Thompson & Morgan

Important delivery notice
The products on this site are only delivered to UK addresses. If you require delivery to another country please visit one of our other sites below.

Refine Results

Refine by..

Email Newsletter

Sign up to our newsletter

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 57 products.
 

Geranium 'T&M's Choice Mixed' F1 Hybrid

Pelargonium, Zonal Geranium, Zonal Pelargonium

  • New in 2014
  • Stunning blooms will last all summer
An improved mix of our best seller Geranium ‘Jackpot’! These weather tolerant, F1 hybrid pelargoniums have more than enough vigour to ensure a spectacular, free flowering display throughout summer. Geranium 'T&Ms Choice Mixed' produce masses of colourful single blooms on neat compact plants. Perfect for filling beds, borders and patio containers. Height: 40cm (16"). Spread: 35cm (14").
More info
    • 6 plug plants

    • Despatch: By end of May 2014
    •  
    • £5.99
    • 36 plug plants

    • Despatch: By end of May 2014
    •  
    • £6.99
    • 72 plug plants

    • Despatch: By end of May 2014
    • Double up 36 to 72 for £5 extra  
    • £13.98 £11.99

Geranium 'T&M's Choice Mixed' F1 Hybrid (Garden-Ready)

Pelargonium, Zonal Geranium, Zonal Pelargonium

  • New in 2014
  • Stunning blooms will last all summer

Our garden-ready plants are now even bigger and better! 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!


An improved mix of our best seller Geranium ‘Jackpot’! These weather tolerant, F1 hybrid pelargoniums have more than enough vigour to ensure a spectacular, free flowering display throughout summer. Geranium 'T&Ms Choice Mixed' produce masses of colourful single blooms on neat compact plants. Perfect for filling beds, borders and patio containers. Height: 40cm (16"). Spread: 35cm (14").

More info
    • 30 garden-ready plants

    • Despatch: By end of June 2014
    •  
    • £14.99

Hellebore Collection

Grow one of the UK's favourite winter-flowering plants; each flower bursting with glorious colour; easy to grow and fully hardy! This Hellebore Collection produces intriguing colours, patterns, flecks and ruffles which are a sheer delight during the cold months of winter and early spring. Their leathery palmate foliage has an evergreen presence all year round. Plants are vigorous, low-maintenance and long-lasting in sunny or difficult shady spots, representing excellent value for money. Height and spread: 45cm (18").


  • Collection comprises 5 plants each of:
  • Hellebore 'Hybridizers Singles' - Elegant, single-flowered Hellebores from our hand-pollinated breeding program, with a whole range of patterns and colours including whites, creams, pinks, greens, yellows, purples and black.
  • Hellebore 'Washfield Doubles' - Breathtaking, double-flowered Hellebores from the 'Washfield' collection that are bred to perfection. These delightful doubles come in a wide colour rangeincluding yellows, greens, blacks, reds, apricots and many other shades.

Plants are taken from selection, and we are unable to label colours upon despatch.

More info
    • 10 jumbo plug plants - 5 of each variety

    • Despatch: By end of June 2014
    •  
    • £17.99

Aubrieta 'Royal Mixed'

Aubretia

 Customer Rating
These tough little plants will thrive in the poorest of soils, forming dense mats of evergreen foliage. Aubretia 'Royal Mixed' produces masses of colourful flowers in spring that will brighten rockeries, spill from containers and creep through cracks in walls and paving. Height: 10cm (4”); spread 60cm (24”).
More info
    • 36 plug plants

    • Despatch: By end of May 2014
    •  
    • £9.99
    • 72 plug plants

    • Despatch: By end of May 2014
    •  
    • £14.99

Hellebore 'Hybridizers Singles'

  • Easy to grow, problem-free and will last for years
  • Fabulous early colour when the garden is dull and drab
  • Plants quickly establish and form clumps in any shady spot
Thompson & Morgan inherited the breeding successes of world renowned hellebore expert Elizabeth Strangman a few years ago. Since then, we've raised a superb range of Washfield hybrids, each with carefully perfected forms and colours. Now we're giving our customers the chance to get their hands on these elegant, single-flowered hellebores from our hand-pollinated breeding program. Helleborus 'Hybridizers Singles' are superb garden plants - and you might even get a surprise colour or two! Height and spread: 45cm (18").
More info
    • 5 jumbo plug plants

    • Despatch: By end of June 2014
    •  
    • £12.99
    • 10 jumbo plug plants

    • Despatch: By end of June 2014
    •  
    • £17.99

Dianthus 'Rainbow Loveliness Improved Mixed'

Pink

Unusual blooms with deeply cut petals give Dianthus 'Rainbow Loveliness Improved Mixed' a soft, feathery appearance. These pretty, eye-catching pinks have a gentle, sweet fragrance that makes them a delightful cut flower for a vase indoors. These compact hardy perennials will quickly form attractive clumps at the front of borders and rockeries, or try planting them in containers for a low maintenance display on the patio. Height and spread: 30cm (12").

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

More info
    • 12 plug plants

    • Despatch:
    •  
    • £8.99
    • Out of stock
    • 24 plug plants

    • Despatch:
    • SAVE £4.99  
    • £17.98 £12.99
    • Out of stock

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.
  • Helianthemum 'Fireball' – Fantastic double scarlet petals.
More info
    • 5 jumbo plug plants - 1 of each variety

    • Despatch: By end of May 2014
    •  
    • £13.99
    • 10 jumbo plug plants - 2 of each variety

    • Despatch: By end of May 2014
    •  
    • £18.99

Dianthus 'Frills and Fragrance Mix'

Pink

  • Mail order exclusive
  • Customer favourite
 Customer Rating
A delightful mix of laced, ruffled and double blooms, each exuding its own heady fragrance - some musky, some spicy, some sweet. These hardy perennial garden pinks are cottage garden essentials. The perfumed dianthus flowers are excellent for cutting for a bright display indoors. Perfectly proportioned for the front of sunny borders where their mounds of silvery green foliage remain evergreen throughout the year. This mix includes the RHS AGM varieties Dianthus 'Doris' and Dianthus 'Gran's Favourite'. Height and spread: 30cm (18”).

 

Culinary note: Dianthus flowers are edible.

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

More info
    • 5 Postiplug plants

    • Despatch: By end of May 2014
    •  
    • £6.99
    • 10 Postiplug plants

    • Despatch: By end of May 2014
    •  
    • £9.99
    • 20 Postiplug plants

    • Despatch: By end of May 2014
    •  
    • £14.99
    • 40 Postiplug plants

    • Despatch: By end of May 2014
    •  
    • £29.98 £24.99
    • 100 Postiplug plants

    • Despatch: By end of May 2014
    •  
    • £49.99

Geranium 'Angel's Perfume'

Pelargonium, Angel Pelargonium, Angel Geranium

  • New in 2014
  • The first fragrant-leaved angel geranium
An Angel Pelargonium with the foliage of a scented leaved geranium - the best of both worlds! Showy burgundy blooms sit beautifully against a backdrop of attractive, fresh green foliage with a fabulous lemon perfume. Fill your senses with Geranium 'Angel's Perfume' - perfect for prominent patio containers where it will really be appreciated. Height and spread: 30cm (12").
More info
    • 3 jumbo plug plants

    • Despatch: By end of May 2014
    • + FREE £5 voucher  
    • £13.99
    • 6 jumbo plug plants

    • Despatch: By end of May 2014
    • + FREE £5 voucher  
    • £27.98 £17.99

Geranium 'Voodoo'

Pelargonium, Unique Geranium, Unique Pelargonium

  • New in 2014
Loved by collectors, the large blooms of this stunning regal pelargonium will have you captivated. Deep wine petals with intensely dark centres give each bloom an alluring velvet appearance. Short stems and a neat bushy habit make Geranium ‘Voodoo’ perfect for displaying in your favourite patio containers. Height and spread: 45cm (18").
More info
    • 5 jumbo plug plants

    • Despatch: By end of May 2014
    •  
    • £12.99
    • 10 jumbo plug plants

    • Despatch: By end of May 2014
    • Save £8.99  
    • £25.98 £16.99

Geranium 'Evka'

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

  • New in 2014
  • 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").
More info
    • 5 jumbo plug plants

    • Despatch: By end of May 2014
    •  
    • £11.99
    • 10 jumbo plug plants

    • Despatch: By end of May 2014
    • Save £6.99  
    • £23.98 £16.99

Geranium 'Azalea-Flowered Collection'

Pelargonium, Ivy-leaved Geranium, Ivy-leaved Pelargonium

  • New in 2014
  • World exclusive
  • 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").
More info
    • 5 jumbo plug plants

    • Despatch: By end of May 2014
    •  
    • £13.99
    • 10 jumbo plug plants

    • Despatch: By end of May 2014
    •  
    • £27.98 £18.99