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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 20 products.
 

Alstroemeria 'Butterfly Hybrids'

Peruvian Lily

An old strain of Peruvian lilies called the 'Ligtu Hybrids' included some great purples, but over the years these got lost. Now only the pinks and purples have been selected to create this eye-catching mix. One of the easiest cut flowers to grow and definitely one of the most impressive. Height and spread: 60cm (24").

SPECIAL OFFER - To get your alstroemeria plants at the reduced price, simply add them to your order and use order code TNS445Z in your shopping basket.

Please note that this offer is limited to one pack per order at this special price. This offer cannot be used in conjunction with any other offer or with promotional vouchers. Hurry, offer ends midnight Friday 27th May or while stock lasts.

More info
    • 6 alstroemeria Postiplug plants

    • Despatch: By end of June 2016
    • 6p with order code TNS445Z  
    • £14.99

Delphinium 'Black Knight' (Large Plant)

Pacific Hybrid

An absolute cottage garden classic. Plant Delphiniums in bold clumps for back-of-the-border impact. Delphinium 'Black Knight' is an extra special variety with some of the deepest indigo-blue flowers, each with a black eye.

The sight of Delphiniums in a garden is simply divine. They flower from early summer, and will often flower twice. The plants are architectural and handsome, you certainly won't regret planting these handsome perennials! Height: 1.7m (5.5'). Spread: 75cm (29").

 

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

    • Despatch: By end of June 2016
    •  
    • £11.99
    • 2 x 1 litre potted delphinium plants

    • Despatch: By end of June 2016
    •  
    • £17.99

Alstroemeria 'Everest Blue Diamond'

Peruvian Lily

 Customer Rating
  • T&M Exclusive

A fabulous, Peruvian Lily producing mauve blue flowers on tall, upright stems. Alstroemeria 'Everest Blue Diamond' makes an eyecatching feature in borders or containers throughout the summer. Support this hardy perennial with our handy climbing frame for the most impressive display. With so many long-stemmed blooms, you will never be short of cut flowers to add to magnificent bouquets. Height: 140cm (55"). Spread: 75cm (30").

More info
    • 3 alstroemeria jumbo plug plants

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

Verbena bonariensis 'Lollipop' (Large Plant)

Glandularia, Verbena patagonica

 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 June 2016
    •  
    • £7.99
    • 2 x 1 litre potted verbena plants

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

Delphinium 'Pink Blushes'

This Pink Blush is anything but embarrassing! Glorious, tall spikes of evenly spaced, perfectly formed florets in shades of pink, from pastel to magenta! The result of many years of breeding from Terry Dowdeswell, our world-class Delphinium expert in New Zealand, Delphinium 'Pink Blushes' are strong plants with disease resistance and unrivalled garden performance. Height: 1.5m (5'). Spread: 75cm (30").
More info
    • 5 delphinium Postiplug plants

    • Despatch: By end of June 2016
    •  
    • £12.99
    • 10 delphinium Postiplug plants

    • Despatch: By end of June 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
    •  
    • £9.99
    • 3 delphinium jumbo plug plants

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

Verbena bonariensis (Large Plant)

Glandularia, Verbena patagonica

Tightly clustered florets form glowing lavender flower heads that float atop stiffly upright, branching stems. The long lasting blooms of Verbena bonariensis attract clouds of bees and butterflies. This perennial verbena has enjoyed a resurgence in popularity in recent years, associating beautifully with grasses for a tranquil planting scheme, or adding a touch of architectural style to the back of herbaceous borders. This elegant perennial is at its most effective when planted in large swathes. Height: 200cm (79"). Spread: 45cm (18").

 

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

    • Despatch: By end of July 2016
    •  
    • £12.99
    • 2 x 2 litre potted verbena plants

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

Aquilegia vulgaris 'William Guinness' (Large Plant)

Columbine, Granny's Bonnet, Aquilegia 'Magpie'

The striking black bonnets of Aquilegia 'William Guiness' make a superb contrast with the white corolla. The exquisite blooms of this classic cottage garden perennial are carried on wiry stems, set above pretty ferny foliage. This hardy Columbine is perfect for en masse in borders and shady woodland edges, and makes an attractive cut flower for a vase indoors. Height: 75cm (30"). Spread: 30cm (12").

 

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

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

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

Foxglove 'Dalmation Purple' (Large Plant)

Digitalis

Beautiful rich purple blooms with delicate spotted interiors are certain to attract bees and pollinating insects to your garden. Foxglove 'Dalmation Purple' produces well branched, compact, dwarf plants that flower surprisingly quickly. The upright flower spikes of this superb cottage garden perennial are ideal for adding height to the back of borders or planting en masses for an enchanting, informal bedding scheme. Height: 50cm (20"). Spread: 40cm (16").

 

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

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

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

Meconopsis baileyi 'Hensol Violet'

Himalayan Blue Poppy, Tibetan Blue Poppy, Meconopsis betonicifolia

The 'must-have' Himalayan Blue Poppy' has a rival in this exquisite cultivated form. Bright violet-purple, almost shimmering flowers, with the merest hint of red, make a stunning addition planted in groups in shady borders and woodland areas. This 'collectors plant' still surprises countless poppy-lovers who have never seen this unusual perennial before. Meconopsis betonicifolia 'Hensol Violet' is so named for its origins from Hensol House, Scotland, where it was discovered by Lady Henderson. Height: 90cm (36"). Spread: 30cm (12"). More info
    • 1 x 9cm potted meconopsis plant

    • Despatch: By end of November 2016
    •  
    • £11.99
    • 2 x 9cm potted meconopsis plants

    • Despatch: By end of November 2016
    •  
    • £17.98

Iris 'Victoria Falls' (Re-Blooming)

The soft blue blooms of Iris 'Victoria Falls' make a beautiful addition to summer borders. With the first flowers appearing in late spring and continuing into summer, these really are outstanding hardy perennials. These majestic bearded iris flowers have a delicate scent and make impressive cut flowers for a vase indoors. Height: 90cm (36"). Spread: 40cm (16"). More info
    • 1 Iris rhizome

    • Despatch: By end of September 2016
    •  
    • £8.99

Iris 'Cantina' (Re-Blooming)

The bold, violet blooms of Iris 'Cantina' are a magnificent sight in summer borders. With the first flowers appearing in late spring and continuing into summer, these really are outstanding hardy perennials. These majestic bearded iris flowers have a delicate scent and make impressive cut flowers for a vase indoors. Height: 90cm (36"). Spread: 40cm (16"). More info
    • 1 Iris rhizome

    • Despatch: By end of September 2016
    •  
    • £8.99