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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 148 products.
 

Penstemon 'Strawberries & Cream'

This popular hardy perennial deserves a prime spot in the garden. White trumpet shaped flowers with delicately speckled throats appear in summer above a flush of glossy, semi-evergreen foliage. The long-lasting blooms of Penstemon 'Strawberries and Cream' continue well into autumn, long after other plants have run out of steam. Undemanding and easy to grow, Penstemons tolerate almost any position in the garden, regardless of rain or drought, and even resist slug damage. What more could you ask of a plant? Height: 80cm (31"). Spread: 45cm (18").
More info
    • 3 penstemon jumbo plug plants

    • Despatch: By end of October 2016
    •  
    • £9.99

Gerbera 'Sweet Dreams'

Barberton Daisy, Transvaal Daisy

  • T&M exclusive
  • Bigger and better winter hardy gerberas
  • Three seasons of stunning colour
Growing Gerberas outdoors was virtually inconceivable ten years ago. Now these 2nd generation hardy Gerberas can be grown year round in the border! Gerbera 'Sweet Dreams' produces plenty of cerise pink daisy blooms that are twice the size of other hardy Gerberas, and make fabulous cut flowers. Blooming reliably from June to October, these wonderful clump forming hardy perennials make a big impact in borders and patio containers. Height and spread: 45cm (18").
More info
    • 1 x 7cm potted gerbera plant

    • Despatch: By end of October 2016
    • SAVE £3  
    • £9.99 £6.99

Gerbera 'Sweet Glow'

Barberton Daisy, Transvaal Daisy

  • T&M exclusive
  • Bigger and better winter hardy gerberas
  • Three seasons of stunning colour
Growing Gerberas outdoors was virtually inconceivable ten years ago. Now these 2nd generation hardy Gerberas can be grown year round in the border! Gerbera 'Sweet Glow' produces plenty of bright orange daisy blooms that are twice the size of other hardy Gerberas, and make fabulous cut flowers. Blooming reliably from June to October, these wonderful clump forming hardy perennials make a big impact in borders and patio containers. Height and spread: 45cm (18").
More info
    • 1 x 7cm potted gerbera plant

    • Despatch: By end of October 2016
    • SAVE £3  
    • £9.99 £6.99

Penstemon 'Pensham Amelia Jayne' (Large Plant)

Phenomenal stamina and indifference to rain and drought means that Penstemon 'Amelia Jayne' will flower each year for an incredible five months. Mesmerising, red 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: Within 28 days
    •  
    • £9.99
    • 2 x 1 litre potted penstemon plants

    • Despatch: Within 28 days
    •  
    • £14.99

Iris 'Cantina' (Re-Blooming)

Bearded Iris

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").

 

4 for 3 on autumn planting bulbs
More info
    • 1 Iris rhizome

    • Despatch: Within 28 days
    •  
    • £8.99

Rudbeckia 'Summerina Collection'

Coneflower, Black-eyed Susan

  • T&M Exclusive
  • New perennial rudbeckia for borders

Rudbeckia 'Summerina' Collection is exclusive to Thompson & Morgan, a near impossible breeding breakthrough - the crossing of an annual rudbeckia and a perennial echinacea! The result: tough, hardy perennial rudbeckias that return year on year to offer the stronger and longer flowering habit of annual varieties. This three colour mix is ideal for extending the life of your summer border - the plants go on to provide much needed autumn colour right up to the first hard frosts. Height and spread: 60cm (24").

More info
    • 3 rudbeckia jumbo plug plants

    • Despatch:
    •  
    • £17.99
    • Out of stock
    • 6 rudbeckia jumbo plug plants

    • Despatch:
    • SAVE *£5.99  
    • £35.98 £29.99
    • Out of stock

Wallflower 'Sugar Rush' (Pre-Planted Pot)

Erysimum, Cheiranthus

For hassle-free gardening, look no further than our pre-planted pots for easy seasonal colour. We're always on the lookout for ways to make life simpler for our gardening customers. So what could be easier than pots which are already planted up? We've taken the hard work out of creating wonderfully colourful displays - just order our pre-planted pots of your favourite varieties and position them where you'll most enjoy their colour. Then all you need to do is water them and wait!

Winner in the 'Best New Bedding Plant' category at the Grower of the Year Awards 2013, this is one of the most exciting wallflowers to emerge in recent years. Dense, fragrant flower spikes in shades of cream, yellow, red and purple appear not only in the spring, but throughout the autumn too, blooming in just 6 weeks from an August planting! With a delightful sweet fragrance and compact, multi-branching habit, Wallflower 'Sugar Rush' is perfect for beds, borders, containers and window boxes, creating a mass of colour and scent when much of the garden is dormant. Versatile and undemanding, wallflowers are tough enough to cope in even the poorest soils. Height and spread: 30cm (12").

 

Garden ready pre-planted pots
More info
    • 1 x wallflower pre-planted pot with 6 plants

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

Iris 'Pass the Wine' (Re-Blooming)

Bearded Iris

Iris 'Pass the Wine' produces sumptuous burgundy blooms with a rich, velvety appearance. With the first flowers appearing in late spring and continuing into summer, these really are outstanding hardy perennials. These majestic bearded iris flowers also make impressive cut flowers for a vase indoors. Height: 90cm (36"). Spread: 40cm (16").

 

4 for 3 on autumn planting bulbs
More info
    • 1 Iris rhizome

    • Despatch: Within 28 days
    •  
    • £8.99

Viola 'Volante Purple Face'

Pansy

The spreading habit of this new series of miniture trailing violas make them perfect for summer hanging baskets and containers, where they will cover themselves in blooms and repeat flower for months on end.,

Culinary note: Some parts of these flowers are edible. The crystallised petals are great decorations for cakes and cookies, or they can be added straight to green salads for an injection of colour. For more details about edible flowers click here.

More info
    • 5 Viola plug plants

    • Despatch:
    •  
    • £8.99
    • Out of stock

Iris 'Victoria Falls' (Re-Blooming)

Bearded Iris

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").

 

4 for 3 on autumn planting bulbs
More info
    • 1 Iris rhizome

    • Despatch: Within 28 days
    •  
    • £8.99

Anemone 'Wild Swan'

Windflower

  • Award winning new anemone, a Chelsea champion
A truly beautiful perennial, and winner of the RHS Chelsea Flower Show 2011 Plant of the Year title. Trialled over a 10 year period, Anemone 'Wild Swan' is a cross between early and late flowering anemones and as such, the unique flowers bloom intermittently from April right through to the autumn. Each elegant white flower is backed with pretty blue streaks that look particularly eye catching when the flowers nod closed in the mornings and evenings. A superb perennial for borders and woodland gardens with a neat, compact habit. Height: 45cm (18"). Spread: 60cm (24")
More info
    • 1 x 7cm anemone potted plant

    • Despatch: By end of October 2016
    •  
    • £13.99
    • 2 x 7cm anemone potted plants

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

Anemone hybrida 'Queen Charlotte' (Large Plant)

Japanese Anemone, Anemone x hybrida 'Konigin Charlotte'

It's easy to overlook the late show in your garden, as you scramble to fill it with summer colour. But, these superb Japanese anemones will take the blooming relay torch from summer bedding and carry it well into the autumn. Anemone 'Queen Charlotte' is the pick of the bunch, with an extra layer of pure pink petals. Height: 90cm (35"). Spread: 60cm (24").

 

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

    • Despatch: Within 28 days
    •  
    • £12.99
    • 2 x 2 litre potted anemone plants

    • Despatch: Within 28 days
    •  
    • £19.99