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 82 products.
 

Salvia x jamensis 'Hot Lips' (Large Plant)

Salvia microphylla 'Hot Lips'

Spice up your summer patio pots with Salvia 'Hot Lips'. Naturally bushy plants boast eye-catching flower spikes with open-mouthed, bicolour blooms. In particularly hot weather look out for individual flowers in solid red or solid white. The aromatic foliage has a fine blackcurrant fragrance that only adds to its charm. This showy ornamental sage is perfect for cottage garden borders and containers, or incorporated into bedding schemes for a vibrant summer display. Although perennial, this half hardy Salvia will appreciate some protection from winter weather. Height: 90cm (35"). Spread: 60cm (24").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
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    • 1 x 2 litre potted salvia plant

    • Despatch: Within 28 days
    •  
    • £9.99
    • 2 x 2 litre potted salvia plants

    • Despatch: Within 28 days
    •  
    • £16.99

Heteropappus meyendorfii

Blue Chrysanthemum

  • Hundreds of electric blue blooms
Like a little blue Chrysanthemum, this fabulous plant produces an abundance of blooms from late summer, and continues throughout autumn. Heteropappus meyendorfii is a colourful, late flowering half hardy perennial with a lovely spreading habit. This pretty little daisy is perfect for filling gaps in containers and late summer borders when other plants are beginning to fade. Height: 30cm (12"). Spread: 45cm (18").
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    • 5 heteropappus Postiplug plants

    • Despatch: By end of April 2017
    •  
    • £8.99
    • 10 heteropappus Postiplug plants

    • Despatch: By end of April 2017
    • SAVE *£4.99  
    • £17.98 £12.99

Strelitzia 'Bird of Paradise'

Strelitzia

Bring a touch of the tropics to your garden with the exotic blooms of the Bird of Paradise plant. This striking plant makes a great seasonal summer addition, plunged into sunny borders or kept in a container on a sunny patio. Protected over winter plants will reach an impressive size, rivalling any plants you've seen on your sunshine holidays. As temperatures drop moving into autumn, bring the plant inside for a touch of summer all winter long. The stately blue green, deeply ribbed foliage makes an attractive foil for their magnificent flowers which resemble birds with bright plumage. The striking blooms will make for an impressive talking point on the patio! Height: 210cm (83"). Spread 100cm (36") More info
    • 1 x 13cm potted strelitzia plant

    • Despatch: Within 28 days
    •  
    • £14.99
    • 2 x 13cm potted strelitzia plants

    • Despatch: Within 28 days
    •  
    • £24.99

Aristolochia elegans

Aristolochia littoralis, Dutchman's Pipe

A show stopping half hardy climber for the summer garden or conservatory. The blooms of the Dutchman's Pipe are highly sought after and we are pleased to have sourced this stunning Brazilian vine for all you would-be plant hunters. The exotic 7.5cm (3") flowers take on a unique rich purple-brown hue overlaid with a creamy white patina and exude a soft fragrance. The soft lush foliage is over-sized and heart-shaped - everything about this plant is spectacular. Aristolochia plants will enjoy a warm conservatory over winter, but as you can see, a little fuss is well worth the effort! Height: up to 8m (26'). Spread: 100cm (3'). More info
    • 1 x 9cm potted aristolochia plant

    • Despatch: Within 28 days
    •  
    • £12.99
    • 2 x 9cm potted aristolochia plants

    • Despatch: Within 28 days
    •  
    • £19.99

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: By end of March 2017
    •  
    • £9.99
    • 10 geranium jumbo plug plants

    • Despatch: By end of March 2017
    • SAVE *£2.99  
    • £19.98 £16.99

Geranium 'Octavia Hill'

Pelargonium, Zonal Geranium, Zonal Pelargonium

Enormous heads of scarlet blooms with exceptional weather resistance make these giant geraniums stand out from the rest! Raised from cuttings, Geranium 'Octavia Hill' has increased vigour and abundant flowers that persist throughout summer if deadheaded regularly. Fantastic for creating dramatic patio displays or filling gaps in borders. Height: 50cm (20"). 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.
More info
    • 5 geranium jumbo plug plants

    • Despatch: By end of March 2017
    •  
    • £9.99

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 'Appleblossom Rosebud'

Pelargonium, Zonal Geranium, Zonal Pelargonium

  • 18 weeks of beautiful rosebud flowers
Captivating rosebud blooms open to reveal large, bicoloured clusters of fully double, pink and white flowers. This delightful zonal geranium has retained its popularity since the Victorian age and remains admired and sought after today. The long flowering period and drought tolerance of Geranium 'Appleblossom' make it ideal for creating an enchanting display in borders and patio containers that will last well into autumn. Height: 40cm (16"). Spread: 25cm (10").
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    • 1 x 10.5cm potted geranium plant

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

    • Despatch: By end of March 2017
    • SAVE £3  
    • £12.99 £9.99
    • 3 x 10.5cm potted geranium plants

    • Despatch:
    •  
    • £19.99
    • Out of stock
    • 6 geranium jumbo plug plants

    • Despatch: By end of March 2017
    • SAVE £5  
    • £19.99 £14.99

Geranium 'Pink Sybil'

Pelargonium, Rosebud Geranium

The full, rounded buds of Rosebud Geranium 'Pink Sybil' 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: By end of March 2017
    •  
    • £9.99
    • 10 geranium jumbo plug plants

    • Despatch: By end of March 2017
    • SAVE *£2.99  
    • £19.98 £16.99

Geranium 'Blue Sybil'

Pelargonium, Rosebud Geranium

The full, rounded buds of Rosebud Geranium 'Blue Sybil' 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: By end of March 2017
    •  
    • £9.99
    • 10 geranium jumbo plug plants

    • Despatch: By end of March 2017
    • SAVE *£2.99  
    • £19.98 £16.99

Geranium 'Red Sybil'

Pelargonium, Rosebud Geranium

The full, rounded buds of Rosebud Geranium 'Red Sybil' 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"). Geranium 'Red Sybil' is protected by Plant Breeder's Rights - propagation prohibited.
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

Chrysanthemum 'Bumper Pack'

Subtle autumnal shades harmonise with striking, bold colours in this outstanding chrysanthemum collection. A bold combination of tall, half hardy varieties with reflexed and incurved petals, mixed with lower growing, hardy chrysanthemums that form neat mounds of colour. Savour the colourful shades of these magnificent perennials in your autumn garden when summer bedding plants have faded away. Their vibrant blooms also make excellent and long lasting cut flowers. Height: Up to 90cm (36"). Spread: 45cm (18").


Chrysanthemum collection contains 5 plants each of:
Incurved Mixed - Sturdy stems bear rounded blooms with magnificent incurved petals.
Hardy Patio Mixed - Well branched plants produce rounded domes of colour.
Decorative Mixed - Backward facing petals create colourful flower heads on strong stems.


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


Useful links:

Companion Planting

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    • 15 chrysanthemum Postiplug plants - 5 of each variety

    • Despatch:
    •  
    • £14.99
    • Out of stock