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 12 products.
 

Geranium 'Rozanne'

Geranium 'Gerwat', Hardy Geranium, Cranesbill

  • 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 October 2016
    •  
    • £9.99
    • 3 geranium jumbo plug plants

    • Despatch: By end of October 2016
    • SAVE *£9.98  
    • £29.97 £19.99

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").

 

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

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

    • Despatch: Within 28 days
    •  
    • £16.99

Erigeron 'Stallone'

This excellent ground cover plant is perfect for combating weeds in your borders. Use these fast growing perennial plants to smother border weeds and soften the edges of your planting areas. Each plant produces a dense mass of lovely two-toned daisy flowers that open white and slowly turn to pink and purple as they age. Perfect for drift planting or use as a gap filler around taller structural plants in your border. Also performs well as a cascading rockery plant. Height: 30cm (12"). Spread: 100cm (39"). More info
    • 6 erigeron plug plants

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

Geranium cinereum 'Jolly Jewel Collection'

Hardy Geranium, Cranesbill

  • Create a carpet of colour
  • Weed-suppressing Hardy Geraniums
  • Long flowering season

The dense foliage on these mat-forming plants is ideal for carpeting difficult dry, sunny banks or filling space in borders and rockeries. Plants hug the ground, meaning the weeds don't even get a look in! These long-lived hardy Geraniums are tough and last for years. The 'Jolly Jewel' series boasts a fruity selection of colours all with attractive veining to the petals and a darker centre to each bloom they barely rest their flower power from spring to late summer. Hardy Geraniums are great low maintenance plants and can also be grown in patio containers for long lasting displays. Height: 25cm (10"). Spread: 30cm (12").
More info
    • 3 x 9cm potted geranium plants

    • Despatch:
    •  
    • £19.99
    • Out of stock
    • 6 x 9cm potted geranium plants

    • Despatch:
    •  
    • £29.99
    • Out of stock

Hardy Geranium 'Foundlings Friend'

Hardy Geranium, Cranesbill

  • Unique flower patterning
  • Easy to grow
  • Performs no matter the weather

Tough as old boots, hardy Geraniums should be high on everyone's planting list. Discovered as a chance seedling, Geranium 'Foundling's Friend' is a stand out variety, offering the most unusual flowers among the species. Violet-blue petals are delicately patterned with deep-purple veining. This compact form will thrive in sunny borders, coping with periods of drought once established. Height and spread: 30cm (12").
More info
    • 1 geranium jumbo plug plant

    • Despatch: By end of October 2016
    •  
    • £9.99
    • 3 geranium jumbo plug plants

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

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").

 

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

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

    • Despatch: Within 28 days
    •  
    • £14.99

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").

 

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

    • Despatch: Within 28 days
    •  
    • £7.99
    • 2 x 1 litre potted veronica plants

    • Despatch: Within 28 days
    •  
    • £12.99

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").

 

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

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

    • Despatch: Within 28 days
    •  
    • £14.99

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").

 

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

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

    • Despatch: Within 28 days
    •  
    • £16.99

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").

 

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

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

    • Despatch: Within 28 days
    •  
    • £14.99

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").

 

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

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

    • Despatch:
    •  
    • £16.99
    • Out of stock

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").

 

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

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

    • Despatch:
    •  
    • £17.99
    • Out of stock