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 8 products.
 

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"). More info
    • 1 x 1 litre potted salvia plant

    • Despatch: By end of September 2015
    •  
    • £7.99
    • 1 x 2 litre potted salvia plant

    • Despatch: By end of September 2015
    •  
    • £11.99
    • 2 x 1 litre potted salvia plants

    • Despatch: By end of September 2015
    •  
    • £12.99
    • 2 x 2 litre potted salvia plants

    • Despatch: By end of September 2015
    •  
    • £18.99

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"). More info
    • 1 x 1 litre potted euphorbia plant

    • Despatch: By end of September 2015
    •  
    • £7.99
    • 2 x 1 litre potted euphorbia plants

    • Despatch: By end of September 2015
    •  
    • £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"). More info
    • 1 x 2 litre potted euphorbia plant

    • Despatch: By end of September 2015
    •  
    • £13.99
    • 2 x 2 litre potted euphorbia plants

    • Despatch: By end of September 2015
    •  
    • £21.99

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 September 2015
    •  
    • £12.99
    • 2 x 3 litre potted kniphofia plants

    • Despatch: By end of September 2015
    •  
    • £19.99

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

    • Despatch: By end of September 2015
    •  
    • £12.99
    • 2 x 3 litre potted kniphofia plants

    • Despatch: By end of September 2015
    •  
    • £19.99

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

    • Despatch: By end of September 2015
    •  
    • £12.99
    • 2 x 3 litre potted kniphofia plants

    • Despatch: By end of September 2015
    •  
    • £19.99

Red Hot Poker 'Traffic Lights' (Large Plant)

Kniphofia uvaria, Torch Lily

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

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 2 x 1 litre potted kniphofia plants

    • Despatch: By end of September 2015
    •  
    • £14.99

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"). More info
    • 1 x 1 litre potted physalis plant

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

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