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 9 products.
 

Geranium 'Rosebud Collection'

Pelargonium, Rosebud Geranium, Ivy-leaved Geranium, Ivy-leaved Pelargonium

Captivating rosebud blooms open to reveal large clusters of fully double flowers on vigorous, trailing plants. Geranium 'Rosebud Collection' includes 5 varieties - 'Red Sybil', 'Pink Sybil', 'Black Rose', Blue Sybil' and 'White Rose'. These varieties have been specially selected because the blooms never open fully, but remain in a truly elegant rosebud formation. Their long flowering period and drought tolerance make these trailing Pelargoniums ideal for creating an enchanting display in window boxes, patio containers and hanging baskets that will last well into autumn. Trails to: 45cm (18"). Spread: 30cm (12").

Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 5 geranium jumbo plug plants - 1 of each variety

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

    • Despatch: By end of April 2016
    • SAVE £2.99  
    • £19.98 £16.99

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

Pansy 'Ballerina'

Viola x wittrockiana

Unusual frilly tutu-like flowers of Pansy 'Ballerina' create a bright carnival of colour throughout the summer. The delicately ruffled petals make a stunning display in containers, beds and borders. Perfect for planting in window boxes where you can enjoy their pretty blooms close up. Height and spread: 23cm (9").

 

Culinary note: Pansy flowers are edible.

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

More info
    • 36 pansy plug plants

    • Despatch: By end of April 2016
    •  
    • £9.99
    • 72 pansy plug plants

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

Geranium 'Rozanne'

Geranium 'Gerwat'

  • Winner of The RHS Chelsea Flower Show 'Plant of the Centenary'
  • Unique long-flowering period for a Hardy Geranium

A celebrated Cranesbill producing masses of saucer shaped, violet-blue blooms with dainty white centres. Being a sterile hybrid, Geranium 'Rozanne' flowers repeatedly throughout the summer and won’t self-seed like other Geraniums. This hardy perennial makes excellent ground cover through the front of informal borders or spilling from containers. As summer ends the loose mounds of foliage colour to reddish brown and fiery orange for an extended display into autumn. Height: 30cm (12"). Spread: 60cm (24").


Useful links:

Geranium 'Rozanne gets our vote for RHS 'Plant of the Centenary'

 

More info
    • 1 geranium jumbo plug plant

    • Despatch: By end of April 2016
    •  
    • £9.99
    • 3 geranium jumbo plug plants

    • Despatch: By end of April 2016
    • SAVE £9.98  
    • £29.97 £19.99

Monarda didyma 'Cranberry Lace' (Large Plant)

Bergamot

Bergamot are unusual-looking perennials that have aromatic foliage and whorls of spidery blooms made up of tubular petals. Monarda ‘Cranberry Lace’ is a compact, short Bergamot with bright pink, and a built-in resistance to powdery mildew problems.

Bergamot is perfect for cottage garden borders where it can quickly form dense, easy to grow clumps. Bergamot flowers are great for the wildlife garden, as they are loved by bees. Height: 90 cm (36"). Spread: 45cm (18").


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

 

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

    • Despatch:
    •  
    • £9.99
    • Out of stock
    • 2 x 1 litre potted monarda plants

    • Despatch:
    •  
    • £16.99
    • Out of stock

Geranium 'Black Rose'

Pelargonium, Rosebud Geranium

The full, rounded buds of Rosebud Geranium 'Black Rose' resemble dainty roses when they first break open, then cluster together to form a pretty posy. This vigorous, trailing variety has the exceptional garden performance of other ivy-leaf geraniums, but their unique flower form truly sets them apart. With regular deadheading, they will spill from windowboxes, containers, and hanging baskets, blooming profusely throughout the summer. Trails to: 45cm (18").
Although technically perennial, Pelargoniums are only half hardy and therefore normally treated as annuals in the UK. However, with care, they may be overwintered in a frost free greenhouse.
More info
    • 5 geranium jumbo plug plants

    • Despatch: By end of April 2016
    •  
    • £9.99
    • 10 geranium jumbo plug plants

    • Despatch: By end of April 2016
    • SAVE £2.99  
    • £19.98 £16.99

Polyanthus 'Firecracker'

Primula

 Customer Rating
An eye-catching new Polyanthus bearing yellow blooms with a fiery orange-red edge. These long-lasting flowers are borne on strong, stout stems above rosettes of semi-evergreen foliage. Versatile and easy to grow, Polyanthus 'Firecracker' is perfect for edging borders and brightening up spring patio containers. Height and spread: 23cm (9").

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

More info
    • 24 polyanthus plug plants

    • Despatch:
    •  
    • £11.99
    • Out of stock
    • 48 polyanthus plug plants

    • Despatch:
    •  
    • £14.99
    • Out of stock

Morning Glory 'Fragrant Sky'

Ipomoea lindheimeri

 Customer Rating
A hardy perennial morning glory with a sweet fragrance too! Scrambling Ipomoea lindheimeri looks just like its annual cousins but you can look forward to it returning year after year. Morning Glory 'Fragrant Sky' produces beautiful lavender blue trumpet blooms against a backdrop of attractive lobed foliage that makes a lovely informal display. Perfect for growing over obelisks, adding height and structure to cottage garden borders. Height: 90cm (35"). Spread: 30cm (12").
More info
    • 1 x 10cm potted morning glory plant

    • Despatch:
    •  
    • £11.99
    • Out of stock
    • 2 x 10cm potted morning glory plants

    • Despatch:
    •  
    • £15.99
    • Out of stock

Anemone hupehensis var. japonica 'Prinz Heinrich' (Large Plant)

Chinese Anemone

This vibrant Chinese Anemone bears a profusion of deep pink flowers in late summer. Each tightly rounded bud reveals semi-double flowers, with delicately rolled petals that fade to paler pink as they mature. Anemone hupehensis var. japonica 'Prinz Heinrich' makes a delightful border perennial, forming a spreading clump of palmate, dark green foliage. An elegant and easy to grow plant that makes a pretty cut flower and is well loved by bees and other pollinators. Height: 75cm (30"). Spread: 60cm (24").

 

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

    • Despatch: By end of February 2016
    •  
    • £12.99
    • 2 x 2 litre potted anemone plants

    • Despatch: By end of February 2016
    •  
    • £19.99