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 39 products.
 

Scabious 'Butterfly Magnets Mixed'

Scabiosa atropurpurea, Pincushion Flower

Marvel at the whirling clouds of butterflies that are drawn to this lovely Scabious mix. Pincushion blooms in a super colour range are supported on tall wiry stems that make fabulous cut flowers. Scabious 'Butterfly Magnets Mixed' creates a wonderful billowing, airy feature for the back of cottage garden borders particularly when planted in large drifts. Height: 90cm (36"). Spread: 30cm (12").
More info
    • 3 scabious jumbo plug plants

    • Despatch: By end of September 2016
    •  
    • £12.99
    • 6 scabious jumbo plug plants

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

Campanula lactiflora 'Dwarf Pink' (Large Plant)

The Milky Bellflower has long been a cottage garden favourite. This pretty cultivar bears a profusion of rose-pink, star shaped flowers from May to August which provide a valuable source of nectar for bees and other pollinators. Although not as small as its name might suggest, Campanula lactiflora 'Dwarf Pink' is certainly more compact than the rest of its species, maintaining a neat habit in garden borders. This hardy perennial is quick to flower and perfect for filling gaps in herbaceous borders. The blooms make an attractive cut flower too. Height: 90cm (35"). Spread: 45cm (18").

 

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

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

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

Iris 'Re-Blooming Collection'

Bearded Iris

 Customer Rating

A beautiful selection of hardy, drought tolerant bearded iris with exceptional disease and insect resistance. With the first flowers appearing in spring, and a second flush in autumn, these really are outstanding hardy perennials; perfect for summer borders. These majestic, tall bearded iris flowers have a delicate scent and make impressive cut flowers for a vase indoors. Height: 90cm (36"). Spread: 30cm (12").


  • Collection comprises:
  • Iris 'Orange Harvest' - Rust orange flowers.
  • Iris 'Victoria Falls' - Light blue iris flowers.
  • Iris 'Cantina' - Violet blooms.
  • Iris 'Buckwheat' - Golden yellow petals.
  • Iris 'Pass the Wine' - Wine red flowers.

 

4 for 3 on autumn planting bulbs
More info
    • 5 Iris rhizomes - 1 of each variety

    • Despatch: By end of September 2016
    •  
    • £14.99
    • 10 Iris rhizomes - 2 of each variety

    • Despatch: By end of September 2016
    • SAVE* £64.91  
    • £89.90 £24.99

Campanula lactifolia Violet (Large Plant)

 

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

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

    • Despatch:
    •  
    • £14.99
    • Out of stock

Lobelia cardinalis 'Queen Victoria' (Large Plant)

Tall spikes of deep maroon foliage topped by glowing scarlet blooms bring a welcome splash of late summer colour, when many flowers have already faded. This exotic looking, short lived perennial is ideal for filling gaps in damp borders, and looks spectacular planted beside ponds and streams. Height: 90cm (36"). Spread: 30cm (12").

 

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

    • Despatch: By end of September 2016
    •  
    • £9.99
    • 1 x 3 litre potted lobelia plant

    • Despatch: By end of September 2016
    •  
    • £12.99
    • 2 x 1 litre potted lobelia plants

    • Despatch: By end of September 2016
    •  
    • £14.99
    • 2 x 3 litre potted lobelia plants

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

Salvia x jamensis 'Hot Lips' (Large Plant)

Salvia microphylla 'Hot Lips'

Spice up your summer patio pots with Salvia 'Hot Lips'. Naturally bushy plants boast eye-catching flower spikes with open-mouthed, bicolour blooms. In particularly hot weather look out for individual flowers in solid red or solid white. The aromatic foliage has a fine blackcurrant fragrance that only adds to its charm. This showy ornamental sage is perfect for cottage garden borders and containers, or incorporated into bedding schemes for a vibrant summer display. Although perennial, this half hardy Salvia will appreciate some protection from winter weather. Height: 90cm (35"). Spread: 60cm (24").

 

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

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

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

Poppy 'Beauty of Livermere' (Large Plant)

Papaver orientale, Oriental Poppy

Bright red blooms with black centre markings create a boisterous display that will certainly grab the limelight! The solitary papery blooms of Poppy 'Beauty of Livermere' perch on slender, hairy stems that sway above neat clumps of downy foliage. Although the flowers are relatively short-lived, this hardy Oriental Poppy brings late summer interest to borders with its large pepper pot seedheads. This well known variety is a must have for cottage garden borders and wildlife areas where it will attract plenty of pollinating insects. Height: 90cm (35"). Spread: 60cm (24").

 

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

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

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

Lupin 'Russell Hybrids Mixed' (Large Plant)

Lupinus

Tall spires of tightly packed flowers rise above clumps of palmate foliage in a magical array of colours. This wonderful mix of the ever popular 'Russell Hybrids' is ideal for adding height and structure to the back of perennial borders and woodland edges. A distinctive hardy perennial that remains a cottage garden favourite. Height: 90cm (36"). Spread: 50cm (20").

 

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

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

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

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
    •  
    • £17.99

Lupin 'Russell Hybrids Mixed'

Lupinus

Tall spires of tightly packed flowers rise above clumps of palmate foliage in a magical array of colours. This wonderful mix of the ever popular 'Russell Hybrids' is ideal for adding height and structure to the back of perennial borders and woodland edges. A distinctive hardy perennial that remains a cottage garden favourite. Height: 90cm (36"). Spread: 50cm (20"). More info
    • 3 x 5cm potted lupin plants

    • Despatch: By end of September 2016
    •  
    • £9.99
    • 6 x 5cm potted lupin plants

    • Despatch: By end of September 2016
    • SAVE *£6.99  
    • £19.98 £12.99

Astrantia major 'Roma' (Large Plant)

Hattie's Pincushion, Masterwort

Pretty pincushion flowers in a delicate shade of pink, rise above loose clumps of attractive glossy foliage. Often seen in cottage garden borders, Astrantia major 'Roma' also thrives in the moist soil at a woodland edge or beside a pond or stream. The understated blooms, surrounded by papery outer bracts, are ideal for cutting for a delicate fresh or dried flower arrangement. Astrantia 'Roma' is one of the best varieties, and comes with an RHS AGM. The flowers persist from June to September and won't self seed as this variety is completely sterile. For almost instant gardening, choose Masterwort. Plants are quick-growing, easy to establish and long-lasting. Height: 90cm (35") and Spread: 45cm (18").

 

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

    • Despatch: By end of September 2016
    •  
    • £14.99
    • 2 x 1 litre potted astrantia plants

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

Poppy 'Victoria Louise' (Large Plant)

Papaver orientale, Oriental Poppy

Apricot pink, crepe paper petals form sumptuous large flowers, with distinctive black markings that surround the dark central eye. The short lived blooms of oriental poppy 'Prinzessin Victoria Louise' rise on tall bristly stems, followed in late summer by attractive seedheads. This stunning hardy perennial will certainly add a touch of luxury to your cottage garden borders. Height: 90cm (36"). Spread: 60cm (24").

 

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

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

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