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 167 products.
 

Pansy 'Matrix™ Mixed'

Viola x wittrockiana

 Customer Rating
  • Colour throughout winter and spring
  • 100% bigger, better and stronger than Pansy 'Universal'

This vibrant blend has been specially bred for their excellent branching habit and super size flowers; and the results speak for themselves! The compact sturdy stems hold their vibrant flower heads high, whatever the weather brings to ensure your garden is filled with colour. Easy to grow, Pansy 'Matrix Mixed' is the perfect plant for all your containers and bedding displays. Height and spread: 23cm (9").


Culinary note: Some parts of these flowers are edible. The crystallised petals are great decorations for cakes and cookies, or they can be added straight to green salads for an injection of colour. For more details about edible flowers click here.

 

 

Buy this variety in a larger plant size
More info
    • 36 pansy plug plants

    • Despatch: By end of October 2016
    • + FREE £5 voucher  
    • £6.99
    • 72 pansy plug plants

    • Despatch: By end of October 2016
    • + FREE £5 voucher  
    • £9.99

Iberis sempervirens (Large Plant)

Sprays of white, fragrant blooms smother the evergreen foliage of this Candytuft. Iberis sempervirens thrives in poor soils making this RHS AGM variety particularly useful for ground cover in rockeries and on top of walls. This shrubby perennial is equally at home in the front of borders where it will attract beneficial insects to its scented flowers. Height: 30cm (12"). Spread: 50cm (20").

 

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

    • Despatch: Within 28 days
    •  
    • £9.99
    • 2 x 1 litre potted iberis plants

    • Despatch: Within 28 days
    •  
    • £14.99

Primrose 'Planets Mixed'

Primula

  • Distinctive new colours
Freshen up tired spring borders with these exciting new Primulas! Each shapely flower of Primrose 'Planets Mixed' has a contrasting inner ring of colour that makes them really stand out from crowd. This unique feature has never been seen before in Primroses - so it's sure to attract attention. Grow them along path edges or in prominent patio containers where they can really be appreciated. Height and spread: 20cm (8").

Culinary note: Some parts of these flowers are edible. Try the sweet tasting petals on top of salads or even pancakes, crystallise them for use as cake decorations too. For more details about edible flowers click here.

More info
    • 12 primrose plug plants

    • Despatch: By end of October 2016
    •  
    • £8.99
    • 24 primrose plug plants

    • Despatch: By end of October 2016
    • SAVE* £4.99  
    • £17.98 £12.99
    • 48 primrose plug plants

    • Despatch: By end of October 2016
    • SAVE* £16.97  
    • £35.96 £18.99

Corydalis flexuosa 'Purple Leaf' (Large Plant)

Corydalis flexuosa 'Purple Leaf' is an unusual garden plant, which is often admired. Plants may look delicate, but they're quite robust, and enjoy our cool English summers. Flowering can often persist from late spring into the middle of summer.

Corydalis plants will effortlessly form clumps in borders, rockeries and shady corners. The foliage is ferny and purple, tinged with red. The accompanying flowers are tubular and in a dashing shade of bottle blue. Height: 15cm (6"). Spread: 50cm (19").

 

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

    • Despatch: Within 28 days
    •  
    • £9.99
    • 2 x 1 litre potted corydalis plants

    • Despatch: Within 28 days
    •  
    • £16.99

Dianthus 'Perfumed Pinks' Collection

Carnation, Pink

Enjoy a garden filled with fragrance and colour this summer with this wonderful Perfumed Pinks Collection . Mounds of silver-green foliage produce an abundance of perfumed dianthus flowers. Perfect for borders and containers, or for cutting for a vase indoors. Height: 40cm (16"). Spread: 30cm (12"). Supplied as jumbo plugs.

  • Collection comprises:
  • Dianthus 'Cosmic Pink Swirl' - Pink and white petals with an almost shimmering effect.
  • Dianthus 'Cranmere Pool' - Palest pink petals with a touch of red deep within the ruffled centres.
  • Dianthus 'Doris' - Soft pastel pink blooms with a lovely fragrance.
  • Dianthus 'Letitia Wyatt'- Delicate baby pink blooms.
  • Dianthus 'Gran's Favourite' (x 5) - A popular and well known variety with pretty picotee edges.
More info
    • 5 dianthus Postiplug plants

    • Despatch: By end of October 2016
    •  
    • £9.99
    • 10 dianthus postiplug plants

    • Despatch: By end of October 2016
    •  
    • £14.99
    • 20 dianthus postiplug plants

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

Polyanthus 'Most Scented Mixed' (Garden Ready)

Primula

  • The fast-track to a hassle-free garden - just plant, water and enjoy!
  • Quality plants delivered to your door, hardened off and ready to plant out
  • Fully-grown, super-robust, healthy plants
Our garden ready plants are selected for garden performance, straight from the nursery. We send them to you 'green' ahead of flowering (but please note some varieties may show a few blooms), which means plants will establish quickly and all their energy goes into producing better roots, so they produce more flowers throughout the season.

We've sniffed all the polyanthus we could find to be able to make up this exclusive mix for you! Each fresh colour has a lovely, strong fragrance, to bring you a true scent of spring. From late winter, these vigorous perennials produce plenty of flowers on short, stocky stems, above neat rosettes of lush foliage. Fill all your pots and borders with Polyanthus 'Most Scented Mix' for a riot of scent and colour even on the dreariest winter days! Height and spread: 25cm (10").

Culinary note: Some parts of these flowers are edible. Try the sweet tasting petals on top of salads or even pancakes, crystallise them for use as cake decorations too. For more details about edible flowers click here.

 

Garden ready special offer
More info
    • 30 polyanthus garden ready plants

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

Polyanthus 'Firecracker' (Garden Ready)

Primula

  • The fast-track to a hassle-free garden - just plant, water and enjoy!
  • Quality plants delivered to your door, hardened off and ready to plant out
  • Fully-grown, super-robust, healthy plants

Our garden ready plants are selected for garden performance, straight from the nursery. We send them to you 'green' ahead of flowering (but please note some varieties may show a few blooms), which means plants will establish quickly and all their energy goes into producing better roots, so they produce more flowers throughout the season.


An eye-catching new Polyanthus bearing yellow blooms with a fiery orange-red edge. These long-lasting flowers are borne on strong, stout stems above rosettes of semi-evergreen foliage. Versatile and easy to grow, Polyanthus 'Firecracker' is perfect for edging borders and brightening up spring patio containers. Height and spread: 23cm (9").


Culinary note: Some parts of these flowers are edible. Try the sweet tasting petals on top of salads or even pancakes, crystallise them for use as cake decorations too. For more details about edible flowers click here.

 

Garden ready special offer
More info
    • 30 polyanthus garden ready plants

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

Cyclamen hederifolium (Large Plant)

A delightful little plant producing delicate pink flowers with reflexed petals in the autumn. Often emerging after the flowers, the heart-shaped deep green leaves are patterned with silver, creating a striking marbled effect. Cyclamen hederifolium is a superb ground-cover plant in rock gardens and woodland gardens where it will self-seed freely to create carpets of foliage and flowers from autumn to spring, before the foliage dies back in summer. Height: 10cm (4"). Spread: 15cm (6").

 

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

    • Despatch: Within 28 days
    •  
    • £9.99
    • 2 x 1 litre potted cyclamen plants

    • Despatch: Within 28 days
    •  
    • £16.99

Polyanthus 'Firecracker'

Primula

 Customer Rating
An eye-catching new Polyanthus bearing yellow blooms with a fiery orange-red edge. These long-lasting flowers are borne on strong, stout stems above rosettes of semi-evergreen foliage. Versatile and easy to grow, Polyanthus 'Firecracker' is perfect for edging borders and brightening up spring patio containers. Height and spread: 23cm (9").

Culinary note: Some parts of these flowers are edible. Try the sweet tasting petals on top of salads or even pancakes, crystallise them for use as cake decorations too. For more details about edible flowers click here.

 

Buy this variety in a larger plant size
More info
    • 12 polyanthus plug plants

    • Despatch: By end of October 2016
    •  
    • £9.99 £7.99
    • 24 polyanthus plug plants

    • Despatch: By end of October 2016
    • SAVE £5.99  
    • £15.98 £9.99
    • 48 polyanthus plug plants

    • Despatch: By end of October 2016
    • SAVE* £18.97  
    • £31.96 £12.99

Phlox 'Bavaria'

Creeping Phlox are useful for dry, sunny spots and parched ground where other plants just won't grow! Once established, Phlox 'Bavaria' will thrive in the driest of soils, producing an impenetrable mat of fragrant flowers, suppressing weeds and resisting drought! The detailed eye on each gleaming white flower sets this stunning, evergreen drought tolerant perennial apart from the crowd. Height: 15cm (6"). Spread: 50cm (20").
More info
    • 5 phlox jumbo plug plants

    • Despatch: By end of October 2016
    •  
    • £9.99
    • 10 phlox jumbo plug plants

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

Aquilegia 'Swan Mixed'

Columbine, Granny's Bonnet

A lovely mix of colourful columbines, producing an abundance of large flowers on upright, multi-branched stems. Aquilegia 'Swan Mixed' are longer flowering than many aquilegias, and left to naturalise, they will quickly fill your garden with drifts of spring colour. Perfect for cottage gardens, perennial borders and woodland gardens. Height: 30cm (12"). Spread: 25cm (10"). More info
    • 6 aquilegia plug plants

    • Despatch: By end of October 2016
    •  
    • £5.99