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 15 products.
 

Dianthus barbatus 'Sweet'

Sweet William

  • Summer-flowering Sweet Williams!

Enjoy these delightfully fragrant Sweet Williams all summer long! Clusters of sweetly scented flowers in shades of red, white and purple are borne atop stiff upright stems from June through to September. Superb for cutting for a vase indoors, the vibrant flowers of Dianthus barbatus 'Sweet' are also attractive to bees. Often grown as a biennial, this short lived perennial is ideal for cottage garden beds and borders. Height: 45cm (18"). Spread: 30cm (12").


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

More info
    • 6 dianthus plug plants

    • Despatch: By end of April 2016
    •  
    • £5.99
    • 24 dianthus plug plants

    • Despatch: By end of April 2016
    •  
    • £14.99
    • 48 dianthus plug plants

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

Dianthus 'Doris'

Carnation, Pink

This well known RHS AGM variety is one of the longest flowering Pinks you'll find. An abundance of double pink flowers with deep pink centres are produced all summer long, above mats of silvery green foliage. With a rich, sweet fragrance, Dianthus 'Doris makes a delightful cut flower that will fill your home with fragrance. This compact hardy perennial is perfect for alpine gardens and rockeries or planted through the front of beds and borders. Height and spread: 25cm (10").


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 April 2016
    •  
    • £9.99
    • 10 dianthus Postiplug plants

    • Despatch: By end of April 2016
    • SAVE £4.99  
    • £19.98 £14.99

Dianthus 'Blackjack'

Carnation

New modern cut-flower quality carnation plants packing the heavenly scent of antique varieties! Modern breeding work has seen the unmistakable scent of carnations all but disappear in the search for longer, cut flower-quality stems. Fortunately Carnation 'Blackjack' bucks that trend. Not only does it offer a unique colour combination, the near black blooms also bring punchy clove-like fragrance to the garden. A perfect border carnation, it also performs well in containers. Originally planned for the commercial cut flower market, you won't be disappointed by the endless supply of fresh stems either! Keep the colour and scent in the garden or use Dianthus 'Blackjack' as your very own cut flower carnation. Height and spread: 50cm (20").


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

More info
    • 5 dianthus pencil plug plants

    • Despatch: By end of April 2016
    •  
    • £13.99
    • 10 dianthus pencil plug plants

    • Despatch: By end of April 2016
    • SAVE £7.99  
    • £27.98 £19.99

Lavender 'Hidcote'

Lavandula angustifolia, English Lavender

With its compact habit and dark purple flower spikes, this must be one of the nation's best known varieties of English lavender. The fragrant stems of Lavandula 'Hidcote' are ideal for cutting or drying, and the nectar-rich flowers are particularly attractive to bees. Lavender makes an excellent low hedge or path edging where the perfume can be appreciated as you brush past the aromatic evergreen foliage. Height: 60cm (24"). Spread: 75cm (30").

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

More info
    • 6 lavander plug plants

    • Despatch: By end of April 2016
    •  
    • £5.99

Dianthus 'Ever-blooming Mixed' (Hardy)

Carnation

Strong upright stems carry large ruffled blooms in a vibrant mix of red, orange, yellow and pink carnations. These hardy perennial dianthus are cottage garden essentials. The fragrant carnation 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. Height: 60cm (24"). Spread: 40cm (16").

 

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
    • 6 dianthus plug plants

    • Despatch: By end of April 2016
    •  
    • £5.99
    • 36 dianthus plug plants

    • Despatch:
    •  
    • £10.99
    • Out of stock
    • 72 dianthus plug plants

    • Despatch:
    • Double up 36 to 72 for £5 extra  
    • £15.99
    • Out of stock

Dianthus 'Gran's Favourite'

Carnation, Pink

This well loved RHS AGM variety is as popular as ever for its white blooms with raspberry picotee edges. The clove scented flowers of Dianthus 'Gran's Favourite' are produced in abundance above a carpet of silvery green foliage. With such a prolific flowering period there will be plenty of blooms to spare for a vase indoors. This super little Pink is perfectly hardy and a makes a lovely addition to the front of cottage garden borders. Height and spread: 40cm (16").


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 April 2016
    •  
    • £9.99
    • 10 dianthus Postiplug plants

    • Despatch: By end of April 2016
    • SAVE £4.99  
    • £19.98 £14.99

Cardiocrinum giganteum

Giant Lily, Lilium giganteum

This astonishing hardy perennial makes a fascinating talking point. The tall stems of the Giant Himalayan Lily tower to 2.5m (98") or more in an awe-inspiring display. With maturity Cardicrinum giganteum is topped with a crown of white Lily-like blooms from June the July. The trumpet shaped flowers have a powerful fragrance, attracting plenty of pollinating insects, before they are replaced by interesting oblong seedpods in late summer. The Giant Himalayan Lily may take 3 or more years to flower but is well worth the wait.

This fascinating plant is monocarpic, meaning that it dies after flowering - but don't be put off, it leaves behind offsets that will flower in 3 to 5 years time. Cardiocrinum giganteum is a most unusual plant that will add a real focal point to lightly shaded exotic gardens and woodland borders. Height: 250 cm (98"). Spread: 45cm (18").

More info
    • 1 x 13cm cardiocrinum potted plant

    • Despatch: By end of February 2016
    •  
    • £14.99
    • 2 x 13cm cardiocrinum potted plants

    • Despatch: By end of February 2016
    •  
    • £24.99

Hosta 'So Sweet' (Large Plant)

Plantain Lily

A compact variegated variety forming neat clumps of glossy mid-green foliage with pale yellow margins. From July to August, the funnel shaped blooms appear on short stems above the foliage. As the name suggests, the lilac-white flowers of Hosta ‘So Sweet’ are deeply fragrant. A lovely choice for a prominent spot at the front of moist borders. Unlike some variegated forms, Hosta ‘So Sweet’ will tolerate some sun. Height: 35cm (14"). Spread: 55cm (22").

 

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

    • Despatch: By end of February 2016
    •  
    • £13.99
    • 2 x 2 litre potted hosta plants

    • Despatch: By end of February 2016
    •  
    • £21.99

Dianthus barbatus 'Messenger'

Sweet William

A cottage garden favourite with the sweetest perfume! Clusters of flowers in shades of white, pink and mauve are produced in summer on stiff upright stems. The fragrant blooms of Sweet William 'Messenger' are particularly attractive to bees and make a superb cut flower for a vase indoors. Often grown as a biennial, this short lived perennial is ideal for cottage garden borders, beds and containers. Height: 60cm (24"). Spread: 30cm (12").

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

More info
    • 36 dianthus plug plants

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 72 dianthus plug plants

    • Despatch:
    •  
    • £14.99
    • Out of stock

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:
    •  
    • £9.99
    • Out of stock
    • 72 wallflower plug plants

    • Despatch:
    •  
    • £14.99
    • Out of stock

Primrose 'World's Most Scented Mix'

Primula

- The best ever fragrance mix
- Citrus and honey fragrance
- Colour throughout winter and spring

 

Let the sweet citrus scent and the fresh colour mix of these gorgeous primroses transport you into spring. Primrose 'Worlds Most Scented Mix' is our best ever selection of fragrant primroses in a range of bright, cheery colours that will look fabulous planted among your spring bulbs. Grow some in a pot by the back door to really enjoy their perfume. Height and spread: 20cm (8").

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

More info
    • 36 primrose plug plants

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 72 primrose plug plants

    • Despatch:
    •  
    • £14.99
    • Out of stock

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:
    •  
    • £9.99
    • Out of stock
    • 72 polyanthus plug plants

    • Despatch:
    •  
    • £14.99
    • Out of stock