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 7 products.
 

Comfrey 'Bocking 14'

Symphytum x uplandicum 'Bocking 14', Russian Comfrey

Grow your own soil conditioner! Comfrey 'Bocking 14' contains high levels of basic NPK nutrients and because it is a sterile hybrid, it won't self seed all over your garden.


The nutrient rich foliage of comfrey can be used as a compost activator, mulch, or soaked in barrels of water for 3 to 5 weeks to make a useful liquid feed for tomatoes and beans. Scatter the wilted leaves throughout potato trenches just before planting, to fertilise the crop and improve their flavour! Once established, this quick growing plant can be cut 3 or 4 times throughout the growing season, for a constant supply of nutrient rich, organic, comfrey fertiliser. Height: 100cm (40”). Spread: 75cm (30”).


Useful links:

How to grow herbs

More info
    • 5 root cuttings

    • Despatch: By end of March 2015
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    • £11.99

Chrysanthemum 'Hardy Patio Mixed'

  • NEW for 2012

As the days shorten, these shimmering chrysanthemums come into their own. Bright colours and long-lasting blooms give a real boost to the autumn garden when many things are looking tired. This collection of hardy perennial patio Mums will reward you with rounded domes of colour from September right through until the first frosts. Superb for growing in borders and containers, and the sturdy stems make excellent cut flowers too. Our young plants are supplied as a mix of 4 named varieties. Height: 100cm (39”). Spread: 60cm (24”).


Companion planting: Try growing Chrysanthemums with chives, whose aromatic leaves will deter aphids.


Useful links:

Companion Planting

More info
    • 5 Postiplug plants - 1 of each colour

    • Despatch: By end of March 2015
    •  
    • £9.99

Dierama Collection

Angel's Fishing Rod

  • New in 2014

Clusters of delicate bell shaped flowers dangle from impossibly slender stems that arch and tremble in the breeze. From July, the elegant blooms rise above clumps of slender, semi-evergreen, grass like foliage before giving way to attractive seedheads in late summer. Dierama is a truly graceful hardy perennial and makes a most beautiful addition to cottage garden borders, adding movement and fluidity to planting schemes. Often referred to as Angel’s Fishing Rod, it looks particularly attractive when overhanging water. Height: 100cm (39"). Spread: 45cm (18").

  • Collection comprises:
  • Dierama argyruem - Dazzling white bell shaped flowers that dangle from arching stems.
  • Dierama ‘Blackberry Bells’ - Deep purple pink blooms on wiry stems.
  • Dierama erectum - Stiffer stems filled with outward facing blooms, rather than pendulous flowers.
More info
    • 3 x 9cm potted plants

    • Despatch: By end of March 2015
    • HALF PRICE  
    • £16.99 £8.49
    • 6 x 9cm potted plants

    • Despatch: By end of March 2015
    • HALF PRICE  
    • £24.99 £12.49

Achillea filipendulina 'Coronation Gold' (Large Plant)

Yarrow

One of the very best herbaceous perennials for a mixed border, Achillea is easy to grow and a low maintenance plant. ‘Coronation Gold’ is a popular variety, which has flat heads of golden-yellow flowers over a long summer period.

Achillea loves a hot, sunny border and will add colour to your summer garden for a minimum of effort. The flower heads are incredibly eye-catching and plants are quick to establish, filling a gap in the border. Height: 1m (39"). Spread: 50cm (20").

More info
    • 1 x 1 litre potted achillea plant

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

    • Despatch:
    •  
    • £16.99
    • Out of stock

Agapanthus 'Regal Beauty' (Large Plant)

African Blue Lily

The largest flower heads of any African Lily. Each globe of ‘Regal Beauty’ is almost 30cm (12") in diameter, and is made up of hundreds of inky-blue florets. Agapanthus is robust, easy to grow and long-lasting when planted in a mixed perennial border. African Lilies can also be grown in patio pots.

‘Regal Beauty’ has been selected for its enormous flower heads of almost a foot across, it’s the perfect opportunity to show off to your gardening friends! Plants are a little less hardy than other Agapanthus, so may need some winter protection. Height: 1m (39"). Spread: 50cm (19").

More info
    • 1 x 3 litre potted agapanthus plant

    • Despatch:
    •  
    • £13.99
    • Out of stock
    • 2 x 3 litre potted agapanthus plants

    • Despatch:
    •  
    • £22.99
    • Out of stock

Crocosmia 'Lucifer' (Large Plant)

Montbretia

Tall arching stems drip with fiery red trumpets above crimped, sword-like foliage. Crocosmia ‘Lucifer’ is well loved for its late summer display that erupts in a blaze of colour as other border perennials begin to fade. This RHS AGM variety is renowned for its vigour and resilience, adding structure and height to sunny herbaceous borders. The tall stems make eye-catching cut flowers too. Height: 100cm (39"). Spread: 10cm (4”). More info
    • 1 x 1 litre potted plant

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

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

    • Despatch:
    •  
    • £16.99
    • Out of stock
    • 2 x 2 litre potted plants

    • Despatch:
    •  
    • £16.99
    • Out of stock

Liatris spicata (Large Plant)

Liatris callilepis, Gayfeather

A showy, yet easy to grow plant, Liatris spicata offers plumes of mauve florets, which make a colourful display in late summer. Plants are excellent for attracting clouds of bees and butterflies to the nectar rich flowers.

Gayfeather as it is commonly known, is a resilient and undemanding perennial for almost any part of the garden. The blooms also make a bold cut flower for vases indoors. Height: 150cm (60"). Spread: 45cm (18").

More info
    • 1 x 2 litre potted plant

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

    • Despatch:
    •  
    • £16.99
    • Out of stock