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 26 products.
 

Brunnera 'Alexander's Great'

Brunnera macrophylla, Siberian Bugloss

A statement large-leaved foliage plant for borders and large containers. This hardy perennial returns bigger and better each spring producing neat clumps of heavily silver-veined leaves for dramatic effect in the garden. Use Brunnera 'Alexander's Great' as an underplanting to trees and shrubs or add in with your favourite border perennials for a winning mixed display. Sprays of airy sky-blue flowers on wirey stems also appear in spring to create extra seasonal interest. This low maintenance perennial plant thrives in shade but will happily perform in sunny locations too. Use Brunnera 'Alexander's Great' in containers on the patio to add contrast to your favourite seasonal bedding plants. Height: 40cm (16"). Spread: 90cm (36"). More info
    • 2 brunnera jumbo plug plants

    • Despatch: By end of May 2016
    • SAVE £6  
    • £14.99 £8.99
    • 4 brunnera jumbo plug plants

    • Despatch: By end of May 2016
    • SAVE £12  
    • £24.99 £12.99

Blechnum brasiliense 'Volcano'

Dwarf Brazilian Tree Fern, Hard Fern

 Customer Rating
  • Hardy down to -5c in the UK
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. Over time, this fern will form a small trunk, growing to around 30cm tall in 10 years. A relative of our native Deer Fern, this fern thrives in low light, so it's perfect for giving an exotic touch to your home and garden. Despite its tropical origins, Blechnum brasiliense is hardy enough to be grown in most UK gardens, tolerating temperatures down to -5C (23F) 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 July 2016
    •  
    • £12.99
    • 2 x 9cm potted blechnum plants

    • Despatch: By end of July 2016
    •  
    • £19.99

Tricyrtis 'Mixed'

Tricyrtis formosana, Jewel Lily, Toad LIly

An unsung garden hero in our opinion. Tricyrtis thrives in damp shady corners where many other plants would struggle, rewarding you with laddering stems, bejewelled in speckled blooms in three different colours. Sometimes known as the Jewel Lily, or the less attractive Toad Lily, we're sure you'll fall in love with the beauty of this unusual hardy perennial. Height: 75cm (30"). Spread: 70cm (28"). More info
    • 3 bare root tricyrtis plants

    • Despatch: By end of May 2016
    •  
    • £9.99
    • 6 bare root tricyrtis plants

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

Mukdenia 'Karasuba'

Mukdenia 'karasuba'

Here's a hardy perennial you've likely never seen before! The palmate, rounded, green leaves of Mukdenia karasuba acquire a pronounced crimson red colour in the leaf tips throughout summer. But, whilst you're waiting for that fabulous summer foliage display you'll enjoy white, bell-shaped flowers on naked stems in early spring. Definitely something different for the garden! This low growing hardy perennial makes the ideal ground cover option for shady spots in the garden, where the flowers will really stand out in the gloom. Height: 30cm (12"). Spread: 40cm (16"). More info
    • 1 bare root mukdenia plant

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 2 bare root mukdenia plants

    • Despatch:
    •  
    • £14.99
    • Out of stock

Brunnera macrophylla 'Jack Frost' (Large Plant)

Siberian Bugloss

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").

 

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

    • Despatch: By end of May 2016
    •  
    • £12.99
    • 2 x 3 litre potted brunnera plants

    • Despatch: By end of May 2016
    •  
    • £19.99

Vinca minor 'Atropurpurea'

Lesser Periwinkle

Deep plum-purple flowers appear in spring above the evergreen foliage of Vinca minor 'Atropurpurea'. This attractive Lesser Periwinkle is less vigorous than its larger cousin Vinca major, making it easier to confine to its allotted space. Vinca are perfect for filling tricky spots where little else grows. Ideal for creating weed suppressing ground cover in almost any position, from sunny banks to dark, shady corners. Height: 20cm (8") Spread: 50cm (19"). More info
    • 1 x 8cm potted vinca minor plant

    • Despatch: By end of May 2016
    •  
    • £9.99
    • 2 x 8cm potted vinca minor plants

    • Despatch: By end of May 2016
    •  
    • £16.99

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:
    •  
    • £14.99
    • Out of stock
    • 3 bare root brunnera plants

    • Despatch: By end of May 2016
    •  
    • £24.99

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").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 3.5 litre potted astilbe plant

    • Despatch: By end of July 2016
    •  
    • £12.99
    • 2 x 3.5 litre potted astilbe plants

    • Despatch: By end of July 2016
    •  
    • £19.99

Vinca minor 'Gertrude Jekyll'

Lesser Periwinkle

The spreading stems of Vinca minor 'Gertrude Jekyll' provide glossy, evergreen foliage that makes useful, weed-beating ground cover. This lovely Lesser Periwinkle flowers relentlessly from spring to autumn. The pure white blooms will brighten even the shadiest position in the garden. Vinca is ideal for tricky areas where nothing else will grow. This low growing, creeping plant will thrive in the most inhospitable of places and requires little attention or maintenance. Height: 20cm (8") Spread: 50cm (19"). More info
    • 1 x 9cm potted vinca minor plant

    • Despatch: By end of September 2016
    •  
    • £9.99
    • 2 x 9cm potted vinca minor plants

    • Despatch: By end of September 2016
    •  
    • £16.99

Pulmonaria 'Sissinghurst White' (Large Plant)

Pulmonaria officinalis, Lungwort

Despite its unattractive common name of Lungwort, Pulmonaria is a very pretty hardy perennial for ground cover in shady corners, or beneath trees and shrubs. The foliage of Pulmonaria ‘Sissinghurst White’ is felted, and mottled in white, and accompanied by striking white flowers throughout the summer. Bees love the nectar-rich blooms of Pulmonaria, and this variety is such a reliable plant that it has been awarded an RHS Award of Garden Merit. Excellent for cottage gardens and woodland plantings. Height: 30cm (12"). Spread: 45cm (18").

 

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

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

    • Despatch: By end of May 2016
    •  
    • £16.99

Vinca major

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 May 2016
    •  
    • £9.99
    • 2 x 9cm potted vinca major plants

    • Despatch: By end of May 2016
    •  
    • £16.99

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").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
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