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 70 products.
 

Shasta Daisy 'Goldfinch' (Large Plant)

Leucanthemum × superbum

This exciting modern cultivar is the most yellow Leucanthemum to date. The semi double blooms of Shasta Daisy 'Goldfinch' open a bright lemon colour that slowly fades to pale ivory as the blooms age. This compact variety is well branched and bushy, flowering for weeks from late spring onwards and attracting bees and butterflies to its nectar rich blooms. This reliable hardy perennial is undemanding and easy to grow in borders and wildlife areas. It also makes a lovely cut flower. Height and spread: 60cm (24").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 3 litre potted leucanthemum plant

    • Despatch: By end of August 2016
    •  
    • £12.99
    • 2 x 3 litre potted leucanthemum plants

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

Verbena bonariensis 'Lollipop' (Large Plant)

 Customer Rating

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").

 

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

    • Despatch: By end of August 2016
    •  
    • £7.99
    • 2 x 1 litre potted verbena plants

    • Despatch: By end of August 2016
    • SAVE *£2.99  
    • £15.98 £12.99

Foxglove 'Milk Chocolate' (Large Plant)

Digitalis parviflora

Rich chocolate coloured flowers tightly fill the slender flower spikes of this superb Foxglove. Digitalis parviflora 'Milk Chocolate' is a rarely seen variety with glossy foliage that complements the unusual blooms. Native to Spain, this Foxglove is surprising hardy and enjoys a lightly shaded position in the garden. The nectar rich blooms prove particularly attractive to bees, making this a useful addition to wildlife areas. Pair it with white flowered Digitalis for a particularly elegant contrast. Height: 60cm (24"). Spread: 30cm (12").

 

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

    • Despatch: By end of August 2016
    •  
    • £9.99
    • 2 x 1 litre potted digitalis plants

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

Sedum 'Herbstfreude' (Large Plant)

Sedum are a magnet for butterflies in the garden; and are reliable, hardy and always colourful! Sedum 'Herbstfreude' forms a clump, with drought tolerant, fleshy foliage, and pink autumn blooms.

Sedum are most at home in hot, sunny borders, and require zero maintenance, so are ideal for beginners. Their autumn flowering period is useful for extending the season of interest in the garden. Height and spread: 60cm (24").

 

Lifetime Guarantee on Hardy Plants Large Potted Plant Special Offer
More info
    • 1 x 3.5 litre potted sedum plant

    • Despatch: By end of July 2016
    •  
    • £10.99
    • 2 x 3.5 litre potted sedum plants

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

Agapanthus 'Twister'

African Blue Lily

Here's a plant that will stand out from the crowd in your garden - the first ever deciduous bicolour Agapanthus. This African lily is robust, and truly hardy in the UK meaning it's perfect in the garden border as well as in a patio container. The flowers of Agapanthus 'Twister' are absolutely glorious, with crystal white flutes turning inky blue at the tips. The huge globes of colour appear from mid to late summer, hosted on strong, sturdy stems that need no staking. Height: 60cm (24"). Spread: 50cm (20").

 

Agapanthus Range
More info
    • 1 x 9cm potted agapanthus plant

    • Despatch: By end of September 2016
    •  
    • £13.99
    • 2 x 9cm potted agapanthus plants

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

Nepeta racemosa Walker's Low (Large Plant)

 

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

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

    • Despatch:
    •  
    • £14.99
    • Out of stock

Coreopsis 'Full Moon' (Large Plant)

Large, buttery-yellow daisy flowers appear above a low mound of finely cut foliage from July to September. Instead of setting seed, Coreopsis 'Full Moon' puts all of its energy into flowering over a long period, so you can be sure of a great display throughout the summer. This easy to grow, hardy perennial forms well branched plants that will happily fill gaps in sunny borders or patio containers. A good cut flower and a great addition to wildlife areas for its nectar rich blooms. Height and spread: 60cm (24").

 

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

    • Despatch: By end of August 2016
    •  
    • £7.99
    • 2 x 1 litre potted coreopsis plants

    • Despatch: By end of August 2016
    •  
    • £12.99

Sedum 'Herbstfreude' (Large Plant)

Sedum are a magnet for butterflies in the garden; and are reliable, hardy and always colourful! Sedum 'Herbstfreude' forms a clump, with drought tolerant, fleshy foliage, and pink autumn blooms.Sedum plants are most at home in hot, sunny borders, and require zero maintenance, so are ideal for beginners. Their autumn flowering period is useful for extending the season of interest in the garden. Height and Spread: 60cm (24").

 

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

    • Despatch:
    •  
    • £7.99
    • Out of stock
    • 2 x 1 litre potted sedum plants

    • Despatch:
    •  
    • £12.99
    • Out of stock

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 August 2016
    •  
    • £5.99

Agapanthus 'Flower of Love'

African Blue Lily

  • The bluest agapanthus blooms
  • Lush evergreen foliage
  • Thrives on neglect!

The perfect African lily for UK gardens! The deep blue florets of Agapanthus 'Flower of Love' are some of the darkest in the genus. Set above lush, strappy evergreen foliage, the exotic blooms make a real statement in sunny borders and patio container displays, returning each summer and getting better every year. Hardier than most other modern introductions, Agapanthus 'Flower of Love' requires little upkeep, performing well on the poorest of soils, and in the confines of a patio pot, where good drainage is provided. There's no need for regular feeding or cutting back, simply apply a balanced feed each spring and cut back spent flower stalks in autumn. Foliage stays green year-round, offering valuable winter ground cover. Height: 60cm (24"). Spread: 60cm (24").
More info
    • 1 x 9cm potted agapanthus plant

    • Despatch: By end of September 2016
    •  
    • £13.99
    • 2 x 9cm potted agapanthus plants

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

Heuchera villosa 'Palace Purple' (Large Plant)

Heuchera sanguinea 'Palace Purple', Coral Flower, Coral Bells

Neat mounds of distinctive purple foliage make Heuchera 'Palace Purple' a particularly popular Coral Flower. The glossy, semi-evergreen leaves of this striking hardy perennial provide year round colour, forming drifts of ground cover and adding a bright splash to winter containers. The delicate summer sprays of pale pink flowers make dainty cut flowers and attract bees to their nectar rich blooms. Height and spread: 60cm (24").

 

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

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

    • Despatch:
    •  
    • £16.99
    • Out of stock

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: Use the clove like tasting petals for adding to cakes, either for flavour or decorating, suitable for soups, salads and sauces too. For more details about edible flowers click here.

More info
    • 6 dianthus plug plants

    • Despatch: By end of September 2016
    •  
    • £5.99
    • 72 dianthus plug plants

    • Despatch: By end of September 2016
    • Double up 36 to 72 for £5 extra  
    • £15.99