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.


For beautiful summer flowers browse our range of annual plants.



We have found 39 products.
 

Daylily 'Stella in Red' (Large Plant)

Hemerocallis

They always say daylilies are un-killable, and we think that's quite accurate; plants are hardy, very tough, will grow in most positions, producing lily-like flowers. Daylily 'Stella in Red' has ruby-red, gently fragrant flowers, which last a day each, but are borne on compact, grassy plants all through the summer. Plant up Hemerocallis plants into mixed garden borders or large pots. Daylilies are ideal for beginners and smaller gardens, are rabbit resistant, and last many years. Height: 30cm (12") and Spread: 45cm (18").

Culinary note: Try day lily petals in salads, soups or cooked and served as a vegetable. For more details about edible flowers click here.

 

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

    • Despatch: By end of July 2016
    •  
    • £9.99
    • 2 x 1 litre potted Daylily plants

    • Despatch: By end of July 2016
    •  
    • £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").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 9cm potted pachysandra plant

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 2 x 9cm potted pachysandra plants

    • Despatch:
    •  
    • £16.99
    • Out of stock

Ajuga reptans 'Black Scallop' (Large Plant)

Ajuga reptans 'Black Scallop' is a highly attractive variety of Bugle. The violet blue flower-spikes appear from late spring against a dense matt of glossy, liquorice-black foliage. This dark leaved perennial is more sun tolerant than many cultivars, with the foliage becoming blacker when grown in full sun. A superb groundcover plant, Bugle is a tough and reliable evergreen that copes in almost any soil conditions. Ajuga reptans 'Black Scallop' is particularly effective at the front of borders, creeping through rockeries or as groundcover in wildlife gardens where it will attract pollinating insects. Height: 15cm (6"). Spread: 60cm (24").

 

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

    • Despatch: By end of August 2016
    •  
    • £7.99
    • 2 x 1 litre potted ajuga plants

    • Despatch: By end of August 2016
    •  
    • £12.99

Hellebore 'Single Clear White' (Large Plant)

Helleborus

Hellebores are one of the first flowers to welcome a New Year in the garden, and sometimes even begin flowering in December. The Christmas Rose is ideal for shady borders, and makes useful ground cover underneath trees and shrubs.

Hellebores have colourful, nodding, cup-shaped flowers, which are long-lasting. Hellebore 'Single Clear White' produces some of the most beautiful, white flowers, and will give unmissable colour in the winter garden. Grow evergreen Hellebores in long, sweeping borders or large patio pots, they establish easily and quickly form neat clumps of growth. Height and spread: 45cm (18").

 

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

    • Despatch: By end of August 2016
    •  
    • £11.99
    • 2 x 3 litre potted hellebore plants

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

Thalictrum 'Black Stockings' (Large Plant)

The black, shimmering stems of Thalictrum 'Black Stockings' carry plenty of fluffy mauve flowers during the height of summer. This tall, willowy perennial is ideal for filling gaps in shaded borders and woodland gardens, where the delicate foliage is a useful backdrop for shorter perennials.

Thalictrum plants combines well with almost any other plant in your shady border; from ferns to hostas or even larger-leaved plants such as Rodgersia. The foliage can also be useful to add a light airy feel to summer bouquets. Height: 200cm (79"). Spread: 75cm (30").

 

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

    • Despatch: By end of August 2016
    •  
    • £11.99
    • 2 x 3 litre potted thalictrum plants

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

Hellebore 'Washfield Doubles'

Helleborus x hybridus

 Customer Rating

Breathtaking, double-flowered hellebores from the 'Washfield' collection that are bred to perfection. Intriguing colours, patterns, flecks and ruffles are a sheer delight during the cold months of winter and early spring, while their leathery palmate foliage has an evergreen presence all year round. These delightful doubles come in a wide colour range including yellows, greens, blacks, reds, apricots and many other shades. Height and spread: 40cm (16").

More info
    • 5 x 7cm potted hellebore plants

    • Despatch: By end of July 2016
    •  
    • £13.99
    • 10 x 7cm potted hellebore plants

    • Despatch: By end of July 2016
    •  
    • £18.99

Astrantia major 'Roma' (Large Plant)

Hattie's Pincushion, Masterwort

Pretty pincushion flowers in a delicate shade of pink, rise above loose clumps of attractive glossy foliage. Often seen in cottage garden borders, Astrantia major 'Roma' also thrives in the moist soil at a woodland edge or beside a pond or stream. The understated blooms, surrounded by papery outer bracts, are ideal for cutting for a delicate fresh or dried flower arrangement. Astrantia 'Roma' is one of the best varieties, and comes with an RHS AGM. The flowers persist from June to September and won't self seed as this variety is completely sterile. For almost instant gardening, choose Masterwort. Plants are quick-growing, easy to establish and long-lasting. Height: 90cm (35") and Spread: 45cm (18").

 

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

    • Despatch: By end of August 2016
    •  
    • £14.99
    • 2 x 1 litre potted astrantia plants

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

Rudbeckia fulgida var sullivantii 'Goldsturm' (Large Plant)

Coneflower

An RHS AGM winning Black Eyed Susan bearing bright, golden-yellow, daisy-like flowers with dark button eyes that make excellent cut flowers. The radiant, coneflowers of Rudbeckia fulgida 'Goldsturm' are produced over a long period, attracting bees and butterflies to their long lasting blooms. These compact perennials are easy to grow, reliably filling gaps in borders, and returning year after year. Height: 60cm (24"). Spread: 60cm (24").

 

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

    • Despatch: By end of August 2016
    •  
    • £9.99
    • 1 x 3 litre potted rudbeckia plant

    • Despatch: By end of August 2016
    •  
    • £12.99
    • 2 x 1 litre potted rudbeckia plants

    • Despatch: By end of August 2016
    •  
    • £14.99
    • 2 x 3 litre potted rudbeckia plants

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

Actaea simplex 'Black Negligee' (Atropurpurea Group)

Bugbane, Cimicifuga

Dramatic, finely cut, jet black foliage contrasts beautifully with the architectural plumes of fragrant, creamy white flowers. The bottlebrush blooms of Actaea simplex 'Black Negligee' are gently scented, appearing late in the season from September, just as other plants are fading. Bugbane is a particularly useful hardy perennial, adding stature and impact to damp, shady spots. Perfect for cottage garden borders and woodland planting schemes. Height: 120cm (47"). Width: 60cm (24").
More info
    • 1 x actaea jumbo plug plant

    • Despatch: By end of August 2016
    •  
    • £9.99

Ajuga reptans f. albiflora 'Alba' (Large Plant)

Bugle

This useful hardy perennial forms dense mats of evergreen foliage that makes superb ground cover. From late spring to early summer, Ajuga reptans f. albiflora 'Alba' is decorated with small white flower spikes that will brighten even the darkest corner of your garden. The nectar rich flowers are a magnet for pollinating insects. Commonly known as Bugle, this tough, reliable plant will grow on virtually any soil, and positively thrives in those tricky shaded areas, even where soils are poor. This versatile perennial plant is ideal for creeping through woodland areas, rockeries, or at the front of cottage garden borders. Height: 20cm (8"). Spread: 60cm (24").

 

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

    • Despatch: By end of August 2016
    •  
    • £7.99
    • 2 x 1 litre potted ajuga plants

    • Despatch: By end of August 2016
    •  
    • £12.99

Rudbeckia occidentalis 'Green Wizard' (Large Plant)

Western Coneflower

A curious and extraordinary perennial that is very different from the flashy colours of other rudbeckias. With no obvious petals, the bright green sepals of Rudbeckia 'Green Wizard' surround a black central cone. This tall variety creates an interesting spectacle for the back of borders in late summer and makes an unusual fresh cut flower that is long lasting in water, or can used in dried arrangements. Easy to grow, quickly forming a good sized plant with plenty of lush green foliage, and always a talking point. Height: 120cm (47"). Spread: 60cm (24").

 

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

    • Despatch: By end of August 2016
    •  
    • £9.99
    • 2 x 1 litre potted rudbeckia plants

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

Hellebore Collection

Grow one of the UK's favourite winter-flowering plants; each flower bursting with glorious colour; easy to grow and fully hardy! This Hellebore Collection produces intriguing colours, patterns, flecks and ruffles which are a sheer delight during the cold months of winter and early spring. Their leathery palmate foliage has an evergreen presence all year round. Plants are vigorous, low-maintenance and long-lasting in sunny or difficult shady spots, representing excellent value for money. Height and spread: 45cm (18").


  • Collection comprises 5 plants each of:
  • Hellebore 'Hybridizers Singles' - Elegant, single-flowered Hellebores from our hand-pollinated breeding program, with a whole range of patterns and colours including whites, creams, pinks, greens, yellows, purples and black.
  • Hellebore 'Washfield Doubles' - Breathtaking, double-flowered Hellebores from the 'Washfield' collection that are bred to perfection. These delightful doubles come in a wide colour rangeincluding yellows, greens, blacks, reds, apricots and many other shades.

Plants are taken from selection, and we are unable to label colours upon despatch.

More info
    • 10 hellebore jumbo plug plants - 5 of each variety

    • Despatch: By end of July 2016
    •  
    • £18.99