Thompson & Morgan

Important delivery notice
The products on this site are only delivered to UK addresses. If you require delivery to another country please visit one of our other sites below.

Refine Results

Refine by..

Email Newsletter

Sign up to our newsletter

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 54 products.
 

Verbena bonariensis 'Lollipop' (Large Plant)

 Customer Rating

Like its parents, Verbena bonariensis 'Lollipop' boasts the same tight clusters of floating purple flowers, but has short, compact stems that reach only half the height. Well shaped, uniform plants with an open airy habit attract butterflies to their glowing blooms from June to September. This fabulous hardy dwarf verbena is perfectly proportioned for patio pots and the front of borders where it creates a wonderful delicate airy effect. Height and spread: 60cm (24").

 

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

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

    • Despatch: By end of August 2016
    • SAVE *£2.99  
    • £15.98 £12.99

Hosta 'Francee' (Large Plant)

Hosta fortunei

Hosta 'Francee' is a tough, weatherproof variety with foliage that is deeply ribbed and edged in jagged, cream margins. When protected from slugs, this vigorous hardy plant will quickly form clumps of foliage that can light up a shady spot.

In mid summer, this RHS Award of Garden Merit variety produces attractive flower spikes that stand above the foliage. Hostas are recommended for borders, woodland gardens and patio pots, thriving in shade. Height: 55cm (22"). Spread: 100cm (39").

 

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

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

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

Meconopsis 'Union Jack' Collection

Meconopsis

We've put together a collection of these wonderful perennial poppy plants for you for a patriotic display in your summer border:

Meconopsis Napaulensis will bring the deep red hues to the display, a rich shade on tall stems, flowering from late spring through to early summer. Height: 150cm (59"). Spread 100cm (39").

Meconopsis betonicifolia 'Alba', rarely seen, this stunning white form of the Himalayan blue poppy is a real eye-catcher in late spring and early summer. Pure white, silky petals surround golden yellow stamens to form clear, single blooms up to 10cm (4") across. This captivating short-lived perennial is 99% true to type; very occasionally the odd blue flower may appear. Height: 90cm (35"). Spread: 50cm (20").

Meconopsis betonicifolia - a stunning blue Himilayan Poppy that will certainly make an impact on its own, let alone as part of this collection. The large bowl shaped blooms will have a dramtic effect and are certainly worth a place in your garden. Height: 120cm (47"). Spread 45cm (18").

More info
    • 3 x 7cm potted meconopsis plants

    • Despatch: By end of November 2016
    •  
    • £19.99
    • 6 x 7cm potted meconopsis plants

    • Despatch: By end of November 2016
    • SAVE £41.95  
    • £71.94 £29.99

Hosta undulata var. undulata (Large Plant)

Hosta undulata var. undulata gives funnel shaped, lavender blue flowers on tall spikes, which are held above the neat, weatherproof clumps of foliage. The bright green leaves have a curious, twisted growth habit which gives them a fascinating appearance.

Hosta undulata var. undulata is an RHS AGM variety, which makes a fabulous addition to borders, woodland gardens and patio containers, producing the best colour in a shady position. Height: 100cm (39"). Spread: 45cm (18").

 

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

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

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

Gerbera 'Sweet Collection' (Hardy)

Barberton Daisy, Transvaal Daisy

 Customer Rating
  • Bigger and better winter hardy gerberas
  • Three seasons of stunning colour
Growing Gerberas outdoors was virtually inconceivable ten years ago. Now these 2nd generation hardy Gerberas can be grown year round in the border! Gerbera 'Sweet Collection' produces plenty of classic daisy blooms that are twice the size of other hardy Gerberas, and make fabulous cut flowers. Blooming reliably from June to October, these wonderful clump forming hardy perennials make a big impact in borders and patio containers. Height and spread: 45cm (18").
More info
    • 3 x 7cm potted gerbera plants (1 of each variety)

    • Despatch: By end of September 2016
    • SAVE £10  
    • £19.99 £9.99

Verbena bonariensis

Glandularia, Verbena patagonica

Tightly clustered florets form glowing lavender flower heads that float atop stiffly upright, branching stems. The long lasting blooms of Verbena bonariensis attract clouds of bees and butterflies. This perennial verbena has enjoyed a resurgence in popularity in recent years, associating beautifully with grasses for a tranquil planting scheme, or adding a touch of architectural style to the back of herbaceous borders. This elegant perennial is at its most effective when planted in large swathes. Height: 200cm (79"). Spread: 45cm (18").
More info
    • 6 verbena plug plants

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

Gunnera manicata (Large Plant)

Gunnera is the 'big daddy' of the gardening world. The giant evergreen leaves can reach 1-2 metres across, and will add the wow factor to any garden, although isn't necessarily suitable for smaller gardens!

Also affectionately known as Giant Rhubarb, Gunnera is robust, spectacular and architectural. They make great specimen plants bog gardens and waterlogged spots, the reflection in water is especially beautiful. Gunnera manicata holds an RHS Award of Garden Merit too. Height: 2.5m (8') Spread: 4m (13').

 

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

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

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

Echinacea purpurea 'Pink Parasol'

Coneflower

Pink Parasol has stunning, large, deep purplish-pink blooms, with contrasting orange cones standing proudly above strong stems. Each bloom can reach 7-10cm (3-4in) in diameter compared to other varieties only reaching a diameter of 5-7cm (2-3in). Once established, bushy plants produce clusters of stems adding height to your borders, attracting butterflies and beneficial insects to your garden, as well as making dramatic long lasting cut flowers. Height 90-120cm (3-4ft)
More info
    • 6 echinacea plug plants

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

Meconopsis betonicifolia 'Blue'

Himalayan Poppy

Meconopsis betonicifolia - a stunning blue Himilayan Poppy that will certainly make an impact on its own, let alone as part of this collection. The large bowl shaped blooms will have a dramtic effect and are certainly worth a place in your garden. Height: 120cm (47"). Spread 45cm (18"). More info
    • 1 x 7cm potted meconopsis plant

    • Despatch: By end of November 2016
    •  
    • £11.99

Meconopsis grandis 'Lingholm' (Large Plant)

Himalayan Blue Poppy

This captivating short lived perennial is a 'must have'! From basal rosettes of hairy leaves rise tall stems bearing spectacular, single clear blue poppy flowers, up to 10cm (4") across. Meconopsis 'Lingholm' makes a stunning feature planted en masse in woodlands, and moist, shady borders. Height: 75cm (30"). Spread: 50cm (20").

 

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

    • Despatch: By end of September 2016
    •  
    • £9.99
    • 2 x 1 litre potted meconopsis plants

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

Dierama Collection

Angel's Fishing Rod

Clusters of delicate bell shaped flowers dangle from impossibly slender stems that arch and tremble in the breeze. From July, the elegant blooms rise above clumps of slender, semi-evergreen, grass like foliage before giving way to attractive seedheads in late summer. Dierama is a truly graceful hardy perennial and makes a most beautiful addition to cottage garden borders, adding movement and fluidity to planting schemes. Often referred to as Angel's Fishing Rod, it looks particularly attractive when overhanging water. Height: 100cm (39"). Spread: 45cm (18").

  • Collection comprises:
  • Dierama argyruem - Dazzling white bell shaped flowers that dangle from arching stems.
  • Dierama 'Blackberry Bells' - Deep purple pink blooms on wiry stems.
  • Dierama erectum - Stiffer stems filled with outward facing blooms, rather than pendulous flowers.
More info
    • 3 x 9cm potted dierama plants

    • Despatch: By end of July 2016
    •  
    • £19.99
    • 6 x 9cm potted dierama plants

    • Despatch: By end of July 2016
    •  
    • £29.99

Verbena bonariensis 'Lollipop'

Glandularia, Verbena patagonica

 Customer Rating
  • Unique mini Verbena for your patio
Like its parents, Verbena bonariensis 'Lollipop' boasts the same tight clusters of floating purple flowers, but has short, compact stems that reach only half the height. Well shaped, uniform plants with an open airy habit attract butterflies to their glowing blooms from June to September. This fabulous hardy dwarf verbena is perfectly proportioned for patio pots and the front of borders where it creates a wonderful delicate airy effect. Height and spread: 60cm (24").
More info
    • 3 verbena jumbo plug plants

    • Despatch: By end of July 2016
    •  
    • £11.99
    • 6 verbena jumbo plug plants

    • Despatch: By end of July 2016
    • SAVE *£5.99  
    • £23.98 £17.99