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 15 products.
 

Phlox Collection (Creeping)

Phlox subulata, Phlox douglasii, 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 douglassi 'Red Admiral'
  • Phlox subulata 'Fort Hill'
  • Phlox subulata 'Scarlet Flame'
  • Phlox subulata 'Emerald Cushion Blue'
More info
    • 5 phlox Postiplug plants

    • Despatch: By end of August 2015
    •  
    • £11.99
    • 10 phlox Postiplug plants

    • Despatch: By end of August 2015
    • SAVE £5.99  
    • £23.98 £17.99

Polemonium reptans 'Stairway to Heaven' (Large Plant)

Jacobs Ladder

An attractive cultivar of a cottage garden favourite. Clumps of delicate variegated foliage play host to stems of pretty light blue flowers in April and May. The cream edged leaves of Polemonium reptans 'Stairway to Heaven' are heat tolerant and develop a lovely pink tinge when grown in full sun. Jacobs Ladder is a versatile hardy perennial that needs little maintenance and makes a pleasing companion for Hostas in shadier positions. Height: 40cm (16"). Spread: 45cm (18"). More info
    • 1 x 1 litre potted polemonium plant

    • Despatch: By end of August 2015
    •  
    • £7.99
    • 1 x 3 litre potted polemonium plant

    • Despatch: By end of August 2015
    •  
    • £12.99
    • 2 x 1 litre potted polemonium plants

    • Despatch: By end of August 2015
    •  
    • £12.99
    • 2 x 3 litre potted polemonium plants

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

Phlox douglasii 'Red Admiral' (Large Plant)

Moss Phlox

Phlox 'Red Admiral' is perfect for rockeries, the front of border or patio containers, and looks fantastic alongside spring bulbs. Also known as the Moss Phlox, this hardy perennial creates a low cushion of weed-suppressing foliage and, in spring, luminous displays of red flowers. Plants are vigorous, disease resistant, and stay compact, yet full of bloom! Phlox 'Red Admiral' also holds an RHS Award of Garden Merit. Height: 15cm (6"). Spread: 30cm (12").

More info
    • 1 x 1 litre potted phlox plant

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

    • Despatch: By end of September 2015
    •  
    • £16.99

Lamium maculatum 'Pink Pewter' (Large Plant)

Dead Nettle

Lamium maculatum 'Pink Pewter' is a tough and resilient hardy perennial, thriving in shade on almost any soil. This vigorous dead nettle will form a carpet of sparkling silver foliage with deep green margins. From April through to midsummer the clusters of salmon pink flowers provide a rich supply of nectar for pollinating insects. A first-class ground cover plant for a shaded spot - perfect for creeping through woodlands, wildlife gardens, rockeries or borders. Height: 10cm (8"). Spread: 60cm (24"). More info
    • 1 x 1 litre potted lamium plant

    • Despatch: By end of August 2015
    •  
    • £7.99
    • 2 x 1 litre potted lamium plants

    • Despatch: By end of August 2015
    •  
    • £12.99

Geum 'Banana Daiquiri' (Cocktails series) (Large Plant)

Avens

The refreshing, lemon yellow flowers of Geum 'Banana Daiquiri' are borne above neat clumps of semi evergreen foliage in late spring. Carried on fuzzy stems, each bloom is semi double with a whirl of yellow anthers at its centre. This neat little Avens makes a useful hardy perennial for the front of borders. Take a few of the blooms for a late spring posy - they make great cut flowers! Height: 45cm (18").Spread: 35cm (14"). More info
    • 1 x 1 litre potted geum plant

    • Despatch: By end of August 2015
    •  
    • £7.99
    • 1 x 2 litre potted geum plant

    • Despatch: By end of August 2015
    •  
    • £12.99
    • 2 x 1 litre potted geum plants

    • Despatch: By end of August 2015
    •  
    • £12.99
    • 2 x 2 litre potted geum plants

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

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 August 2015
    •  
    • £7.99
    • 2 x 1 litre potted euphorbia plants

    • Despatch: By end of August 2015
    •  
    • £12.99

Bergenia 'Dragonfly Sakura' (Large Plant)

Elephant's Ears

Reliable evergreen ground cover with astonishing winter colour! The glossy, rounded foliage of Bergenia 'Dragonfly Sakura' turns from lush green to rich purple-black throughout the coldest months. From March, the dark foliage is the perfect backdrop for the candy pink flowers that rise above it. The pretty blooms provide invaluable food for pollinating insects early in the year, and make dainty cut flowers too. Elephant Ears is a reliable, no maintenance hardy perennial Ð perfect for the front of cottage garden borders. Height: 25cm (10"). Spread: 30cm (12"). More info
    • 1 x 2 litre potted bergenia plant

    • Despatch: By end of August 2015
    •  
    • £12.99
    • 2 x 2 litre potted bergenia plants

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

Bergenia 'Pink Dragonfly' (Large Plant)

Elephant's Ears

This cottage garden favourite is regaining popularity for its glossy evergreen foliage and bright-pink spring blooms. Bergenia 'Pink Dragonfly' flowers mostly in spring, but also produces extra flushes into midsummer. The narrow foliage of this variety remains green throughout the growing season before taking on tones of plum-red during the winter months. A superb perennial for the front of borders, and a useful addition to wildlife gardens where its nectar rich blooms will attract pollinating insects. Height: 25cm (10"). Spread: 30cm (12"). More info
    • 1 x 2 litre potted bergenia plant

    • Despatch: By end of August 2015
    •  
    • £12.99
    • 2 x 2 litre potted bergenia plants

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

Euphorbia Duo

Euphorbia characias, Euphorbia x martinii, Milkweed, Spurge

These hardy perennials are well known for their drought tolerance once established, and make superb evergreen specimens for sunny borders. Our Euphorbia Duo combines two fabulous varieties, each with different variegated foliage that will bring year round colour to your garden.

  • Collection comprises:
  • Euphorbia x martinii 'Ascot Rainbow' - Blue-grey leaves edged with bright gold margins that take on an attractive rosy pink tinge during colder weather.
  • Euphorbia characias 'Glacier Blue' - Smokey blue-green foliage edged with contrasting cream margins makes a fabulous evergreen display.
More info
    • 4 euphorbia jumbo plug plants - 2 of each variety

    • Despatch:
    •  
    • £14.99
    • Out of stock

Soldanella montana

Snowbell, Mountain Tassel

Nodding spring blooms, with fringed pale blue petals are carried on upright stems like little parasols. The unusual flowers of Soldanella montana rise above clumps of rounded, leathery green foliage that remains evergreen. Commonly known as the Snowbell, this delightful and rarely seen hardy perennial makes a unique feature in the rockery or planted in alpine troughs.Height and spread: 20cm (8"). More info
    • 1 x 9cm potted soldanella montana plant

    • Despatch: By end of September 2015
    •  
    • £14.99
    • 2 x 9cm potted soldanella montana plants

    • Despatch: By end of September 2015
    • SAVE £9.99  
    • £29.98 £19.99

Phlox douglasii 'White Admiral' (Large Plant)

Moss Phlox

Phlox douglasii 'White Admiral' is a fantastic, carpeting plants, which creates a low cushion of weed-suppressing foliage. During the spring, this is smothered in white flowers.

Moss Phlox plants are vigorous, pest and disease free, and perfect for rockeries, the front of border or patio containers. Plant up some spring patio pots with Moss Phlox, mixed with spring bulbs. Height: 15cm (6"). Spread: 30cm (12").

More info
    • 1 x 1 litre potted phlox plant

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

    • Despatch: By end of September 2015
    •  
    • £16.99

Bergenia 'Dragonfly Angel Kiss' (Large Plant)

Elephant's Ears

A lovely cultivar of a cottage garden favourite! Bergenia 'Dragonfly Angel Kiss' forms neat clumps of glossy evergreen foliage that turns a deep shade of claret during the winter months. In spring, this provides the perfect backdrop for its beautiful white flowers that age to palest pink. Commonly known as Elephant Ears, this hardy perennial is extremely easy to grow in almost any site or soil, and needs very little maintenance. Perfect for creating eye catching ground cover. Height: 25cm (10"). Spread: 30cm (12"). More info
    • 1 x 2 litre potted bergenia plant

    • Despatch: By end of August 2015
    •  
    • £12.99
    • 2 x 2 litre potted bergenia plants

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