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 39 products.
 

Trollius 'Dancing Flame'

Globeflower

  • New in 2015
Add some heat to your border this autumn with Trollius 'Dancing Flame'. This Globeflower has everything you'd want from a border perennial; contained vigour, long flowering habit, care-free attitude, and years of garden performance! The glorious orange blooms just keep on coming right though early summer for 8 weeks of vibrant colour. This hardy herbaceous perennial thrives in moist soils but will cope with drought conditions once established. Height: 60cm (24"). Spread: 50cm (20").
More info
    • 1 x 9cm potted trollius plant

    • Despatch: By end of August 2016
    •  
    • £11.99
    • 2 x 9cm potted trollius plants

    • Despatch: By end of August 2016
    •  
    • £17.99

Astrantia major 'Roma' (Large Plant)

Hattie's Pincushion, Masterwort

Astrantia is a vigorous, hardy perennial with flowers like small pincushions. 'Roma' is one of the best varieties, and comes with an RHS AGM. The delicate, soft pink flowers persist from June to September.

For almost instant gardening, choose Masterwort. Plants are quick-growing, easy to establish and long-lasting. Plants will grow in sun or part shade. Height: 90cm (35in) and Spread: 45cm (18").

More info
    • 1 x 1 litre potted astrantia plant

    • Despatch: By end of September 2015
    •  
    • £10.99
    • 2 x 1 litre potted astrantia plants

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

Hellebore 'Black Swan'

Helleborus × hybridus

  • New in 2015
  • T&M Exclusive
  • Grow the most prestigious Christmas Rose in your garden
Winter-flowering hellebores are true garden gems, producing luxuriant blooms when little else is in growth, let alone flower! Fresh from our unique hellebore breeding programme we have hit on the perfect form and habit with Hellebore 'Black Swan'. The sumptuously dark velvety petals, starkly contrasted by pure white stamens, are a vast improvement on older black-flowered hellebore plants. Where older types tend to face their blooms to the soil below, 'Black Swan' holds its jet-black blooms up for all to see. This classy performer deserves a place in every garden as the star attraction through winter. Height and spread: 60cm (2').
More info
    • 1 x 7cm potted plant

    • Despatch: By end of December 2015
    •  
    • £9.99
    • 3 x 7cm potted plants

    • Despatch: By end of December 2015
    •  
    • £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 hellebore jumbo plug plants

    • Despatch: By end of September 2015
    •  
    • £13.99
    • 10 hellebore jumbo plug plants

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

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 September 2015
    •  
    • £9.99
    • 3 x actaea jumbo plug plants

    • Despatch: By end of September 2015
    • SAVE £4.99  
    • £19.98 £14.99

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: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 x 1 litre potted Daylily plant

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

    • Despatch:
    •  
    • £16.99
    • Out of stock

Ajuga reptans 'Black Scallop' (Large Plant)

Ajuga reptans 'Binblasca', Bugle

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

    • Despatch: By end of September 2015
    •  
    • £7.99
    • 2 x 1 litre potted ajuga plants

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

Hellebore 'Red'

  • The very best hellebores that money can buy

Exquisite cup shaped, mauve-red blooms appear like jewels in dull winter borders. Hellebore ‘Red' is the essential low maintenance plant for any difficult, shady border where they will form clumps of leathery evergreen foliage for a year round garden presence. These resilient hardy perennials are vigorous and long lived, lasting for 20 years or more. Height and spread: 45cm (18").



Thompson & Morgan inherited the highly-commended hellebore breeding programme of Elizabeth Strangman when she retired and we are immensely proud to carry on her legacy, perfecting the amazing colours and forms of this wonderful perennial.
More info
    • 1 x 9cm potted hellebore plant

    • Despatch: By end of September 2015
    •  
    • £13.99

Thalictrum 'Black Stockings' (Large Plant)

Meadow Rue

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").

More info
    • 1 x 3 litre potted thalictrum plant

    • Despatch: By end of September 2015
    •  
    • £11.99
    • 2 x 3 litre potted thalictrum plants

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

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

    • Despatch: By end of September 2015
    •  
    • £7.99
    • 2 x 1 litre potted ajuga plants

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

Daylily 'Atlas' (Large Plant)

Hemerocallis

The Daylily is a prized garden specimen; plants are hardy, tough, usually evergreen, and produce luxurious flowers in a rainbow of colours. Daylily 'Atlas' has lemon-yellow flowers, which only last for a day each, but are produced in succession.

Plant Daylilies into cottage garden borders or large patio containers. Hemerocallis are excellent for beginners, small gardens, and will establish and grow quickly. Height: 75cm (30"). Spread: 60cm (24").


Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 x 1 litre potted Daylily plant

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

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

Daylily 'Crimson Pirate' (Large Plant)

Hemerocallis

Daylily plants are pretty much bulletproof; plants are hardy, resilient, will grow in most soils, are evergreen, and will produce glorious flowers many colours. Daylily 'Crimson Pirate' has pillar-box red flowers, which last a day each, but are borne on plants all summer long.

Use Hemerocallis plants in cottage garden borders or large patio pots. Daylilies are good for beginners and small gardens, and are simply very easy to grow. Height: 75cm (30"). Spread: 60cm (24").


Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 x 1 litre potted Daylily plant

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

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