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.



We have found 445 products.
 

Gentiana cruciata (Large Plant)

Crosswort Gentian

The Crosswort Gentian has the accolade of being the easiest Gentian to grow; it is unfussy, free-flowering and excellent for dappled shade borders. Plants are short at 30cm (12") and feature those classic Gentian-blue flowers at the tips of each stem.

Plants of Gentiana cruciata are tough, rabbit-proof and can be used as an edging plant, in containers or in the alpine rockery border. Flowers appear on this easy to grow Gentian from late summer onwards. Height and spread: 30cm (12").

More info
    • 1 x 8cm potted plant

    • Despatch: By end of April 2015
    •  
    • £9.99
    • 2 x 8cm potted plants

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

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’).

More info
    • 1 x 1 litre potted plant

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

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

Gypsophila cerastioides (Large Plant)

Mouse-ear gypsophila

A small type of Gypsophila which is drought tolerant, tough and produces endless supplies of white flowers, which are loved by butterflies.

The Mouse Eared Gypsophila is good for alpine gardens, rockeries, patio containers, troughs or for growing in gaps in walls and paving. The tufted, mounding plants produce flowers from spring to summer. Height: 5cm (2"). Spread: 15cm (6").

More info
    • 1 x 1 litre potted plant

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

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

Helenium 'Moerheim Beauty' (Large Plant)

Helen's Flower, Sneezeweed

Don’t get caught out with a colour-less, late summer garden - Helenium actually flower much later in the summer, so are excellent for extending the season of colour! Helenium ‘Moerheim Beauty’ is a choice variety, with copper-red flowers.

This hardy perennial is loved by bees and butterflies, and is the proud holder of an RHS Award of Garden Merit, so comes highly recommended as a reliable garden plant. Sneezeweed is tall, and is great for filling gaps in borders and adding height. It looks particularly good with grasses. Height: 90cm (36"). Spread: 60cm (24").

More info
    • 1 x 3 litre potted plant

    • Despatch: By end of April 2015
    •  
    • £9.99
    • 2 x 3 litre potted plants

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

Daylily 'Atlas' (Large Plant)

Hemerocallis

The Daylily is a prized garden specimen; plants are hardy, tough, usually evergreen, and produce luxurious flowers in a rainbow of colours. Daylily ‘Atlas’ has lemon-yellow flowers, which only last for a day each, but are produced in succession.

Plant Daylilies into cottage garden borders or large patio containers. Hemerocallis are excellent for beginners, small gardens, and will establish and grow quickly. Height: 75cm (30"). Spread: 60cm (24").


Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 x 1 litre potted plant

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

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

Daylily 'Crimson Pirate' (Large Plant)

Hemerocallis

Daylily plants are pretty much bulletproof; plants are hardy, resilient, will grow in most soils, are evergreen, and will produce glorious flowers many colours. Daylily ‘Crimson Pirate’ has pillar-box red flowers, which last a day each, but are borne on plants all summer long.

Use Hemerocallis plants in cottage garden borders or large patio pots. Daylilies are good for beginners and small gardens, and are simply very easy to grow. Height: 75cm (30"). Spread: 60cm (24").


Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 x 1 litre potted plant

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

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

Daylily 'Stella in Red' (Large Plant)

Hemerocallis

They always say daylilies are un-killable, and we think that’s quite accurate; plants are hardy, very tough, will grow in most positions, producing lily-like flowers. Daylily ‘Stella in Red’ has ruby-red, gently fragrant flowers, which last a day each, but are borne on compact, grassy plants all through the summer. Plant up Hemerocallis plants into mixed garden borders or large pots. Daylilies are ideal for beginners and smaller gardens, are rabbit resistant, and last many years. Height: 30cm (12") and Spread: 45cm (18").

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 x 1 litre potted plant

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

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

Heuchera 'Melting Fire' (Large Plant)

Coral Flower, Coral Bells

The deeply curled foliage of Heuchera hybrida 'Melting Fire' emerges a rich blood red colour and matures to a dark shade of purple-red. This eye-catching coral flower is strong growing, forming large clumps of foliage with good weather tolerance. Admired for their long season of interest, Heucheras are ideal for adding colourful, semi-evergreen foliage to borders and mixed containers. Height and spread: 40cm (16"). More info
    • 1 x 2 litre potted plant

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

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

Heuchera villosa 'Palace Purple' (Large Plant)

Heuchera sanguinea 'Palace Purple', Coral Flower, Coral Bells

Neat mounds of distinctive purple foliage make Heuchera ‘Palace Purple’ a particularly popular Coral Flower. The glossy, semi-evergreen leaves of this striking hardy perennial provide year round colour, forming drifts of ground cover and adding a bright splash to winter containers. The delicate summer sprays of pale pink flowers make dainty cut flowers and attract bees to their nectar rich blooms. Height and spread: 60cm (24"). More info
    • 1 x 2 litre potted plant

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

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

Heuchera 'Stormy Seas' (Large Plant)

Coral Flower, Coral Bells

Heuchera are an excellent choice for easy to grow ground cover in difficult spots in the garden; plants are super tough and easy to grow. Heuchera ‘Stormy Seas’ has maroon-red foliage, with green undersides, with creamy-white bell flowers, on tall spikes during the summer.

Heuchera can be grown in perennial borders, bedding schemes, or in mixed summer and autumn containers and baskets. Heuchera are versatile evergreens for growing in either sun or part shade. Height and Spread: 40cm (16").

More info
    • 1 x 2 litre potted plant

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

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

Hosta fortunei 'Albomarginata' (Large Plant)

Plantain Lily

Hosta are one of the best shade-loving plants, thriving in moist, damp, dark areas, but also coping well with dry shade. The bold, colourful foliage is robust and weatherproof. Plants are quick-growing, clump-forming and are maintenance-free.

Hosta fortunei ‘Albomarginata’ has particularly eye-catching leaves, which are ribbed, puckered and in edged in creamy-white. During the height of summer, a surprise display of showy, sometimes fragrant, flowers. Height: 55cm (22"). Spread: 100cm (39").

More info
    • 1 x 2 litre potted plant

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

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

Hosta fortunei var. aureomarginata (Large Plant)

Plantain Lily

Hostas are very useful shade-loving plants, which can thrive in moist, damp, dark borders, or difficult, dry shady borders. Plants are quick-growing, clump-forming and the bold leaves are colourful, robust and weatherproof.

Hosta fortunei ‘Aureomarginata’ has ribbed leaves, in pure green and edged in golden-yellow. During the summer, purple, bell-shaped flowers appear on showy, 90cm (36") stems. Excellent ground cover for shady borders. Height: 55cm (22"). Spread: 100cm (39").

More info
    • 1 x 2 litre potted plant

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

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