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 3 products.
 

Geranium 'Black Rose'

Pelargonium, Rosebud Geranium

The full, rounded buds of Rosebud Geranium 'Black Rose' resemble dainty roses when they first break open, then cluster together to form a pretty posy. This vigorous, trailing variety has the exceptional garden performance of other ivy-leaf geraniums, but their unique flower form truly sets them apart. With regular deadheading, they will spill from windowboxes, containers, and hanging baskets, blooming profusely throughout the summer. Trails to: 45cm (18").
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 5 geranium jumbo plug plants

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 10 geranium jumbo plug plants

    • Despatch:
    • SAVE *£2.99  
    • £19.98 £16.99
    • Out of stock

Rudbeckia occidentalis 'Green Wizard' (Large Plant)

Western Coneflower

A curious and extraordinary perennial that is very different from the flashy colours of other rudbeckias. With no obvious petals, the bright green sepals of Rudbeckia 'Green Wizard' surround a black central cone. This tall variety creates an interesting spectacle for the back of borders in late summer and makes an unusual fresh cut flower that is long lasting in water, or can used in dried arrangements. Easy to grow, quickly forming a good sized plant with plenty of lush green foliage, and always a talking point. Height: 120cm (47"). Spread: 60cm (24").

 

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

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

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

Pennisetum viridescens (Large Plant)

Fountain Grass

Fountain Grasses will always add a certain elegance to any garden, large or small. The evergreen leaves arch gracefully back to allow the tall stems of the flowerheads to push upwards. Atop each stem appear long, feathery plumes, each flushed with black, which will catch the wind and add movement to your display, or, if standing still will be an interesting and delicate architectural plant. Very easy to grow, Pennisetum viridescens, require very little looking after and can be used either as a specimen plant or as part of a grasses collection. Height: 100cm (39"). Spread: 100cm (39").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 3.6 litre potted pennisetum plant

    • Despatch: By end of July 2016
    •  
    • £12.99
    • 2 x 3.6 litre potted pennisetum plants

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