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 24 products.
 

Blechnum brasiliense 'Volcano'

Dwarf Brazilian Tree Fern, Hard Fern

  • New in 2015
Are Dicksonia tree ferns too large or expensive for you? We've found the answer - try the dwarf Brazilian tree fern instead! Blechnum brasiliensis 'Volcano' is an exciting new find for the home gardener, only recently introduced to the UK, but sure to be the next big thing! Compact plants lend themselves well to growing in patio pots; and throw up huge fronds up to 70cm (28") tall. The young fronds unfurl in a bronze volcanic hue turning a shiny green as they open. A relative of our native Deer Fern, this tender exotic fern thrives in low light, so it's perfect for giving a tropical touch to your home and garden. With tropical origins, Blechnum brasiliense is hardy enough to be grown in most UK gardens but will appreciate a sheltered spot and some winter protection. Height: 90cm (36"). Spread: 70cm (28").
More info
    • 1 x 9cm potted blechnum plant

    • Despatch: By end of September 2015
    •  
    • £12.99
    • 2 x 9cm potted blechnum plants

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

Astilbe x arendsii 'Look at Me'

False Goatsbeard

  • New in 2015
Turn any dark, damp corner of the garden into a focal point with this stunning Astilbe. The bubble-gum pink flower plumes and vivid ruby-red stems of Astilbe 'Look At me' virtually shout for your attention. This easy-grow perennial will thrive in soil too wet for many garden plants, but you don't have to tuck it out of site. This star perennial is also a top performer in patio pots when kept shaded and well watered. Voted Best New Plant when launched to the industry at the 2013 European Plantarium trade fair - we now have stock to meet consumer demand for this sought after perennial plant. Height: 45cm (18"). Spread: 50cm (20").
More info
    • 3 bare root astilbe plants

    • Despatch: By end of November 2015
    •  
    • £8.99
    • 6 bare root astilbe plants

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

Brunnera macrophylla 'Jack Frost' (Large Plant)

Siberian Bugloss

  • New in 2015

Grown for it's large, heart shaped, silver leaves with a sparkling metallic sheen that will brighten the shadiest borders. In Spring, the neat clumps of foliage are complimented by delicate sprays of sky blue flowers. Brunnera macrophylla 'Jack Frost' is a resilient, quick growing hardy perennial, making useful ground cover in those tricky shady areas. Try planting this Siberian Bugloss among hardy ferns for a woodland feel or throughout the front of cottage garden borders. Height: 45cm (18"). 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
    •  
    • £19.99

Vinca 'Collection'

Periwinkle 'Collection'

Periwinkle is one of the toughest plants you'll find, flowering relentlessly throughout the summer months in lovely shades of purple, pink and white. This vigorous low growing shrub thrives in virtually any garden position, from full sun to the darkest, shady corners. The clump forming stems provide evergreen dark green and variegated foliage that makes useful, weed suppressing ground cover. This colourful collection of Vinca major are perfect for filling those tricky areas of the garden where little else grows.
  • Collection comprises:
  • Vinca major 'Variegata' - Sky blue flowers set against variegated foliage. Height: 45cm (18"). Spread: 75cm (30").
  • Vinca minor 'Atropurpurea' - Deep plummy purple flowers. Height: 20cm (8") Spread: 50cm (19").
  • Vinca minor f. alba 'Gertrude Jekyll' - Profuse white flowers, carried on compact plants. Height: 20cm (8") Spread: 50cm (19").
More info
    • 6 vinca jumbo plug plants

    • Despatch: By end of August 2015
    •  
    • £11.99
    • 12 vinca jumbo plug plants

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

Polygonatum biflorum (Large Plant)

Solomon's Seal

Here's something to liven up a dark, shady corner in your garden! Solomon's Seal is a beautiful, spring-flowering perennial, which is often much admired. The arching stems look exotic, and feature pairs of droplet blooms in cream. Polygonatum biflorum plants are quick-growing and a low-maintenance choice for mixed borders. Plant Solomon's Seal amongst ferns and hellebores in a shady border for a real treat! Height: 200cm (78"). Spread: 60cm (24"). More info
    • 1 x 1 litre potted polygonatum plant

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 2 x 1 litre potted polygonatum plants

    • Despatch:
    •  
    • £16.99
    • Out of stock

Brunnera macrophylla 'Starry Eyes'

Siberian Bugloss

  • Brighten up shady areas with this super perennial
Sprays of exquisite starry white blooms with intense blue edges appear in spring, above heart shaped, green foliage. Brunnera macrophylla 'Starry Eyes' loves a moist, shady spot, but can cope well with drier conditions once established. This superb hardy perennial is resilient and quick growing, forming dense clumps that are perfect for creating useful ground cover in those tricky shady areas. Try planting this Siberian Bugloss among hardy ferns for a woodland feel or throughout the front of cottage garden borders Height: 35cm (14"). Spread: 60cm (24").
More info
    • 1 bare root brunnera plant

    • Despatch: By end of November 2015
    •  
    • £14.99
    • 3 bare root brunnera plants

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

Astilbe japonica 'Montgomery' (Large Plant)

False Goatsbeard

Astilbe japonica 'Montgomery' has deep, scarlet-red plumes from early summer, set against bronze-green foliage. These hardy perennials grow well in sun or shade, and are ideal for cottage garden borders or patio pots. If you're looking for a plant for a damp, shady corner that can cope with soil that may be waterlogged occasionally, then make Astilbe your choice. Astilbe plants are bushy and easy to maintain, and are rabbit resistant. Height: 70cm (28"). Spread: 45cm (18").

More info
    • 1 x 1 litre potted astilbe plant

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 2 x 1 litre potted astilbe plants

    • Despatch:
    •  
    • £16.99
    • Out of stock

Astilbe japonica 'Washington' (Large Plant)

False Goatsbeard

Astilbe are long-lived perennials, which are excellent for moist, shady corners in sun or dappled shade. 'Washington' is a particularly choice Astilbe, with pure white plumes, which appear from early summer. Plants are very rabbit resistant, and attractive to a range of different butterflies.

Astilbe are an excellent plant for cottage garden borders, or can be grown in containers for summer colour. Ensure soil is moist at all times. Height: and Spread: 50cm (19").

More info
    • 1 x 1 litre potted astilbe plant

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 1 x 3.5 litre potted astilbe plant

    • Despatch: By end of July 2015
    •  
    • £12.99
    • 2 x 1 litre potted astilbe plants

    • Despatch:
    •  
    • £16.99
    • Out of stock
    • 2 x 3.5 litre potted astilbe plants

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

Vinca major (Large Plant)

Greater Periwinkle

Periwinkle is one of the toughest plants money can buy, producing plants that flower relentlessly throughout the summer. Periwinkle is a vigorous, low growing shrub, which thrives in almost any garden position, from full sun to the darkest, shady corners.

The ground-covering stems of Vinca major provide evergreen, dark green foliage that can help to beat the weeds, with inky blue flowers from April to September! Vinca are perfect for filling those tricky areas of the garden where little else grows. Height: 45cm (18") Spread: 75cm (30").

More info
    • 1 x 9cm potted vinca major plant

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 2 x 9cm potted vinca major 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 July 2015
    •  
    • £7.99
    • 2 x 1 litre potted lamium plants

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

Geranium himalayense 'Birch Double'

Geranium himalayense 'Plenum', Hardy Geranium, Cranesbill

Vigorous and versatile, this superb cranesbill tolerates almost any situation; even full shade. A mass of double purple-pink blooms stand above the delicately serrated foliage which turns to shades of burnt red and orange in autumn. Geranium himalayense 'Birch Double' will quickly blend with other herbaceous perennials to create colourful groundcover and looks equally attractive in herbaceous borders and shady woodland gardens. Height: 25cm (10"). Spread: 60cm (24"). More info
    • 1 bare root geranium plant

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

Astilbe japonica 'Elisabeth van Veen' (Large Plant)

False Goatsbeard

Astilbe can be the perfect choice for damp, shady corners on soil that may be waterlogged from time to time. Plants are bushy and easy to maintain. 'Elisabeth van Veen' has beautiful, raspberry-purple plumes from early summer.

Astilbe can grow in sun as well as dappled shade, and make an excellent addition to mixed cottage garden borders, or can be grown as a patio plant for summer colour. Height: and Spread: 50cm (19").

More info
    • 1 x 3.5 litre potted astilbe plant

    • Despatch: By end of July 2015
    •  
    • £12.99
    • 2 x 3.5 litre potted astilbe plants

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