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.


For beautiful summer flowers browse our range of annual plants.



We have found 596 products.
 

Trollius 'Dancing Flame'

Globeflower

  • New in 2015
Add some heat to your border this autumn with Trollius 'Dancing Flame'. This Globeflower has everything you'd want from a border perennial; contained vigour, long flowering habit, care-free attitude, and years of garden performance! The glorious orange blooms just keep on coming right though early summer for 8 weeks of vibrant colour. This hardy herbaceous perennial thrives in moist soils but will cope with drought conditions once established. Height: 60cm (24"). Spread: 50cm (20").
More info
    • 1 x 9cm potted trollius plant

    • Despatch: By end of August 2015
    •  
    • £11.99
    • 2 x 9cm potted trollius plants

    • Despatch: By end of August 2015
    •  
    • £17.99

Perennial Fragrant Collection

  • New in 2015

A colourful mix of hardy perennials, all chosen for their fragrance and flower power. Drop them into gaps in the border or fill a whole new bed with this autumn planting perennial collection. There's something for every part of the garden in this elegant mix, which has been hand selected to guarantee colour and scent in the garden from June right though to the end of September. These hardy garden plants return each year to give a bigger and better display than the last - the perfect low maintenance option for high-end results.


  • Perennial Fragrant Collection includes:
  • Agastache foeniculum - Silvery-green foliage which is scented unmistakenly of aniseed.
  • Monarda 'Bergamo' - Deliciously aromatic foliage and whorls of spidery pink blooms.
  • Oenothera 'Apricot Delight' - Tightly scrolled buds open in palest lemon, maturing to yellow, apricot and finally salmon-pink.
  • Nepeta 'Hot Pink' - Pink flowered Catmint with pungent, aromatic foliage.
  • Dianthus 'Bananaberry Fizz' - Rich, clove-scented, double blooms in lemaon and magenta.
  • Salvia 'New Dimension Blue' - Intense violet blue flower spikes above aromatic foliage.

Powerliner® plugs are well established, mature plugs which can be potted on or can be planted straight into the border or containers. Each plug module is 6.5cm in diameter.
More info
    • 6 Powerliner plug plants - 1 of each variety

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 12 Powerliner plug plants - 2 of each variety

    • Despatch: By end of September 2015
    •  
    • £14.99

Polyanthus 'Most Scented Mix'

Primula

  • The most scented polyanthus
We've sniffed all the polyanthus we could find to be able to make up this exclusive mix for you! Each fresh colour has a lovely, strong fragrance, to bring you a true scent of spring. From late winter, these vigorous perennials produce plenty of flowers on short, stocky stems, above neat rosettes of lush foliage. Fill all your pots and borders with Polyanthus 'Most Scented Mix' for a riot of scent and colour even on the dreariest winter days! Height and spread: 25cm (10")..

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

More info
    • 36 polyanthus plug plants

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 72 polyanthus plug plants

    • Despatch: By end of September 2015
    •  
    • £14.99

1st Year Flowering Perennial Collection

  • New in 2015
An essential mix of hardy herbaceous perennials, all selected to bring big impact to your garden in their first year, and many more to come. This classic combination of cottage garden staples offers four months of continual floral colour from early summer into autumn, which gets better and bolder as the years go by - just perfect for adding shape and structure to your planting displays. There's something for every part of the border too. Set the towering spires of Digitalis 'Dalmatian' and Hollyhock 'Halo' at the back of your designs behind Poppy 'Fruit Punch' and Scabious 'Beaujolais Bonnets'. Front the display with Gaillardia 'Mesa Peach' and Geum 'Blazing Sunset' for a tiered show of lasting shape and colour.

Powerliner® plugs are well established, mature plugs which can be potted on or can be planted straight into the border or containers. Each plug module is 6.5cm in diameter.
More info
    • 6 Powerliner plug plants - 1 of each variety

    • Despatch: By end of September 2015
    •  
    • £8.99
    • 12 Powerliner plug plants - 2 of each variety

    • Despatch: By end of September 2015
    •  
    • £12.99

Buddleja 'Buzz™ Indigo'

Buddleja davidii, Buddleia, Butterfly Bush

  • Order early - limited stocks
Our sensational patio Buddlejas are taking the gardening world by storm - and here's a brand new colour to add to the range! Dusky, deep blue flowers smother the short, bushy stems of Dwarf Buddleja Buzz™ Indigo', attracting clouds of butterflies to its nectar rich blooms. This lovely compact shrub is perfectly proportioned for patio pots and smaller gardens. Height and spread: 120cm (47").

Useful links:

How to grow Buddleja Buzz™

More info
    • 1 buddleja jumbo plug plant

    • Despatch: By end of August 2015
    •  
    • £9.99
    • 2 buddleja jumbo plug plants

    • Despatch: By end of August 2015
    • SAVE £3.99  
    • £13.98 £9.99
    • 3 buddleja jumbo plug plants

    • Despatch: By end of August 2015
    •  
    • £19.99
    • 4 buddleja jumbo plug plants

    • Despatch: By end of August 2015
    • SAVE £9.97  
    • £27.96 £17.99

Polyanthus 'Most Scented Mixed' (Garden Ready)

Primula

  • The fast-track to a hassle-free garden - just plant, water and enjoy!
  • Quality plants delivered to your door, hardened off and ready to plant out
  • Fully-grown, super-robust, healthy plants
Our garden ready plants are selected for garden performance, straight from the nursery. We send them to you 'green' ahead of flowering (but please note some varieties may show a few blooms), which means plants will establish quickly and all their energy goes into producing better roots, so they produce more flowers throughout the season.

We've sniffed all the polyanthus we could find to be able to make up this exclusive mix for you! Each fresh colour has a lovely, strong fragrance, to bring you a true scent of spring. From late winter, these vigorous perennials produce plenty of flowers on short, stocky stems, above neat rosettes of lush foliage. Fill all your pots and borders with Polyanthus 'Most Scented Mix' for a riot of scent and colour even on the dreariest winter days! Height and spread: 25cm (10").

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

 

More info
    • 30 polyanthus garden ready plants

    • Despatch: By end of September 2015
    • Buy 2 packs for just £25  
    • £17.99

Brunnera macrophylla 'Jack Frost' (Large Plant)

Siberian Bugloss

  • New in 2015

Grown for it's large, heart shaped, silver leaves with a sparkling metallic sheen that will brighten the shadiest borders. In Spring, the neat clumps of foliage are complimented by delicate sprays of sky blue flowers. Brunnera macrophylla ‘Jack Frost' is a resilient, quick growing hardy perennial, making useful ground cover in those tricky shady areas. Try planting this Siberian Bugloss among hardy ferns for a woodland feel or throughout the front of cottage garden borders. Height: 45cm (18"). Spread: 60cm (24").

More info
    • 1 x 3 litre potted brunnera plant

    • Despatch: By end of August 2015
    •  
    • £12.99
    • 2 x 3 litre potted brunnera plants

    • Despatch: By end of August 2015
    •  
    • £19.99

Bellis 'Bellisima Mix' (Garden Ready)

Daisy

  • The fast-track to a hassle-free garden - just plant, water and enjoy!
  • Quality plants delivered to your door, hardened off and ready to plant out
  • Fully-grown, super-robust, healthy plants
Our garden ready plants are selected for garden performance, straight from the nursery. We send them to you 'green' ahead of flowering (but please note some varieties may show a few blooms), which means plants will establish quickly and all their energy goes into producing better roots, so they produce more flowers throughout the season.

Our best ever pomponette bellis seed variety is now available as a young plant! Much more than just a daisy, the fancy pompom flowers of Bellis 'Bellisima Mixed' offer a brilliant autumn colour injection into the garden! Short, compact plants with so many blooms you'll struggle to see the foliage. Flowers are slightly larger than standard pomponette varieties, and bud up uniformly in flushes for a constant supply of autumn colour. The bright shades of rose, deep rose, red and white will all give excellent garden performance in containers or borders. Don't rush to replace these stunning plants with spring alternatives. You'll find they will overwinter to produce a possible second flush of colour in spring. Height and spread: 20cm (8").

 

More info
    • 30 bellis garden ready plants

    • Despatch: By end of August 2015
    • Buy 2 packs for just £25  
    • £17.99

Lupin 'Russell Hybrids Mixed'

Lupinus

Tall spires of tightly packed flowers rise above clumps of palmate foliage in a magical array of colours. This wonderful mix of the ever popular 'Russell Hybrids' is ideal for adding height and structure to the back of perennial borders and woodland edges. A distinctive hardy perennial that remains a cottage garden favourite. Height: 90cm (36"). Spread: 50cm (20"). More info
    • 3 x 5cm potted lupin plants

    • Despatch: By end of August 2015
    •  
    • £9.99
    • 6 x 5cm potted lupin plants

    • Despatch: By end of August 2015
    • SAVE £6.99  
    • £19.98 £12.99

Wallflower 'Most Scented' Mix

Erysimum, Cheiranthus

 Customer Rating
  • The most scented wallflower
Don't overlook wallflowers! This popular cottage garden favourite is currently enjoying a revival. Wallflower 'Most Scented Mix' is a wonderful blend of specially selected Erysimum, chosen for their fabulous fragrance. Versatile and undemanding, this short lived perennial tends to be grown as a biennial, and is tough enough to cope in even the poorest of soils. Height and spread: 30cm (12").
More info
    • 36 wallflower plug plants

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 72 wallflower plug plants

    • Despatch: By end of September 2015
    •  
    • £14.99

Viola 'Most Scented' Mix

Pansy

  • The most scented violas
Experience the unforgettable fragrance of Viola 'Most Scented Mix'. This exclusive mix exudes a spring-like perfume even on the coolest of winter days. With a cheery bright colour mix, their pretty faces bring a bright splash of colour that will continue well into late spring. Plant them in hanging baskets, window boxes and flower pouches™ and position them by a front door or kitchen window where you can really appreciate them. 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
    • 36 Viola plug plants

    • Despatch: By end of August 2015
    •  
    • £8.99
    • 72 Viola plug plants

    • Despatch: By end of August 2015
    •  
    • £12.99

Dianthus 'Scents of Summer Collection'

Carnation, Pink

  • New in 2015
  • T&M Exclusive

Immerse your senses in Dianthus ‘Scents of Summer Mixed'! We've hand selected a range of modern dianthus plants to offer bright colours, strong garden performance and multi-flowering stems, while retaining the vintage spicy fragrance of garden pinks. The extreme flower power of these hardy perennials means you'll enjoy 100s of cut flower blooms through the summer, every year, with plenty left on the plants to keep them looking good in the garden. Height and spread: 30cm (12").


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

More info
    • 5 dianthus Postiplug plants

    • Despatch: By end of July 2015
    •  
    • £9.99
    • 10 dianthus Postiplug plants

    • Despatch: By end of August 2015
    •  
    • £14.99
    • 20 dianthus Postiplug plants

    • Despatch: By end of August 2015
    •  
    • £24.99