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.



We have found 19 products.
 

Dianthus 'Doris'

Carnation, Pink

This well known RHS AGM variety is one of the longest flowering Pinks you'll find. An abundance of double pink flowers with deep pink centres are produced all summer long, above mats of silvery green foliage. With a rich, sweet fragrance, Dianthus 'Doris makes a delightful cut flower that will fill your home with fragrance. This compact hardy perennial is perfect for alpine gardens and rockeries or planted through the front of beds and borders. Height and spread: 25cm (10").


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

More info
    • 5 dianthus Postiplug plants

    • Despatch: By end of August 2015
    •  
    • £9.99
    • 10 dianthus Postiplug plants

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

Dianthus Lucky Dip

Carnation, Pink

Buy our great value 'surprise' packs of 'pinks'. For just £4.99 you can receive a pack of pinks worth £9.99. To allow us to offer you such a good price, we can't take orders for specific varieties, but whatever we decide to send, you won't be disappointed!


Each customer can order up to 5 'Lucky Dip' packs. If you order more than 1 pack, we'll do our best to send a different variety for each pack ordered, subject to availability. A pack represents a single variety and not a mixture of several varieties.

 

Culinary note: Dianthus flowers are edible.

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click hereOther Lucky Dip Products

More info
    • 1 dianthus lucky dip

    • Despatch: By end of July 2015
    •  
    • £9.99 £4.99

Dianthus 'Crimson Rim'

Carnation

  • At last - a new carnation with a traditional fragrance

This stunning hardy Carnation bucks the modern trend for flashy flower colours at the expense of their fragrance. Dianthus 'Crimson Rim' combines elegant pristine white blooms with a stylish raspberry edge and a wonderful rich clove fragrance. This clump forming perennial is undemanding and well behaved making it perfect for the front of borders. And with a such a free flowering habit you'll have plenty of stems to spare for a vase indoors. Height: 40cm (16"). Spread: 30cm (12").


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

 

More info
    • 5 dianthus jumbo plug plants

    • Despatch: By end of July 2015
    •  
    • £9.99
    • 10 dianthus jumbo plug plants

    • Despatch: By end of July 2015
    •  
    • £14.99
    • 20 dianthus jumbo plug plants

    • Despatch: By end of July 2015
    •  
    • £24.99

Dianthus 'Ever-blooming Mixed' (Hardy)

Carnation

Strong upright stems carry large ruffled blooms in a vibrant mix of red, orange, yellow and pink carnations. These hardy perennial dianthus are cottage garden essentials. The fragrant carnation flowers are excellent for cutting for a bright display indoors. Perfectly proportioned for the front of sunny borders where their mounds of silvery green foliage remain evergreen throughout the year. Height: 60cm (24"). Spread: 40cm (16").

 

Culinary note: Dianthus flowers are edible.

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

More info
    • 6 dianthus plug plants

    • Despatch: By end of August 2015
    •  
    • £5.99
    • 36 dianthus plug plants

    • Despatch:
    •  
    • £10.99
    • Out of stock
    • 72 dianthus plug plants

    • Despatch: By end of September 2015
    • Double up 36 to 72 for £5 extra  
    • £15.99

Helianthemum Collection

Rock Rose, Sun Rose

These tough little rock roses are hardy, drought tolerant and trouble-free, producing glorious colour from late spring to midsummer. If pruned after flowering, they'll even reward you with a second flush of blooms in late summer! The nectar-rich flowers, set against a backdrop of silvery, semi-evergreen foliage, are loved by bees and other insects. This helianthemum collection makes excellent groundcover or a versatile addition to rockeries or hot, dry borders. Height: 20cm (8"). Spread: 30cm (12").
  • Collection comprises the following varieties:
  • Helianthemum 'Ben Mohr' - Orange, saucer shaped flowers.
  • Helianthemum 'Pink Angel' - An abundance of delicate double, pink flowers.
  • Helianthemum 'The Bride' - A pretty, white rock rose with an RHS Award of Garden Merit.
  • Helianthemum 'Ben Fhada' - Bright, primrose yellow blooms with golden egg-yolk centres.
  • Helianthemum 'Peachy Keen' - New peach bloomed variety 'Peachy Keen' has an overwhelming amount of petals, further boosting the effect in your garden!
More info
    • 5 helianthemum jumbo plug plants - 1 of each variety

    • Despatch: By end of July 2015
    •  
    • £14.99
    • 10 helianthemum jumbo plug plants - 2 of each variety

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

Heuchera 'Prince of Silver' (Large Plant)

Coral Flower, Coral Bells

  • New in 2015
The shimmering leaves of Heuchera 'Prince of Silver' are overlaid with dark purple veins which age to a gentle shade of mossy green. In spring, the eye-catching foliage is joined by delicate sprays of creamy flowers that emerge from pink buds. This lovely herbaceous evergreen forms neat clumps which provide year round interest in containers and borders. A superb perennial that will attract pollinating insects to its nectar rich blooms. Height: 45cm (18"). Spread: 30cm (12").
More info
    • 1 x 2 litre potted heuchera plant

    • Despatch: By end of July 2015
    •  
    • £8.99
    • 2 x 2 litre potted heuchera plants

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

Dianthus 'Gran's Favourite'

Carnation, Pink

This well loved RHS AGM variety is as popular as ever for its white blooms with raspberry picotee edges. The clove scented flowers of Dianthus 'Gran's Favourite' are produced in abundance above a carpet of silvery green foliage. With such a prolific flowering period there will be plenty of blooms to spare for a vase indoors. This super little Pink is perfectly hardy and a makes a lovely addition to the front of cottage garden borders. Height and spread: 40cm (16").


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

More info
    • 5 dianthus Postiplug plants

    • Despatch: By end of July 2015
    •  
    • £9.99
    • 10 dianthus Postiplug plants

    • Despatch: By end of July 2015
    • Save £4.99  
    • £19.98 £14.99

Perovskia 'Blue Spire' (Large Plant)

Russian Sage

Perovskia 'Blue Spire' is an easy maintenance plant, which is particularly at home in a bright, sunny border. Plants of Russian Sage are drought resistant, and will establish quickly and easily, and are ideal for beginners and first time gardeners. They can also be grown in coastal areas quite successfully.

The foliage of Perovskia is silvery and aromatic, and plants will look fantastic when planted en masse. The blue flowers combine well, and are useful for colour later in the summer. Plants of Russian Sage are loved by bees and butterflies, and 'Blue Spire' also holds an RHS Award of Garden Merit. Height: 120cm (48"). Spread: 1m (39").

More info
    • 1 x 3.5 litre potted perovskia plant

    • Despatch: By end of July 2015
    •  
    • £10.99
    • 2 x 3.5 litre potted perovskia plants

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

Achillea filipendulina 'Coronation Gold' (Large Plant)

Yarrow

One of the very best herbaceous perennials for a mixed border, Achillea is easy to grow and a low maintenance plant. 'Coronation Gold' is a popular variety, which has flat heads of golden-yellow flowers over a long summer period.

Achillea loves a hot, sunny border and will add colour to your summer garden for a minimum of effort. The flower heads are incredibly eye-catching and plants are quick to establish, filling a gap in the border. Height: 1m (39"). Spread: 50cm (20").

More info
    • 1 x 1 litre potted achillea plant

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

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

Artemisia arborescens 'Powis Castle' (Large Plant)

Artemisia arborescens 'Brass Band', Wormwood

A common sight in stately home gardens and local parks, Artmesia is often chosen due to its resilient, drought tolerant, easy grow attitude.

The holder of an esteemed RHS AGM, 'Powis Castle' is a hardy perennial which is evergreen, easy to maintain and can add a silver glint to borders. Use Artemisia as edging for pathways in cottage garden style borders. Height and Spread: 50cm (19").

More info
    • 1 x 1 litre potted artemisia plant

    • Despatch: By end of August 2015
    •  
    • £9.99
    • 2 x 1 litre potted artemisia plants

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

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

Brunnera macrophylla 'Sea Heart' (Large Plant)

Siberian Bugloss

A choice perennial for the plant connoisseur! Brunnera macrophylla 'Sea Heart' forms dense clumps of shimmering, silvery foliage with distinct grey-green veining. The metallic leaves of this variety are particularly thick, reducing the risk of scorch. Throughout Spring, this lovely Siberian Bugloss bears delicate sprays of pale blue and pink flowers, reminiscent of Forget-Me-Nots. A lovely low maintenance ground cover plant that makes a big impact in shaded woodland areas and cottage garden borders. Height: 30cm (12"). Spread: 60cm (24"). More info
    • 1 x 3 litre potted brunnera plant

    • Despatch: By end of July 2015
    •  
    • £12.99
    • 2 x 3 litre potted brunnera plants

    • Despatch: By end of July 2015
    •  
    • £20.99