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. 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 9 products.
 

Geranium 'Rozanne'

Geranium 'Gerwat'

  • Winner of The RHS Chelsea Flower Show 'Plant of the Centenary'
  • Unique long-flowering period for a Hardy Geranium

A celebrated Cranesbill producing masses of saucer shaped, violet-blue blooms with dainty white centres. Being a sterile hybrid, Geranium 'Rozanne' flowers repeatedly throughout the summer and won’t self-seed like other Geraniums. This hardy perennial makes excellent ground cover through the front of informal borders or spilling from containers. As summer ends the loose mounds of foliage colour to reddish brown and fiery orange for an extended display into autumn. Height: 30cm (12"). Spread: 60cm (24").


Useful links:

Geranium 'Rozanne gets our vote for RHS 'Plant of the Centenary'

 

More info
    • 1 geranium jumbo plug plant

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 3 geranium jumbo plug plants

    • Despatch: By end of September 2015
    •  
    • £24.99

Veronica spicata 'Royal Candles' (Large Plant)

Speedwell

Veronica 'Royal Candles' produces an endless supply of upright flower spikes in a deep shade of indigo blue. With a spreading habit it will quickly form a dense mat of toothed, mid green foliage that makes superb groundcover. This low growing perennial makes a lovely feature at the front of a well drained border, where it will spill over to soften edges and add a splash of summer colour. Height and spread: 30cm (12"). More info
    • 1 x 1 litre potted veronica plant

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

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

Erigeron glaucus 'Sea Breeze' (Large Plant)

Fleabane

A low-growing, carpeting plant for coastal locations, or any difficult, exposed position in the garden. The lilac blooms come easily, and the Beach Aster or Fleabane as it is commonly known, looks great tumbling over a rock wall, or growing between cracks in paving.

Erigeron plants are tough and easy to establish, some may even refer to them as 'foolproof'. The Beach Aster is long-lived too, will flower right through the summer, and self-seed if you'd like it to! Height: 30cm (12"). Spread: 45cm (18").

More info
    • 1 x 1 litre potted erigeron plant

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

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

Candytuft 'Pink Ice' (Large Plant)

Iberis

Iberis ‘Pink Ice' is an unusual, hardy Candytuft, which carries sprays of white, fragrant blooms, which smother the evergreen foliage over a long period. Iberis ‘Pink Ice' thrives in poor soils, and plants are particularly useful for ground cover in sunny borders, planting in rockeries or on top of walls.

Iberis is a shrubby perennial, which is perfect for the front of borders, where it will attract beneficial insects with its sweetly scented flowers. Height: 30cm (12"). Spread: 50cm (20").

More info
    • 1 x 1 litre candytuft potted plant

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

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

Veronica spicata 'Royal Candles' (Large Plant)

Speedwell

Veronica ‘Royal Candles' produces an endless supply of upright flower spikes in a deep shade of indigo blue. With a spreading habit it will quickly form a dense mat of toothed, mid green foliage that makes superb groundcover.This low growing perennial makes a lovely feature at the front of a well drained border, where it will spill over to soften edges and add a splash of summer colour. Height and spread: 30cm (12"). More info
    • 1 x 2 litre potted Veronica plant

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

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

X Heucherella 'Redstone Falls' (Large Plant)

With parentage of Heuchera and Tiarella, this superb perennial has vigorous trailing stems cloaked with evergreen foliage. The copper-pink spring foliage matures to a fabulous tapestry of red, orange and gold tones by autumn. Loose panicles of creamy white flowers add extra interest in summer. X Heucherella 'Redstone Falls' is an unusual perennial that is sadly underused in gardens. Plant it in containers, hanging baskets and window boxes allowing the spreading stems to spill over in a colourful year round display. In borders it will create dense ground cover if planted en masse. Height: 25cm (10"). Spread: 35cm (14"). More info
    • 1 x 1 litre potted heucherella plant

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

    • Despatch: By end of September 2015
    •  
    • £17.99

Erigeron seciosus 'Pink Jewe'l (Large Plant)

Fleabane, Erigeron 'Rosa Juwel'

From May to July, the semi-double, bright pink flowers of Erigeron seciosus 'Pink Jewel' are a cheerful sight in the garden. These tough little daisies are reliable and undemanding, but give an outstanding performance year after year, even in tricky coastal locations where they positively thrive. The early early summer blooms are loved by pollinating insects and make delightful cut flowers too. Perfect for filling gaps at the front of perennial borders, or dotting throughout rockeries. Height: 60cm (24"). Spread: 45cm (18"). More info
    • 1 x 1 litre potted erigeron plant

    • Despatch: By end of April 2016
    •  
    • £9.99
    • 2 x 1 litre potted erigeron plants

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

Hypericum calycinum (Large Plant)

St. John's Wort, Rose of Sharon

Rose of Sharon is a well-known shrub up and down the UK, thanks to its low-growing, ground covering habit, needing virtually no maintenance. Once established, Hypericum calycinum will grow almost anywhere from fertile, moist soil to poor, dry conditions, plants will even thrive in deep shade! The large, daffodil-yellow flowers of Rose of Sharon carry a central powder-puff of anthers from summer to autumn. Hypericum is a versatile shrub, which makes excellent spreading, landscape-style ground cover for borders and woodland areas. Plants can also be trimmed into an attractive low hedge. Height: 60cm (24"). Spread: 150cm (59"). More info
    • 1 x 1 litre potted hypericum plant

    • Despatch: By end of April 2016
    •  
    • £9.99
    • 2 x 1 litre potted hypericum plants

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

Creeping Thyme (Large Plant)

Thymus serpyllum

One of the most useful kitchen herbs, this aromatic, evergreen creeping thyme will grow almost anywhere in containers, rock gardens, and even in cracks between paving. Ideal for creating low, carpets of groundcover that will attract bees to the tiny, pink blooms. Thyme is particularly useful in coastal areas where it copes well with winds and dry conditions. Height: 20cm (8"). Spread: 45cm (18"). More info
    • 1 x 1 litre potted thymus plant

    • Despatch: By end of April 2016
    •  
    • £9.99
    • 2 x 1 litre potted thymus plants

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