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.



We have found 29 products.
 

Giant Fragrant Cowslip

Primula florindae, Tibetan Cowslip

Stiff stems carry whorls of sulphur yellow, tubular, flowers with a delicate, sweet fragrance. Once established, Giant Cowslips will naturalise to form swathes of lush, mid green foliage that makes ideal groundcover for natural planting schemes. With an RHS AGM, Primula florindae makes a superb choice for a damp, shady corner where other plants won't grow. Height: 90cm (35?). Spread: 50cm (20?).
More info
    • 3 jumbo plug plants

    • Despatch: By end of April 2015
    •  
    • £12.99
    • 6 jumbo plug plants

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

Heuchera 'Patchwork' Mix

Coral Flower, Coral Bells

 Customer Rating
Sprays of delicate, tiny flowers float on wiry stems above neat mounds of vibrant foliage. Prized for their colourful leaves, these versatile semi-evergreen perennials make excellent drifts of ground cover, adding a distinctive splash of colour to the front of borders, or even brightening winter containers. Their airy blooms attract bees and are also useful as cut flowers. Height and spread: 40cm (16?).
More info
    • 5 Postiplug plants

    • Despatch: By end of March 2015
    •  
    • £12.99
    • 10 Postiplug plants

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

Shasta Daisy 'Real Glory'

Leucanthemum x superbum, Chrysanthemum maximum

A robust and reliable summer perennial, Shasta Daisy ‘Real Glory’ is aptly named. The large, 10cm (4") diameter blooms have beautifully reflexed petals that each curl downwards to frame a ruffled, creamy-yellow central dome. These shaggy looking daisy flowers perch atop strong, upright stems and last for weeks in the flower border, attracting bees, butterflies, and other insects. They make long lasting cut flowers too. Leucanthemums are closely related to Chrysanthemums and at their best when planted in large drifts for maximum impact! Height: 65cm (26"). Spread: 45cm (18"). More info
    • 3 jumbo plug plants

    • Despatch: By end of March 2015
    •  
    • £12.99
    • 6 jumbo plug plants

    • Despatch: By end of April 2015
    • SAVE £8.99  
    • £25.98 £16.99

Golden Lysimachia

Lysimachia punctata, Dotted Loosestrife

  • A towering, elegant plant for the border
Bring some sunshine to your borders with this resilient cottage-garden favourite. Neat clumps of tall, elegant stems with striking yellow flowers are borne from mid-summer through until early autumn. Golden Lysimachia is great for difficult clay soils and shadier parts of the garden, thriving in damp borders, bog gardens or at the margins of a pond. Grow dotted loosestrife in woodland gardens or informal areas for a burst of late summer colour! Height: 90cm (35"). Spread: 60cm (24").
More info
    • 5 Postiplug plants

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

    • Despatch: By end of April 2015
    • SAVE £4.99  
    • £19.98 £14.99

Comfrey 'Bocking 14'

Symphytum x uplandicum 'Bocking 14', Russian Comfrey

Grow your own soil conditioner! Comfrey 'Bocking 14' contains high levels of basic NPK nutrients and because it is a sterile hybrid, it won't self seed all over your garden.


The nutrient rich foliage of comfrey can be used as a compost activator, mulch, or soaked in barrels of water for 3 to 5 weeks to make a useful liquid feed for tomatoes and beans. Scatter the wilted leaves throughout potato trenches just before planting, to fertilise the crop and improve their flavour! Once established, this quick growing plant can be cut 3 or 4 times throughout the growing season, for a constant supply of nutrient rich, organic, comfrey fertiliser. Height: 100cm (40”). Spread: 75cm (30”).


Useful links:

How to grow herbs

More info
    • 5 root cuttings

    • Despatch: By end of March 2015
    •  
    • £11.99

Heucherella 'Trailing Collection'

  • New hanging basket plant!

A cross between Heuchera and Tiarella, these trailing hardy perennials look fabulous billowing out of hanging baskets, window boxes and patio containers, where the broad-lobed, evergreen leaves provide all-year-round interest! Grow them alone for a fountain of foliage, or in mixed baskets to add texture and contrast. Vigorous and easy to grow, Heucherella 'Trailing Collection' also makes a fantastic groundcover plant for sun or part shade. Height: 25cm (10"). Spread: 60cm (24").


  • Collection comprises:
  • Heucherella 'Crimson Cascade' – Wonderful green to copper-red foliage with contrasting dark veins.
  • Heucherella 'Yellowstone Falls' – Striking lime green leaves with crimson markings.
  • Heucherella 'Redstone Falls' – Vibrant green and ruby red leaves creating a mixture of autumnal colours which change with the seasons.
More info
    • 3 jumbo plug plants

    • Despatch: By end of March 2015
    •  
    • £14.99
    • 6 jumbo plug plants

    • Despatch: By end of March 2015
    • Save £9.99  
    • £29.98 £19.99

Verbena bonariensis 'Lollipop'

Glandularia, Verbena patagonica

 Customer Rating
  • Unique mini Verbena for your patio
Like its parents, Verbena bonariensis 'Lollipop' boasts the same tight clusters of floating purple flowers, but has short, compact stems that reach only half the height. Well shaped, uniform plants with an open airy habit attract butterflies to their glowing blooms from June to September. This fabulous hardy dwarf verbena is perfectly proportioned for patio pots and the front of borders where it creates a wonderful delicate airy effect. Height and spread: 60cm (24").
More info
    • 3 jumbo plug plants

    • Despatch: By end of April 2015
    •  
    • £9.99
    • 6 jumbo plug plants

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

Rudbeckia 'All Sorts Mixed'

Coneflower, Black-eyed Susan

 Customer Rating
  • T&M's own breeding
All your favourite rudbeckias in one spectacular mix, including the bestselling Rudbeckia 'Cherry Brandy', as well as many other doubles, singles, quilled types and more. These robust coneflowers have outstanding garden performance, and the long-lasting blooms make excellent cut flowers. A lovely addition to beds, borders and large patio containers. Height: 60cm (24?). Spread: 40cm (16?).
More info
    • 6 plug plants

    • Despatch: By end of April 2015
    •  
    • £4.99
    • 36 plug plants

    • Despatch: By end of April 2015
    •  
    • £12.99
    • 72 plug plants

    • Despatch: By end of April 2015
    • Double up 36 to 72 for £5 extra  
    • £17.99

Anemone 'Queen Charlotte'

Japanese Anemone, Anemone x hybrida 'Konigin Charlotte'

It's easy to overlook the late show in your garden, as you scramble to fill it with summer colour. But, these superb Japanese anemones will take the blooming relay torch from summer bedding and carry it well into the autumn. Anemone 'Queen Charlotte' is the pick of the bunch, with an extra layer of pure pink petals. Height: 90cm (35"). Spread: 60cm (24").

More info
    • 1 jumbo plug plant

    • Despatch: By end of June 2015
    •  
    • £9.99
    • 3 jumbo plug plants

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

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
    • 6 plug plants

    • Despatch: By end of March 2015
    •  
    • £4.99
    • 12 plug plants

    • Despatch:
    •  
    • £7.99
    • Out of stock

Rudbeckia 'All Sorts Mixed' (Garden-Ready)

Coneflower, Black-eyed Susan

  • T&M's own breeding
You can plant our garden-ready plants straight into the garden when they arrive - it couldn’t be easier! There’s no need to re-pot them or to grow them on - just plant and water them. Pretty soon you’ll be enjoying their wonderful displays of colour. If you haven’t got the time or the room to grow plants from small seedlings, then these are for you! You’re sure to get great results because we’ve done the crucial early growing for you. Just plant, water and enjoy!

All your favourite rudbeckias in one spectacular mix, including the bestselling Rudbeckia 'Cherry Brandy', as well as many other doubles, singles, quilled types and more. These robust coneflowers have outstanding garden performance, and the long-lasting blooms make excellent cut flowers. A lovely addition to beds, borders and large patio containers. Height: 60cm (24”). Spread: 40cm (16”).

 

More info
    • 30 garden-ready plants

    • Despatch: By end of June 2015
    • Add a 2nd pack for just £5  
    • £14.99

Gaura lindheimeri 'Sparkle White'

This stunning hardy perennial makes a fabulous border plant! Its graceful, slender stems are topped with a flurry of dazzling white, starry blooms that still look fresh and airy at the end of summer. This bushy, clump forming variety has a neat, compact habit that makes it perfect for the front of sunny borders or edging paths as a mini hedge. Once established, Gaura lindheimeri 'Sparkle White' even copes well during periods of drought. Height and spread: 45cm (18").
More info
    • 24 plug plants

    • Despatch: By end of April 2015
    •  
    • £12.99
    • 48 plug plants

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