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 43 products.
 

Helianthemum Collection

These tough little rock roses are hardy, drought tolerant and trouble-free, producing glorious colour from late spring to midsummer. If pruned after flowering, they'll even reward you with a second flush of blooms in late summer! The nectar-rich flowers, set against a backdrop of silvery, semi-evergreen foliage, are loved by bees and other insects. This helianthemum collection makes excellent groundcover or a versatile addition to rockeries or hot, dry borders. Height: 20cm (8"). Spread: 30cm (12").
  • Collection comprises the following varieties:
  • Helianthemum 'Ben Mohr' - Orange, saucer shaped flowers.
  • Helianthemum 'Pink Angel' - An abundance of delicate double, pink flowers.
  • Helianthemum 'The Bride' - A pretty, white rock rose with an RHS Award of Garden Merit.
  • Helianthemum 'Ben Fhada' - Bright, primrose yellow blooms with golden egg-yolk centres.
  • Helianthemum 'Peachy Keen' - New peach bloomed variety 'Peachy Keen' has an overwhelming amount of petals, further boosting the effect in your garden!
More info
    • 5 helianthemum jumbo plug plants - 1 of each variety

    • Despatch: By end of June 2016
    •  
    • £9.99
    • 10 helianthemum jumbo plug plants - 2 of each variety

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

Viola 'Sorbet XP T&M' (Garden Ready)

  • 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.

Create a kaleidoscope of springtime colour with Viola 'Sorbet XP T&M'. This uniform mix is prolific and free flowering with a neat, uniform habit that is perfectly suited to hanging baskets, window boxes and containers. Height: 20cm (8"). Spread: 23cm (9").

Culinary note: Some parts of these flowers are edible. The crystallised petals are great decorations for cakes and cookies, or they can be added straight to green salads for an injection of colour. For more details about edible flowers click here.

 

More info
    • 30 viola garden ready plants

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

Armeria maritima 'Alba' (Large Plant)

Sea Pink, Thrift

The ideal plant for coastal gardens and seaside locations. Sea Thrift is robust, clump-forming, evergreen plant with grassy foliage and lollipop-like flowers in pure white.

A reliable perennial which is recommended for beginners. An easy plant to establish in the garden, giving summer colour from May to August. Height: 25cm (10"). Spread: 50cm (19").

 

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

    • Despatch: By end of June 2016
    •  
    • £9.99
    • 2 x 1 litre potted armeria plants

    • Despatch: By end of June 2016
    •  
    • £16.99

Helianthemum 'Peachy Keen'

Rock Rose, Sun Rose

  • T&M Exclusive

Giving you a glorious display of colour from spring to midsummer, these Rock Roses are both versatile and trouble free. Our new peach flowered variety, Helianthemum 'Peachy Keen', has an overwhelming abundance of petals, which further boosts the display in your garden. This tough, hardy and drought resistant alpine, will produce a second flush of flowers in late summer, if pruned after the first blooming. 'Peachy Keen' can be used as groundcover or an addition to a rockery, either way, it will be also loved by bees and other insects. . Height: 20cm (8"). Spread: 30cm (12"). Evergreen/semi-evergreen.

More info
    • 5 helianthemum jumbo plug plants

    • Despatch: By end of June 2016
    •  
    • £14.99
    • 10 helianthemum jumbo plug plants

    • Despatch: By end of June 2016
    • SAVE *£9.99  
    • £29.98 £19.99

Pansy 'Matrix™ Mixed' (Garden Ready)

Viola x wittrockiana

We've taken the hard work out of creating wonderfully colourful displays - just order our pre-planted baskets of your favourite varieties and position them where you'll most enjoy their colour. Then all you need to do is water them and wait!

This vibrant blend has been specially bred for their excellent branching habit and super size flowers; and the results speak for themselves! The compact sturdy stems hold their vibrant flower heads high, whatever the weather brings to ensure your garden is filled with colour. Easy to grow, Pansy 'Matrix Mixed' is the perfect plant for all your containers and bedding displays. Height and spread: 23cm (9"). Hanging Basket: 27cm diameter.

Culinary note: Some parts of these flowers are edible. The crystallised petals are great decorations for cakes and cookies, or they can be added straight to green salads for an injection of colour. For more details about edible flowers click here.

 

More info
    • 1 x pansy garden ready basket

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

Vinca minor 'Atropurpurea'

Lesser Periwinkle

Deep plum-purple flowers appear in spring above the evergreen foliage of Vinca minor 'Atropurpurea'. This attractive Lesser Periwinkle is less vigorous than its larger cousin Vinca major, making it easier to confine to its allotted space. Vinca are perfect for filling tricky spots where little else grows. Ideal for creating weed suppressing ground cover in almost any position, from sunny banks to dark, shady corners. Height: 20cm (8") Spread: 50cm (19"). More info
    • 1 x 8cm potted vinca minor plant

    • Despatch: By end of June 2016
    •  
    • £9.99
    • 2 x 8cm potted vinca minor plants

    • Despatch: By end of June 2016
    •  
    • £16.99

Helianthemum Collection

Rock Rose, Sun Rose

These tough little rock roses are hardy, drought tolerant and trouble-free, producing glorious colour from late spring to midsummer. If pruned after flowering, they'll even reward you with a second flush of blooms in late summer! The nectar-rich flowers, set against a backdrop of silvery, semi-evergreen foliage, are loved by bees and other insects. This helianthemum collection makes excellent groundcover or a versatile addition to rockeries or hot, dry borders. Height: 20cm (8"). Spread: 30cm (12").
  • Collection comprises the following varieties:
  • Helianthemum 'Ben Mohr' - Orange, saucer shaped flowers.
  • Helianthemum 'Pink Angel' - An abundance of delicate double, pink flowers.
  • Helianthemum 'The Bride' - A pretty, white rock rose with an RHS Award of Garden Merit.
  • Helianthemum 'Ben Fhada' - Bright, primrose yellow blooms with golden egg-yolk centres.
More info
    • 4 helianthemum jumbo plug plants - 1 of each variety

    • Despatch: By end of June 2016
    •  
    • £11.99
    • 8 helianthemum jumbo plug plants - 2 of each variety

    • Despatch: By end of June 2016
    •  
    • £15.99

Primrose 'Elizabeth'

Primula

  • A different display every day!
  • Colour-Changing blooms
  • Watch the frills unfurl

A primrose with a difference. You’ll be amazed at the colour changing blooms of spring-flowering Primrose ‘Elizabeth’, each bloom looks different day by day as they work through a myriad of yellow and pink shades. It’s a shape changer too! Young blooms start our frilly, with petals straightening out as they mature. Looks lovely in spring table top planters and adds a touch of elegance to spring bedding displays in the border. Height: 20cm (8"). Spread: 15cm (6").
More info
    • 24 primrose plug plants

    • Despatch: By end of September 2016
    •  
    • £9.99
    • 48 primrose plug plants

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

Viola 'Bunny Ears'

Viola x wittrockiana

  • Add bounce to your baskets!
  • The Viola everyone wants to grow!
  • Unusual flowers add real character

Cheeky little Violas that retain that classic pansy face beneath unusually long ‘rabbit ear’ top petals. The compact plants are perfect for smaller containers or planting pockets in rockeries and borders - you can even set them in cracks in walls and paving. Despite their size these tidy viola plants pack a real floral punch, creating cushions of mounded colour. Height and spread: 20cm (8").
More info
    • 36 viola plug plants

    • Despatch: By end of September 2016
    •  
    • £13.99
    • 72 viola plug plants

    • Despatch: By end of September 2016
    •  
    • £18.99

Viola 'Plums and Peaches'

Viola x wittrockiana

  • Summer flowering viola
  • Ideal for shady corners
  • Small in size, big on impact

Pretty mini-pansies for the summer garden. These cheery faced violas will thrive through the spring months and just keep going if given some shade for summer. Try this seductive colour blend of happy-faced Violas in your cool, shady corners where other summer bedding fails to thrive. A great solution for summer hanging baskets on shaded north-facing walls or fencing. Height and spread: 20cm (8").
More info
    • 36 viola plug plants

    • Despatch: By end of September 2016
    •  
    • £12.99
    • 72 viola plug plants

    • Despatch: By end of September 2016
    •  
    • £17.99

Vinca minor 'Gertrude Jekyll'

Lesser Periwinkle

The spreading stems of Vinca minor 'Gertrude Jekyll' provide glossy, evergreen foliage that makes useful, weed-beating ground cover. This lovely Lesser Periwinkle flowers relentlessly from spring to autumn. The pure white blooms will brighten even the shadiest position in the garden. Vinca is ideal for tricky areas where nothing else will grow. This low growing, creeping plant will thrive in the most inhospitable of places and requires little attention or maintenance. Height: 20cm (8") Spread: 50cm (19"). More info
    • 1 x 9cm potted vinca minor plant

    • Despatch: By end of September 2016
    •  
    • £9.99
    • 2 x 9cm potted vinca minor plants

    • Despatch: By end of September 2016
    •  
    • £16.99

Campanula carpatica 'Blaue Clips' (Large Plant)

Bellflower

Easy to grow hardy perennial for cottage garden borders or patio pot displays. Campanula carpatica 'Blaue Clips' will quickly form cushion-like plants, which are smothered in violet-blue flowers through the summer months.

Harebell plants are good for ground cover, edging, courtyard gardens or for planting between cracks in paving. They will thrive in a sunny border. Height: 20cm (8"). Spread: 60cm (24").

 

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

    • Despatch: By end of June 2016
    •  
    • £9.99
    • 2 x 1 litre potted campanula plants

    • Despatch: By end of June 2016
    •  
    • £16.99