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 20 products.
 

Freesia 'Premium Collection'

Fabulous double Freesia flowers packed with that unmistakeable fresh fragrance! Freesia 'Premium Collection' combines some of the largest flowered varieties in a rainbow of summery colours. Grow Freesias in patio containers, sheltered borders and greenhouses for a perfumed display that will really tantalize the senses. Their strong arching stems make them perfect for adding to home-grown bouquets too! Height: 35cm (14"). Spread: 15cm (6"). More info
    • 20 freesia corms

    • Despatch: By end of November 2016
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    • £9.99
    • 40 freesia corms

    • Despatch: By end of November 2016
    • SAVE *£4.99  
    • £19.98 £14.99

Sempervivum 'Mixed' (Large Plant)

Houseleek

Superb evergreen succulents form dense rosettes of foliage which meld together to create a living carpet. Sempervivum come in a fabulous range of forms and colours, with some even covered in spidery webbing. In summer, mature rosettes may produce panicles of star-shaped flowers. Although individual rosettes die after flowering, they are swiftly replaced by small offsets which quickly fill the gap. Commonly known as Houseleeks, these hardy perennials are extremely drought tolerant once established - perfect for planting in wall crevices, rockeries and alpine troughs. Height: 8cm (3"). Spread: 30cm (12").

 

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

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

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

Chinese Foxglove

Rehmannia elata, Rehmannia angulata

  • Blooms from May to November
This colourful Chinese Foxglove is named for its foxglove-like flowers, and it will repeat bloom all through the summer - unlike digitalis - and with a much showier flower! Rehmannia makes a superb choice for sunny borders, containers or a cool greenhouse, adding a touch of the exotic to your garden from late spring through until autumn. Chinese foxgloves are best over-wintered in a protected position with a minimum temperature of 5°C. Height: 90cm (36"). Spread: 50cm (20").
More info
    • 3 Chinese foxglove Postiplug plants

    • Despatch: By end of August 2016
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    • £12.99
    • 6 Chinese foxglove Postiplug plants

    • Despatch: By end of August 2016
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    • £17.99

Tropaeolum speciosum

Flame Nasturtium, Flame Flower, Flame Creeper

Exotic, spurred blooms in bright, vermillion red appear throughout summer in a rich explosion of colour. The vibrant blooms are followed by spherical blue fruits set against a backdrop of attractive dark green foliage. Tropaeolum speciosum is an intriguing climbing perennial that prefers a cool, sheltered position. This sought after plant creates a spectacular sight when grown through mature shrubs or scrambling over low walls. Height: 3m (10'). Spread: 1.2m (4').
More info
    • 2 bare root tropaeolum speciosum plants

    • Despatch: By end of February 2017
    •  
    • £12.99
    • 4 bare root tropaeolum speciosum plants

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

Geranium 'GeRainbow™ Mixed'

Pelargonium, Ivy-leaved Geranium, Ivy-leaved Pelargonium

 Customer Rating
  • Best in class for trailing geraniums

The ever popular 'Super Balcons', are now available with brighter colours, bigger flowers, and even more vigour, for superb cascades of colour! These trailing ivy-leaf geraniums look incredible spilling from window boxes and hanging baskets. Low maintenance and incredibly long flowering, Geranium 'GeRainbow™ Mixed' is set to become the no. 1 trailing pelargonium. Trails to: 90cm (36"). Spread: 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.

To make the most of your displays, try our exclusive Tower Pot™, specially designed to enable plants to climb easily.

More info
    • 5 geranium jumbo plug plants

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 5 geranium jumbo plug plants + 1 tower pot pack

    • Despatch:
    • SAVE *£9.99  
    • £34.98 £24.99
    • Out of stock
    • 10 geranium jumbo plug plants

    • Despatch:
    • SAVE *£4.99  
    • £19.98 £14.99
    • Out of stock
    • 20 geranium jumbo plug plants

    • Despatch:
    • SAVE *£19.97  
    • £39.96 £19.99
    • Out of stock

Geranium 'Rosebud Collection'

Pelargonium, Rosebud Geranium, Ivy-leaved Geranium, Ivy-leaved Pelargonium

Captivating rosebud blooms open to reveal large clusters of fully double flowers on vigorous, trailing plants. Geranium 'Rosebud Collection' includes 5 varieties - 'Red Sybil', 'Pink Sybil', 'Black Rose', Blue Sybil' and 'White Rose'. These varieties have been specially selected because the blooms never open fully, but remain in a truly elegant rosebud formation. Their long flowering period and drought tolerance make these trailing Pelargoniums ideal for creating an enchanting display in window boxes, patio containers and hanging baskets that will last well into autumn. Trails to: 45cm (18"). Spread: 30cm (12").

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 - 1 of each variety

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 10 geranium jumbo plug plants - 2 of each variety

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

Geranium maderense

Giant Herb Robert, Madeira Cranesbill

  • RHS Award of Garden Merit
  • The palm tree geranium
Geranium maderense is a magnificent tender perennial. The Madeira Cranesbill is the largest of the Geranium species, and certainly one of the most impressive, reaching a height of 1.5m (4',9"). Although perennial, it often acts as a biennial, producing pretty magenta pink blooms in its second year. But you won't mind the wait - it will give you time to appreciate the exotic-looking, dissected, evergreen foliage that radiates from a stout central trunk. This spectacular RHS AGM species will need some winter protection so it is best grown in the conservatory or a large patio container which can be moved to a frost free position in winter. Height: 150cm (59"). Spread: 100cm (39").
More info
    • 1 x 12cm potted geranium plant

    • Despatch: By end of April 2017
    •  
    • £19.99
    • 2 x 12cm potted geranium plants

    • Despatch: By end of April 2017
    •  
    • £29.99

Geranium 'Custard Cream'

Pelargonium, Zonal Geranium, Zonal Pelargonium

  • The world's first true yellow geranium
For many years the elusive yellow geranium has been the holy grail of the plant world. There are plenty of dark cream varieties but few have captured that true yellow colour. Pelargonium enthusiasts will love Geranium 'Custard Cream' for its buttery yellow blooms and fabulous vigour. Created by the world's leading geranium breeder, this superb zonal pelargonium deserves a prominent place in your patio containers and borders this summer. Height: 30cm (12"). Spread: 25cm (10").
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
    • 1 x 10.5cm potted geranium plant

    • Despatch:
    •  
    • £12.99
    • Out of stock
    • 3 x 10.5cm potted geranium plant

    • Despatch:
    • SAVE *£19.98  
    • £38.97 £18.99
    • Out of stock

Geranium 'Swizzle Stick'

Pelargonium, Zonal Geranium, Zonal Pelargonium

Add some colour to your garden with this fuss-free zonal Pelargonium. Clusters of beautiful white flowers with a vivid-red, central splash are produced in abundance over a long flowering period. With its bushy foliage and unusual flower colours, Geranium 'Swizzle Stick' makes a fabulous choice for your patio containers. Height: 30cm (12"). Spread: 25cm (10").
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
    • 3 geranium jumbo plug plants

    • Despatch:
    •  
    • £9.99
    • Out of stock

Geranium 'Blushing Sophie'

Pelargonium, Zonal Geranium, Zonal Pelargonium

This pretty zonal geranium produces gorgeous, double pink blooms with a sweet apricot blush, on compact plants throughout summer. Geranium 'Blushing Sophie' has a lovely old fashioned appearance but is perfect for the modern patio, fitting neatly into beds, borders, window boxes and patio containers. Height: 40cm (16"). Spread: 35cm (14").
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:
    •  
    • £13.99
    • Out of stock
    • 10 geranium jumbo plug plants

    • Despatch:
    • SAVE *£8.99  
    • £27.98 £18.99
    • Out of stock

Geranium 'Evka'

Pelargonium, Pelargonium 'Penevro', Ivy-leaved Geranium, Ivy-leaved Pelargonium

  • The 'stand out' geranium from our trials
Masses of tiny, cream edged leaves contrast beautifully with the spectacular scarlet blooms of Geranium 'Evka'. The long, cascading stems of this trailing Ivy leaf geranium are perfect for a dramatic display in hanging baskets and window boxes. Height: 50cm (20"). Spread: 30cm (12").
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:
    •  
    • £11.99
    • Out of stock
    • 10 geranium jumbo plug plants

    • Despatch:
    • SAVE *£6.99  
    • £23.98 £16.99
    • Out of stock

Geranium 'Azalea-Flowered Collection'

Pelargonium, Ivy-leaved Geranium, Ivy-leaved Pelargonium

  • Incredible new azalea-flowered form
A dazzling collection of ivy leaved geraniums with flamboyant double flowers in shades of pink, burgundy and red, including a stunning bicolour variety. The trailing stems and dense, glossy green foliage makes Geranium 'Azalea-Flowered Collection' ideal for hanging baskets, patio containers and window boxes. Deadhead the flowers regularly to ensure lashings of vibrant colour throughout the summer months. Trails to: 35cm (14").
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:
    •  
    • £14.99
    • Out of stock
    • 10 geranium jumbo plug plants

    • Despatch:
    •  
    • £19.99
    • Out of stock