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 20 products.
 

Heuchera 'Patchwork' Mix

Coral Flower, Coral Bells

 Customer Rating
Sprays of delicate, tiny flowers float on wiry stems above neat mounds of vibrant foliage. Prized for their colourful leaves, these versatile semi-evergreen perennials make excellent drifts of ground cover, adding a distinctive splash of colour to the front of borders, or even brightening winter containers. Their airy blooms attract bees and are also useful as cut flowers. Height and spread: 40cm (16").
More info
    • 3 heuchera Postiplugs

    • Despatch: By end of July 2015
    • + FREE £5 voucher  
    • £8.99
    • 6 heuchera Postiplugs

    • Despatch: By end of August 2015
    • + FREE £5 voucher  
    • £12.99

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

Perennial Ground Cover Collection

  • New in 2015

Our ground cover collection of hardy herbaceous perennials brings so many benefits, which all lead to one thing: low maintenance gardening. We've selected some of our best low-growing perennials to offer a range of planting solutions. Use them as front of border plants in large sunny borders or set them in dappled shade as underplanting to trees and shrubs. You can even try them in pots and use your new perennial containers alongside seasonal pots. Every plant in the mix offers a controlled spreading habit, helping to quickly fill borders, cover soils and prevent weeds taking hold. And less weeding leads to more time spent enjoying your garden!


  • Perennial Ground Cover Collection comprises:
  • Arabis 'Lotti Pink' - A spring flowering, cushion-like perennial.
  • Armeria 'Ballerina Mixed' - Dense cushions of bright green foliage produce spherical flower heads set atop sturdy upright stems.
  • Dianthus deltoides 'Red' - Neat clumps of silver green foliage that makes stunning ground cover.
  • Campanula 'Dwarf Blue' - Cushion-like plants, which are smothered in violet-blue flowers through the summer months.
  • Aubrieta 'Mixed' - These tough little plants will thrive in the poorest of soils, forming dense mats of evergreen foliage.
  • Erigeron 'Stallone' - This cheery clump forming perennial enjoys light sandy soils, making it ideal for coastal gardens.

Powerliner® plugs are well established, mature plugs which can be potted on or can be planted straight into the border or containers. Each plug module is 6.5cm in diameter.
More info
    • 6 Powerliner plug plants - 1 of each variety

    • Despatch: By end of September 2015
    •  
    • £8.99
    • 12 Powerliner plug plants - 2 of each variety

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

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

Oxalis 'Sunny' (Large Plant)

Shamrock, Sorrel

The Burgundy Shamrock is versatile, and can be used in summer patio pots, bedding, borders, rockeries, or beneath trees and shrubs. Oxalis 'Sunny' is particuarly handsome, with leaves carrying in burgundy and ruby colourings.

The rich foliage is accompanied by tubular pink flowers from spring to summer. In very mild areas, Oxalis can be grown in sheltered borders or patio pots. The spring foliage looks especially pretty against spring bulbs. Height: 20cm (8"). Spread: 30cm (12").

More info
    • 1 x 2 litre potted oxalis plant

    • Despatch: By end of July 2015
    •  
    • £9.99
    • 2 x 2 litre potted oxalis plants

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

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

Sedum 'Matrona' (Large Plant)

Sedum telephium, Stonecrop

Sedum will attract butterflies to the garden in their droves. Sedum plants are long-lasting, hardy and drought tolerant. Sedum 'Matrona' forms a clump of foliage, with a unique bronze tinge, contrasting beautifully with its pink autumn blooms. Sedum will thrive in hot, sunny borders, and are ideal for beginners. Their autumn flowering period is welcomed, bringing new colour to the garden as summer bedding displays fade away! Height: 75cm (30"). Spread: 30cm (12"). More info
    • 1 x 1 litre potted sedum plant

    • Despatch: By end of July 2015
    •  
    • £7.99
    • 1 x 2 litre potted sedum plant

    • Despatch: By end of July 2015
    •  
    • £11.99
    • 2 x 1 litre potted sedum plants

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

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

Sedum telephium 'Purple Emperor' (Large Plant)

Stonecrop

A particularly stylish Sedum with succulent burgundy-black foliage that adds a touch of drama to the front of borders. In late summer, Sedum telephium 'Purple Emperor' produces wide panicles of ruby-red flowers that persist well into autumn. The striking blooms are loved by butterflies and provide a useful source of late season nectar for pollinating insects. This superb hardy perennial holds an RHS AGM for its garden performance. An excellent choice for hot, sunny borders and exotic planting schemes. Height and spread: 45cm (18"). More info
    • 1 x 2 litre potted sedum plant

    • Despatch: By end of July 2015
    •  
    • £11.99
    • 2 x 2 litre potted sedum plants

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

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

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

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

Sedum 'Herbstfreude' (Large Plant)

Sedum spectabile 'Autumn Joy', Stonecrop

Sedum are a magnet for butterflies in the garden; and are reliable, hardy and always colourful! Sedum 'Herbstfreude' forms a clump, with drought tolerant, fleshy foliage, and pink autumn blooms.

Sedum are most at home in hot, sunny borders, and require zero maintenance, so are ideal for beginners. Their autumn flowering period is useful for extending the season of interest in the garden. Height and spread: 60cm (24").

More info

    • 1 x 3.5 litre potted sedum plant

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

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

Vinca minor 'Illumination' (Large Plant)

Lesser Periwinkle

Vinca minor 'Illumination' is particularly striking, with gold-splashed foliage, paired with cobalt-blue flowers. This vigorous, carpeting shrub will thrive in virtually any garden position, from sun to deep shade. Its colourful foliage makes it especially useful for brightening dark corners.

Vinca minor is less vigorous than its larger cousin Vinca major, making it easier to confine to its allotted space. Periwinkle plants are easy to grow, flowering relentlessly from spring to autumn. A popular choice for landscaping and low-maintenance gardens. Height: 20cm (8") Spread: 50cm (19").

More info
    • 1 x 10.5cm potted vinca minor plant

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 1 x 3.5 litre potted vinca minor plant

    • Despatch: By end of July 2015
    •  
    • £14.99
    • 2 x 10.5cm potted vinca minor plants

    • Despatch: By end of September 2015
    •  
    • £16.99
    • 2 x 3.5 litre potted vinca minor plants

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

Arabis caucasica 'Pixie Cream' (Large Plant)

Arabis alpina subsp. caucasica, Rock Cress

Arabis is an easy to grow evergreen alpine plant for rockeries, the front of borders, scree gardens or large troughs on the patio. Arabis is unfussy and ideal for beginners, and will flower quickly after planting.

Arabis is a spring flowering, cushion-like perennial, which is excellent for growing spring bulbs through. Arabis flowers consistently from March to April, giving a weed-suppressing display of creamy-white flowers. Bees find Arabis is an important source of sweet nectar too. Height: 10cm (4"). Spread: 25cm (10").

More info
    • 1 x 1 litre potted arabis plant

    • Despatch: By end of July 2015
    •  
    • £9.99
    • 2 x 1 litre potted arabis plants

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