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 22 products.
 

Geranium 'Rozanne'

Geranium 'Gerwat'

  • Winner of The RHS Chelsea Flower Show 'Plant of the Centenary'
  • Unique long-flowering period for a Hardy Geranium

A celebrated Cranesbill producing masses of saucer shaped, violet-blue blooms with dainty white centres. Being a sterile hybrid, Geranium 'Rozanne' flowers repeatedly throughout the summer and won’t self-seed like other Geraniums. This hardy perennial makes excellent ground cover through the front of informal borders or spilling from containers. As summer ends the loose mounds of foliage colour to reddish brown and fiery orange for an extended display into autumn. Height: 30cm (12"). Spread: 60cm (24").


Useful links:

Geranium 'Rozanne gets our vote for RHS 'Plant of the Centenary'

 

More info
    • 1 geranium jumbo plug plant

    • Despatch: By end of July 2015
    •  
    • £9.99
    • 3 geranium jumbo plug plants

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

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

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

Erigeron glaucus 'Sea Breeze' (Large Plant)

Fleabane

A low-growing, carpeting plant for coastal locations, or any difficult, exposed position in the garden. The lilac blooms come easily, and the Beach Aster or Fleabane as it is commonly known, looks great tumbling over a rock wall, or growing between cracks in paving.

Erigeron plants are tough and easy to establish, some may even refer to them as 'foolproof'. The Beach Aster is long-lived too, will flower right through the summer, and self-seed if you'd like it to! Height: 30cm (12"). Spread: 45cm (18").

More info
    • 1 x 1 litre potted erigeron plant

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

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

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

Veronica spicata 'Royal Candles' (Large Plant)

Speedwell

Veronica 'Royal Candles' produces an endless supply of upright flower spikes in a deep shade of indigo blue. With a spreading habit it will quickly form a dense mat of toothed, mid green foliage that makes superb groundcover.This low growing perennial makes a lovely feature at the front of a well drained border, where it will spill over to soften edges and add a splash of summer colour. Height and spread: 30cm (12"). More info
    • 1 x 2 litre potted Veronica plant

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

    • Despatch: By end of July 2015
    •  
    • £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"). 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

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

Veronica spicata 'Royal Candles' (Large Plant)

Speedwell

Veronica 'Royal Candles' produces an endless supply of upright flower spikes in a deep shade of indigo blue. With a spreading habit it will quickly form a dense mat of toothed, mid green foliage that makes superb groundcover. This low growing perennial makes a lovely feature at the front of a well drained border, where it will spill over to soften edges and add a splash of summer colour. Height and spread: 30cm (12"). More info
    • 1 x 1 litre potted veronica plant

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

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

Gentiana cruciata (Large Plant)

Crosswort Gentian

The Crosswort Gentian has the accolade of being the easiest Gentian to grow; it is unfussy, free-flowering and excellent for dappled shade borders. Plants are short at 30cm (12") and feature those classic Gentian-blue flowers at the tips of each stem.

Plants of Gentiana cruciata are tough, rabbit-proof and can be used as an edging plant, in containers or in the alpine rockery border. Flowers appear on this easy to grow Gentian from late summer onwards. Height and spread: 30cm (12").

More info
    • 1 x 8cm potted gentiana plant

    • Despatch: By end of July 2015
    •  
    • £9.99
    • 2 x 8cm potted gentiana plants

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

Pachysandra terminalis 'Green Carpet' (Large Plant)

Pachysandra terminalis 'Green Carpet' is an excellent plant for creating a carpet of green beneath trees and shrubs. Plants are mat-forming, and excellent at stopping weeds from taking hold. The evergreen foliage is textured, decorative and plays host to spikes of misty white flowers from early summer.

Easy to grow ground cover for awkward, shady borders, Pachysandra is the perfect choice for low-maintenance gardening. Plants stay low at just 15cm (6") and are ideal for small, oddly-shaped areas, edgings or patio containers. Height: 15cm (6"). Spread: up to 1m (39").

More info
    • 1 x 9cm potted pachysandra plant

    • Despatch: By end of July 2015
    •  
    • £9.99
    • 2 x 9cm potted pachysandra plants

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

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