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 37 products.
 

Foxglove 'Illumination Collection'

Digitalis

Parentage from the little-known Isoplexis (Canary Island Foxglove) gives these exciting new Digitalis their fabulous tropical colouring. Being completely sterile Foxglove 'Illumination Duo' won't set seed, making them incredibly long flowering. Unlike most foxgloves which are generally biennial, these hardy semi-evergreen varieties are true perennials so you can enjoy them year after year. The exotic looking blooms are densely packed on sturdy stems, with many side branches, making a striking addition to summer borders. Height: 90cm (36"). Spread: 45cm (18").

More info
    • 2 x 9cm potted foxglove plants - 1 of each colour

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

Peony 'Eden's Perfume'

Paeonia, Herbaceous Peony

  • Large blooms scented like damask roses
Said to be the most fragrant peony ever! Large pink, layered blooms with a powerful scent of roses, and layer upon layer of sublime, shell pink petals. Herbaceous peonies are a real feature of the border producing exotic, elegant blooms from early summer onwards which are superb for cutting. Peonies are hardy, long lived and cope well on heavier soils, provided that they are well drained. Height: 90cm (36"). Spread: 60cm (24").
More info
    • 1 bare root peony plant

    • Despatch: By end of May 2016
    •  
    • £14.99
    • 2 bare root peony plants

    • Despatch: By end of May 2016
    • SAVE £4.99  
    • £29.98 £24.99

Foxglove 'Illumination Ruby Slippers'

Digitalis x valinii

  • New colour break
  • Multi-flowering Foxgloves
  • Prennial habit

The Digitalis Illumination Series, from our very own breeding programme, has changed the world of Foxgloves; taking them from a wiry, brief-blooming biennial wildflower to a handsome, tidy yet shrubby perennial with true garden performance.

Following several outstanding colour developments, our breeding team has done it again with the creation of a brand new colour break. Digitalis 'Illumination Ruby Slippers' is the latest addition to our award winning series. This beautiful foxglove produces multiple spires of open-mouthed blooms on short stocky plants that are just as at home in a patio pot as a cottage garden border scheme. Being completely sterile, this stunning Foxglove won't set seed, making it incredibly long flowering. As the main flower spike fades, multiple sideshoots spring up to offer five months of vivid floral colour. Parentage from the little-known Isoplexis (Canary Island Foxglove) gives this exciting new Digitalis its fabulous colouring and perennial habit. Height: 90cm (36"). Spread: 45cm (18")

More info
    • 1 x 9cm potted foxglove plant

    • Despatch: By end of June 2016
    •  
    • £14.99
    • 2 x 9cm potted foxglove plants

    • Despatch: By end of June 2016
    • SAVE £9.99  
    • £29.98 £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: Use the dried leaves to make Bergamot tea or use the sweet, spicy flavoured petals to enhance salads, jellies, rice or pasta dishes. 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: By end of May 2016
    •  
    • £9.99
    • 2 x 1 litre potted monarda plants

    • Despatch: By end of May 2016
    •  
    • £16.99

Delphinium 'Flamenco'

Delphinium 'Flamenco' is a huge improvement on previous double flowering varieties. Double delphiniums have been around for years, but older forms often produce weak, disease-prone plants. Modern breeding has changed all that! Delphinium 'Flamenco' has been developed with garden performance and disease resistance high on the agenda. Compact plants produce sturdy flower spikes, covered in fully double frilly rosettes. The elegant blooms are the perfect summer border filler and also perform well in container displays. The stocky stems require no staking and make a welcome addition to home grown cut flower bouquets. Height: 90cm (36"). Spread: 30cm (12in). More info
    • 1 delphinium jumbo plug plant

    • Despatch: By end of September 2016
    •  
    • £8.99
    • 3 delphinium jumbo plug plants

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

Echinacea purpurea 'Rubinstern' (Large Plant)

Coneflower

Cone Flowers are much loved by bees and butterflies when grown in the garden, so are a common choice for wildlife gardening. The clump-forming plants work well in cottage garden borders, and will flower for a long period. Echincea ‘Rubinstern’ is particularly recommended, thanks to its rich pink, daisy-like flowers, which can be up to 12cm (5") wide. Height: 90cm (36"). Spread 50cm (20").

 

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

    • Despatch: By end of May 2016
    •  
    • £9.99
    • 2 x 1 litre potted echinacea plants

    • Despatch: By end of May 2016
    •  
    • £16.99

Aster novi-belgii 'Karminkuppel' (Large Plant)

Michaelmas Daisy, New York Aster, Symphyotrichum

The Michaelmas Daisy is a classic late summer and autumn hardy perennial. Blooms of Aster novi-belgii 'Karminkuppel' are richly double, in the most glorious magenta pink, and produced in a flurry, extending the summer party in your garden.

Michaelmas Daisies are perfect for the cottage garden; they’re such a quintessentially English plant. Easy to establish and lasting for many years in the garden. Height: 90cm (36"). Spread: 50cm (19").

 

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

    • Despatch: By end of May 2016
    •  
    • £9.99
    • 2 x 1 litre potted aster plants

    • Despatch: By end of May 2016
    •  
    • £16.99

Lupin 'Noble Maiden' (Large Plant)

Lupinus

No cottage garden would be complete without the well loved Lupin, and this one is stunning in its simplicity. Tall spires of snow white blooms rise above clumps of palmate foliage in early summer. Lupin ‘Noble Maiden’ makes a particularly effective choice for brightening dappled shade in woodlands, where its pale flowers appear luminescent. Height: 90cm (36"). Spread: 75cm (30").

 

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

    • Despatch: By end of May 2016
    •  
    • £12.99
    • 2 x 2 litre potted lupinus plants

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

Sidalcea hybrida 'Party Girl' (Large Plant)

Prairie Mallow

Upright flower spikes carrying rose-pink and white blooms make a colourful display in midsummer. Sidalcea hybrida 'Party Girl' is a showy variety of this classic cottage garden perennial, forming neat, clumps of rounded foliage. Prairie Mallows are superb for filling gaps in borders and make pleasing cut flowers for summer bouquets. Height: 90cm (36"). Spread: 45cm (18").

 

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

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

    • Despatch:
    •  
    • £14.99
    • Out of stock

Anemone x hybrida 'September Charm' (Large Plant)

Japanese Anemone

Anemone x hybrida 'September Charm' is a cottage garden classic. Rose-pink blooms, with outer petals softly tinted in purple, will revive fading borders right through to early autumn. Each solitary flower is held aloft on slender upright stems that make wonderful cut flowers. This well known variety of Japanese Anemone is particularly free flowering, giving a reliable display year after year. The dark green foliage forms an attractive clump that will easily fill a gap in your herbaceous border. A quintessential cottage garden plant which is always popular with pollinating insects. This cultivar also holds an RHS Award of Garden Merit. Height: 90cm (36"). Spread: 40cm (39").

 

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

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

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

Penstemon 'Pensham Czar' (Large Plant)

Phenomenal stamina and indifference to rain and drought means that Penstemon 'Czar' will flower each year for an incredible five months. Mesmerising, lilac bells with satiny white throats are carried above semi evergreen foliage. These popular hardy perennials deserve prime spots in the garden or on the patio where they can really show off. Pensham penstemons also boast slug resistance and semi-evergreen foliage, giving an all round winning performance for many years. Height: 90cm (36"). Spread: 45cm (18").

 

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

    • Despatch: By end of June 2016
    •  
    • £9.99
    • 2 x 1 litre potted penstemon plants

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

Anemone tomentosa 'Serenade' (Large Plant)

Anemone vitifolia

This charming Anemone makes a tall, herbaceous perennial with generous amounts of late summer blooms, often lasting well into the autumn. The flowers of Anemone tomentosa ‘Serenade’are candy pink, and unusually semi-double, with 2 rows of soft petals.

Japanese Anemones are excellent garden plants, which are ideal for beginners. Once established, plants will last for years in the garden, with very little effort. Plants are also extremely rabbit resistant. Height and Spread: 90cm (35").

 

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

    • Despatch: By end of July 2016
    •  
    • £9.99
    • 2 x 1 litre anemone potted plants

    • Despatch: By end of July 2016
    •  
    • £16.99