems can be cut to create wonderful decorative flower arrangements. If left on the plant the calyces will slowly skeletonize, adding ornate winter interest to your garden. Height: 75cm (30"). Spread: 90cm (36").

 

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

    • Despatch: By end of August 2016
    •  
    • £9.99
    • 2 x 1 litre potted physalis plants

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

Euphorbia characias 'Black Pearl' (Large Plant)

Milkweed, Spurge

A unique plant which gives all year round interest! Euphorbia are fully hardy, and will tolerate dry, sunny borders and periods of drought. Plants are evergreen and architectural, and possibly offer the longest flowering period of any garden plant. The unique black and green flowers of Euphorbia characias 'Black Pearl' are full of sweet nectar, and open in spring, and stay in place until the first frosts. Euphorbia will thrive in dry gardens, Mediterranean-style plantings and large patio pots. Height and Spread: 60cm (24").

 

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

    • Despatch: By end of September 2016
    •  
    • £7.99
    • 2 x 1 litre potted euphorbia plants

    • Despatch: By end of September 2016
    •  
    • £12.99

Euphorbia x martini 'Ascot Rainbow' (Large Plant)

Milkweed, Spurge

Evergreen blue-grey leaves edged with bright gold margins make a colourful display throughout the year. The vibrant foliage of Euphorbia x martinii 'Ascot Rainbow' takes on an attractive rosy pink tinge during colder weather and shows superb winter hardiness. In spring, this showy Spurge bears chartreuse green flowers towards the tip of each stem, each with a dark contrasting eye. This striking perennial makes a lovely addition to sunny borders, and once established, is particularly drought tolerant. Height and spread: 50cm (20").

 

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

    • Despatch: By end of August 2016
    •  
    • £13.99
    • 2 x 2 litre potted euphorbia plants

    • Despatch: By end of August 2016
    •  
    • £21.99

Red Hot Poker 'Mango Popsicle' (Large Plant)

Kniphofia, Torch Lily

Specially bred for a compact dwarf habit and terrific bright colour! Red Hot Poker 'Mango Popsicle' is a fabulous evergreen perennial that will certainly make its presence felt in herbaceous borders. Vibrant orange flower spikes rise above attractive grassy foliage from June right through to October. Like all Kniphofia, it is resilient and surprisingly drought tolerant, needing virtually no maintenance. Height: 35cm (14"). Spread: 40cm (16").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 3 litre potted kniphofia plant

    • Despatch:
    •  
    • £12.99
    • Out of stock
    • 2 x 3 litre potted kniphofia plants

    • Despatch:
    •  
    • £19.99
    • Out of stock

Red Hot Poker 'Papaya Popsicle' (Large Plant)

Kniphofia, Torch Lily

Part of the 'Popsicle Series', this exotic looking Kniphofia produces its orange and yellow flower spikes over a particularly long period. From June to October the prolific blooms rise above clumps of evergreen grassy foliage. Red Hot Poker 'Papaya Popsicle' is a compact dwarf variety that will easily fit into the smallest borders. Kniphofia are reliable perennials with a tough disposition and good drought resistance. Height: 35cm (14"). Spread: 40cm (16").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 3 litre potted kniphofia plant

    • Despatch:
    •  
    • £12.99
    • Out of stock
    • 2 x 3 litre potted kniphofia plants

    • Despatch:
    •  
    • £19.99
    • Out of stock

Potted Plant Collection

Acer, Canna, Lilac, Eryingium

Our potted plant collection has something for almost every spot in the garden. Colourful Acers will brighten dappled shady spots with their vibrant autumn colours, while the Canna will bring an exotic feel to damp borders and pond edges. Eryingium is perfect for filling a gap in a sunny border. These quality plants are all supplied in pots ready to be planted out now. (Canna's are best grown on in frost free conditions over winter before planting out in spring).

  • Collection includes:
  • Canna 'Tropicanna Gold' - Luxuriant large leaves streaked with gold make a magnificent feature even before the tangering coloured flowers appear.
  • Syringa 'Dwarf Pink' - From early summer, a profusion of frothy pink blooms will smother this pretty dwarf lilac.
  • Acer palamatum 'Osakazuki Seedling' - This striking Japanese Maple is well regarded for its intense autumn colours.
  • Acer palmatum 'Atropurpureum' - A classic Japanese Maple producing gorgeous, purple-red foliage that colours to brilliant, fiery red in autumn.
  • Eryngium 'Neptune's Gold' - This unique specimen still retains the iconic blue flower tones of Eryngium, but also takes on a stunning golden sheen.
More info
    • 5 potted plants - 1 of each variety

    • Despatch:
    •  
    • £50.00
    • Out of stock