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 6 products.
 

Blechnum brasiliense 'Volcano'

Dwarf Brazilian Tree Fern, Hard Fern

 Customer Rating
  • Hardy down to -5c in the UK
Are Dicksonia tree ferns too large or expensive for you? We've found the answer - try the dwarf Brazilian tree fern instead! Blechnum brasiliensis 'Volcano' is an exciting new find for the home gardener, only recently introduced to the UK, but sure to be the next big thing! Compact plants lend themselves well to growing in patio pots; and throw up huge fronds up to 70cm (28") tall. The young fronds unfurl in a bronze volcanic hue turning a shiny green as they open. Over time, this fern will form a small trunk, growing to around 30cm tall in 10 years. A relative of our native Deer Fern, this fern thrives in low light, so it's perfect for giving an exotic touch to your home and garden. Despite its tropical origins, Blechnum brasiliense is hardy enough to be grown in most UK gardens, tolerating temperatures down to -5C (23F) but will appreciate a sheltered spot and some winter protection. Height: 90cm (36"). Spread: 70cm (28").
More info
    • 1 x 9cm potted blechnum plant

    • Despatch: By end of July 2017
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    • £14.99
    • 2 x 9cm potted blechnum plants

    • Despatch: By end of July 2017
    •  
    • £19.99

Gunnera manicata (Large Plant)

Chilean Rhubarb

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 March 2017
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    • £9.99
    • 1 x 18 litre potted gunnera plant

    • Despatch:
    •  
    • £52.99
    • Out of stock
    • 1 x 5 litre potted gunnera plant

    • Despatch: Within 28 days
    •  
    • £23.99
    • 2 x 1 litre potted gunnera plants

    • Despatch: By end of March 2017
    •  
    • £16.99
    • 2 x 18 litre potted gunnera plants

    • Despatch:
    •  
    • £79.99
    • Out of stock
    • 2 x 5 litre potted gunnera plants

    • Despatch: Within 28 days
    •  
    • £35.99

Rose Lily Grass

Rhodohypoxis

Dainty, jasmine-like flowers in two shades of pink erupt in profusion above short clumps of lance-shaped foliage in late spring, followed by flushes of flowers throughout the summer. Giving a long-lasting display throughout the summer months, these starry gems also have a delicate sweet fragrance. Each Rose Lily Grass plug plant contains more than one bulblet for prolific flowering in borders, rock gardens and containers. Although fully hardy, Rhodohypoxis will need protection from winter wet. Height and spread: 15cm (6"). More info
    • 1 Rose Lily Grass jumbo plug plant

    • Despatch:
    •  
    • £14.99
    • Out of stock
    • 3 Rose Lily Grass jumbo plug plants

    • Despatch:
    •  
    • £19.99
    • Out of stock

Waldsteinia ternata (Large Plant)

Siberian Waldsteinia

A groundcover semi-evergreen perennial that forms a dense mat of shiny purple-green leaves that somewhat resemble those of a strawberry. Waldsteinia ternate are shade loving plants and from early spring until late summer, small yellow saucer-shaped flowers appear. Uses vary from covering large or small areas as these plants spread steadily but are not considered invasive. Once established, Waldsteinia become drought tolerant and, if a mild winter is forecast, may remain evergreen too. Height: 10cm (4"). Spread: 100cm (39").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 9cm potted waldsteinia plant

    • Despatch: Within 28 days
    •  
    • £7.99
    • 2 x 9cm potted waldsteinia plants

    • Despatch: Within 28 days
    •  
    • £11.99

Cardiocrinum giganteum

Giant Lily, Lilium giganteum

This astonishing hardy perennial makes a fascinating talking point. The tall stems of the Giant Himalayan Lily tower to 2.5m (98") or more in an awe-inspiring display. With maturity Cardicrinum giganteum is topped with a crown of white Lily-like blooms from June the July. The trumpet shaped flowers have a powerful fragrance, attracting plenty of pollinating insects, before they are replaced by interesting oblong seedpods in late summer. The Giant Himalayan Lily may take 3 or more years to flower but is well worth the wait.

This fascinating plant is monocarpic, meaning that it dies after flowering - but don't be put off, it leaves behind offsets that will flower in 3 to 5 years time. Cardiocrinum giganteum is a most unusual plant that will add a real focal point to lightly shaded exotic gardens and woodland borders. Height: 250 cm (98"). Spread: 45cm (18").

More info
    • 1 x 13cm cardiocrinum potted plant

    • Despatch:
    •  
    • £14.99
    • Out of stock
    • 2 x 13cm cardiocrinum potted plants

    • Despatch:
    •  
    • £24.99
    • Out of stock

Potted Plant Collection

Acer, Canna, Lilac, Eryingium

Our potted plant collection has something for almost every spot in the garden. Colourful Acers will brighten dappled shady spots with their vibrant autumn colours, while the Canna will bring an exotic feel to damp borders and pond edges. Eryingium is perfect for filling a gap in a sunny border. These quality plants are all supplied in pots ready to be planted out now. (Canna's are best grown on in frost free conditions over winter before planting out in spring).

  • Collection includes:
  • Canna 'Tropicanna Gold' - Luxuriant large leaves streaked with gold make a magnificent feature even before the tangering coloured flowers appear.
  • Syringa 'Dwarf Pink' - From early summer, a profusion of frothy pink blooms will smother this pretty dwarf lilac.
  • Acer palamatum 'Osakazuki Seedling' - This striking Japanese Maple is well regarded for its intense autumn colours.
  • Acer palmatum 'Atropurpureum' - A classic Japanese Maple producing gorgeous, purple-red foliage that colours to brilliant, fiery red in autumn.
  • Eryngium 'Neptune's Gold' - This unique specimen still retains the iconic blue flower tones of Eryngium, but also takes on a stunning golden sheen.
More info
    • 5 potted plants - 1 of each variety

    • Despatch:
    •  
    • £50.00
    • Out of stock