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, perennials live for 2 or more years and flower every year. Biennial plants 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 14 products.
 
Viola 'Denim' - Part of the Alan Titchmarsh Collection

Viola 'Denim'

Pansy

 Fabulous flower power in deep velvety shades of inky-blue that add spring colour without being garish. This lovely variety has a pleasing uniform habit wherever you plant it - in beds, containers, baskets or windowboxes. With good tolerance to heat and cold, Viola ‘Denim’ makes a superb winter pansy for brightening those dark days from January, and well into spring. Height: 15cm (6"). Spread: 20cm (8").

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

 More info
    • 48 plugs

    • Despatch: By end of August 2013
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    • £19.98 £13.99
Ipomoea 'Fragrant Sky'

Morning Glory 'Fragrant Sky'

Ipomoea lindheimeri
  • NEW in 2013
A hardy perennial morning glory with a sweet fragrance too! Scrambling Ipomoea lindheimeri looks just like its annual cousins but you can look forward to it returning year after year. Morning Glory ‘Fragrant Sky’ produces beautiful lavender blue trumpet blooms against a backdrop of attractive lobed foliage that makes a lovely informal display. Perfect for growing over obelisks, adding height and structure to cottage garden borders. Height: 90cm (35"). Spread: 30cm (12"). More info
    • 1 x 10cm potted plant

    • Despatch: June - May 2013
    • SAVE £4.00  
    • £9.99 £5.99
    • 2 x 10cm potted plant

    • Despatch: June - May 2013
    • HALF PRICE  
    • £19.98 £9.99
Anemone 'Wild Swan'

Anemone 'Wild Swan'

Windflower
  • Award winning new anemone, a Chelsea champion
A truly beautiful perennial, and winner of the RHS Chelsea Flower Show 2011 Plant of the Year title. Trialled over a 10 year period, Anemone ‘Wild Swan’ is a cross between early and late flowering anemones and as such, the unique flowers bloom intermittently from April right through to the autumn. Each elegant white flower is backed with pretty blue streaks that look particularly eye catching when the flowers nod closed in the mornings and evenings. A superb perennial for borders and woodland gardens with a neat, compact habit. Height: 45cm (18”). Spread: 60cm (24”) More info
    • 1 x 7cm potted plant

    • Despatch: By end of September 2013
    •  
    • £12.99
    • 2 x 7cm potted plants

    • Despatch: By end of September 2013
    •  
    • £18.99
Lavatera 'Bluebird'

Lavatera 'Bluebird'

Mallow
  • NEW in 2013
  • World exclusive
Lavatera 'Bluebird' is the result of 1000's of selections, resulting in the first true blue Mallow! Exotic saucer-shaped blooms crowd the stems of this well branched, hardy perennial to create a lovely informal display that’s perfect for patio containers and cottage garden borders. Once established this tough little mallow needs little maintenance and will even tolerate short periods of drought. Height and spread: 90cm (36"). More info
    • 1 jumbo plug

    • Despatch: By end of June 2013
    •  
    • £9.99
    • 3 jumbo plugs

    • Despatch: By end of June 2013
    • HALF PRICE  
    • £29.97 £14.99
Buddleja ?Colour Fountain Blue?

Buddleja 'Colour Fountain Blue'

Buddleia, Butterfly Bush
  • WORLD EXCLUSIVE
  • Buddleja with the longest flower spike
Buddlejas needn’t take over your garden - this one is far from invasive with a neat compact growth habit that fits nicely into borders and containers. The branching stems of Buddleja ‘Colour Fountain Blue’ bear fragrant, narrow, lavender blue flowers that reach up to 30cm (12") long. Like all buddleja plants, the blooms are irresistible to butterflies and other pollinating insects. Height and spread: 90cm (35"). More info
    • 3 jumbo plugs

    • Despatch: By end of June 2013
    •  
    • £14.99
    • 6 jumbo plugs

    • Despatch: By end of June 2013
    • SAVE £9.99  
    • £29.98 £19.99
Scabious 'Blue Jeans'

Scabious 'Blue Jeans'

Scabiosa, Pincushion Flower

 An abundance of blue pincushion scabious flowers will attract bees and butterflies throughout summer. The tall, wiry stems can also be cut to create a pretty display indoors. Scabiosa ‘Blue Jeans’ blends well among cottage garden borders, where they look particularly effective planted in large drifts. Height and spread: 45cm (18"). More info
    • 6 plugs

    • Despatch: By end of August 2013
    •  
    • £5.99
    • 12 plugs

    • Despatch: By end of August 2013
    •  
    • £8.99
Agapanthus 'L'Amour Bleu'

Agapanthus 'L'Amour Bleu'

African Blue Lily
  • NEW in 2013
Unlike most African Lilies, this repeat-flowering variety will bloom all summer long, replacing faded blooms with fresh new buds later in the season. The deep blue flowers crown strong upright stems from early June to September above neat clumps of strap like foliage. Agapanthus 'L'Amour Bleu' is a particularly compact variety that makes a superb addition to patio containers or the front of sunny borders. Height: 75cm (30"). Spread: 45cm (18"). More info
    • 1 jumbo plug

    • Despatch: November - May 2013
    •  
    • £9.99
Verbena Bonariensis

Verbena bonariensis

Glandularia, Verbena patagonica
Tightly clustered florets form glowing lavender flower heads that float atop stiffly upright, branching stems. The long lasting blooms of Verbena bonariensis attract clouds of bees and butterflies. This perennial verbena has enjoyed a resurgence in popularity in recent years, associating beautifully with grasses for a tranquil planting scheme, or adding a touch of architectural style to the back of herbaceous borders. This elegant perennial is at its most effective when planted in large swathes. Height: 200cm (79”). Spread: 45cm (18”). More info
    • 3 jumbo plugs

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 12 plugs

    • Despatch: By end of June 2013
    •  
    • £7.99

Geranium 'Rozanne'

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
    • 3 jumbo plugs

    • Despatch: By end of June 2013
    •  
    • £14.99
    • 6 jumbo plugs

    • Despatch: By end of June 2013
    •  
    • £24.98
Pinks 'Endless Love Lilac Eye'

Dianthus 'Endless Love Lilac Eye'

Pink
If you're looking for a reliable, frost resistant perennial with a beautiful sweet fragrance, then look no further! Dianthus ‘Endless Love Lilac Eye’ produces masses of large, Lilac pink, filigree-style flowers with a deep maroon red centre and the characteristic perfume that you would expect from scented pinks. Perfect for edging, low patio pots and mixed borders, these superb dianthus flowers make long lasting, romantic flower arrangements. Height and spread: 30cm (12”).

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

Read Michael Perry's blog: Make a change to your plant choices - 2

 More info
    • 3 Postiplugs

    • Despatch: By end of June 2013
    •  
    • £6.99
Agapanthus Headbourne Hybrids

Agapanthus 'Headbourne Hybrids'

African Blue Lily

 Dark, steely-blue buds perched on firmly upright stems give way to striking lavender-blue, trumpet shaped blooms. Agapanthus ‘Headbourne Hybrids’ will flower freely from their second year, growing into dense, established clumps of strap-like, dark green foliage. In summer, this impressive perennial lends its stature to borders and patio containers, where their architectural seed heads continue the display well into autumn. The large spherical blooms are also magnificent in cut flower displays. Hardy in many parts of the UK, where good drainage and protective winter mulch is provided. Height: 90cm (36”). Spread: 45cm (18”). More info
    • 6 bareroot plants

    • Despatch: By end of November 2013
    •  
    • £10.99

Knautia arvensis

Field Scabious, Wildflower
Glorious scabious-like, pin cushion blooms are borne on the lax stems of this wildflower, in soft shades of lilac-blue. The nectar-rich blooms are a magnet for bees and butterflies and are produced in abundance from July to early autumn. Grow field scabious in borders and wildlife gardens where their tall swaying stems will create an informal display, or use them as cut flowers for a vase indoors. Height: 1.5m (5’). Spread: 45cm (18"). More info
    • 3 Postiplugs

    • Despatch: By end of April 2014
    •  
    • £8.99