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 655 products.
 

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: 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

Heuchera 'Melting Fire' (Large Plant)

Coral Flower, Coral Bells

The deeply curled foliage of Heuchera hybrida 'Melting Fire' emerges a rich blood red colour and matures to a dark shade of purple-red. This eye-catching coral flower is strong growing, forming large clumps of foliage with good weather tolerance. Admired for their long season of interest, Heucheras are ideal for adding colourful, semi-evergreen foliage to borders and mixed containers. Height and spread: 40cm (16").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 2 litre potted heuchera plant

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

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

Iris pallida 'Variegata' (Large Plant)

Iris pallida 'Aurea Variegata', Iris pallida 'Argentea Variegata', Bearded Iris

Iris pallida 'Variegata' gives interest all-year round and is truly spectacular. Even before the fragrant, lilac-blue flowers appear, your plants will be playing host to showy, cream-lined foliage. This is quite a collectable Iris, which is actually very easy to grow too!

Grow Iris pallida 'Variegata' in full sun for the very best and brightest leaf colours. These spectacular Bearded Iris plants are perfect for adding height and structure to the middle of borders, where it can really show off. An easy to grow perennial, which is ideal for beginners. Height: 120cm (48"). Spread: 40cm (16").

 

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

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

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

Lewisia cotyledon 'Regenbogen' (Large Plant)

Lewisia 'Regenbogen' is known as one of the best and most colourful mixes of Lewisia available. A neat little perennial that is usually reserved for alpine houses, but it can also be grown outdoors in rockeries, wall or rock crevices or in alpine troughs. Bright blooms in tropical colours, in single and semi-double forms, are produced above neat rosettes of evergreen foliage.

Lewisia copes well in hot dry conditions, but is equally suitable for cooler summers, and can even be overwintered outdoors with some protection from wet weather. Height: 25cm (10"). Spread: 30cm (12").

 

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

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

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

Oxalis triangularis 'Burgundy Wine' (Large Plant)

Shamrock, Sorrel

The handsome ornamental foliage of this burgundy shamrock is rich burgundy-red with separate triangular shaped lobes. With an attractive summer display of tubular pink flowers, this frost tender perennial oxalis makes a delightful container plant for a conservatory or bright windowsill. In very mild areas Oxalis triangularis 'Burgundy' can be grown in sheltered borders or alpine gardens. Height: 20cm (8"). Spread: 30cm (12").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 2 litre potted oxalis plant

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

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

Agapanthus 'Lavender Haze' (Large Plant)

African Blue Lily

A very special form of the popular African Lily, 'Lavender Haze' has giant, 25cm (10") flower heads, in an unusual soft lavender colour. Agapanthus is much-loved in the UK, and can often be a reminder of holidays overseas.

An excellent, clump-forming perennial, Agapanthus is ideal for mixed perennial borders or patio pots. Plants are tough, resilient and semi-evergreen. Quick to establish, African Lilies enjoy a sunny border and any type of soil. Height: 1m (39"). Spread: 50cm (19").

 

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

    • Despatch: By end of July 2016
    •  
    • £13.99
    • 2 x 3 litre potted agapanthus plants

    • Despatch: By end of July 2016
    •  
    • £22.99

Anemone tomentosa 'Serenade' (Large Plant)

Anemone vitifolia

This charming Anemone makes a tall, herbaceous perennial with generous amounts of late summer blooms, often lasting well into the autumn. The flowers of Anemone tomentosa 'Serenade'are candy pink, and unusually semi-double, with 2 rows of soft petals.

Japanese Anemones are excellent garden plants, which are ideal for beginners. Once established, plants will last for years in the garden, with very little effort. Plants are also extremely rabbit resistant. Height and Spread: 90cm (35").

 

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

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

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

Aquilegia vulgaris var. stellata 'Nora Barlow' (Large Plant)

Granny's Bonnet, Columbine

Aquilegia 'Nora Barlow' is a classic Columbine with the most gorgeous, pompom flowers. A showpiece for the cottage garden border and very easy to grow.

Aquilegia is a carefree perennial for mixed borders or large patio containers. They will grow successfully in sun or shade and are ideal for beginners to gardening. 'Nora Barlow' may look delicate, but it's actually tough, resilient and easy to grow. Height: 90cm (35"). Spread: 40cm (15").

 

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

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

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

Foxglove 'Camelot Cream' (Large Plant)

Digitalis purpurea

Foxgloves are the perfect cottage garden plant; and new strain Foxglove 'Camelot Cream' has the traditional appearance of usual wild Foxgloves, but with blooms all around the stem, giving even more impact.

'Camelot' Foxgloves are superior, F1 hybrid quality, and plants will flower in the same year that they are planted. Digitalis are ideal for cottage garden borders, are easy to grow and will last for many years. Height: 120cm (48"). Spread: 45cm (18").

 

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

    • Despatch: By end of July 2016
    •  
    • £9.99
    • 2 x 3 litre potted foxglove plants

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

Foxglove 'Camelot Rose' (Large Plant)

Digitalis purpurea

Foxgloves are the perfect cottage garden plant; and new strain Foxglove 'Camelot Rose' has the traditional appearance of usual wild Foxgloves, but with blooms all around the stem, giving even more impact.

'Camelot' Foxgloves are superior, F1 hybrid quality, and plants will flower in the same year that they are planted. Digitalis are ideal for cottage garden borders, are easy to grow and will last for many years. Height: 120cm (48"). Spread: 45cm (18").

 

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

    • Despatch: By end of July 2016
    •  
    • £9.99
    • 2 x 3 litre potted foxglove plants

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

Geum 'Mrs J. Bradshaw' (Large Plant)

Avens

Well loved and consistently popular, Geum 'Mrs J. Bradshaw' bears flame-red, semi-double blooms on thin wiry stems. This compact, hardy perennial is easy to grow and provides long-lasting summer colour at the front of borders. Geum flowers also make a dazzling and unusual addition to cut flower arrangements. Height and spread: 60cm (24").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 2 litre potted geum plant

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

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

Hellebore 'Single Red' (Large Plant)

Helleborus

Hellebores are ideal for long-lasting winter colour in the garden, and look good when mixed with snowdrops, aconites and other early spring bulbs. Christmas Rose plants begin flowering extremely early in the year, sometimes even from Christmas, hence the name. Hellebores will enjoy a shady border, and are ideal for difficult spots beneath trees and shrubs.

Hellebores have clear-coloured, long-lasting, cup-shaped flowers, which are ideal for cutting and floating in bowls of water. Hellebore 'Single Red' offers flowers in crimson-red. The evergreen Hellebore is the connoisseur's choice for winter colour in the garden; plants are clump-forming, maintenance-free and are ideal for ground cover. 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 July 2016
    •  
    • £11.99
    • 2 x 3 litre potted hellebore plants

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