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 7 products.
 

Eryngium planum 'Blue Hobbit' (Large Plant)

Sea Holly, Blue Eryngo

Eryngium are handy little plants for the border, as they'll grow in many different types of soil, and the flower power of Eryngium 'Little Hobbit' is second to none!

Eryngium 'Little Hobbit' is a unique, dwarf Eryngium, which can be grown in a patio pot. The 30cm (12") plants become top-heavy in midsummer, with sprays of nearly 100 inky-blue flowers. Height and Spread: 30cm (12").

More info
    • 1 x 1 litre potted eryngium plant

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 2 x 1 litre potted eryngium plants

    • Despatch: By end of September 2015
    •  
    • £16.99

Euphorbia characias 'Black Pearl' (Large Plant)

Milkweed, Spurge

A unique plant which gives all year round interest! Euphorbia are fully hardy, and will tolerate dry, sunny borders and periods of drought. Plants are evergreen and architectural, and possibly offer the longest flowering period of any garden plant. The unique black and green flowers of Euphorbia characias 'Black Pearl' are full of sweet nectar, and open in spring, and stay in place until the first frosts. Euphorbia will thrive in dry gardens, Mediterranean-style plantings and large patio pots. Height and Spread: 60cm (24"). More info
    • 1 x 1 litre potted euphorbia plant

    • Despatch: By end of September 2015
    •  
    • £7.99
    • 2 x 1 litre potted euphorbia plants

    • Despatch: By end of September 2015
    •  
    • £12.99

Hosta 'Fragrant Blue' (Large Plant)

Plantain Lily

This is a particularly eye-catching variety with chalky-blue foliage that retains its colour throughout the season. From July to August, the delicately scented, mauve pink flowers offer the perfect complement to the heart shaped foliage. In moist soils, this low growing hardy perennial forms dense ground cover. Hosta 'Fragrant Blue' is perfect for the front of borders, woodland planting schemes, or in the damp soil at the edge of ponds. Height: 50cm (20"). Spread: 100cm (39"). More info
    • 1 x 2 litre potted hosta plant

    • Despatch: By end of September 2015
    •  
    • £13.99
    • 2 x 2 litre potted hosta plants

    • Despatch: By end of September 2015
    •  
    • £21.99

Hosta sieboldiana var. elegans (Large Plant)

Plantain Lily

Hostas are easy to grow ground cover for shady borders or for growing on pots on shaded patios. Hosta sieboldiana var. elegans is an RHS Award of Garden Merit holder, which is strong-growing, clump-forming. Hosta plants will thrive in moist, damp, dark borders, or difficult, dry shady borders.

The Giant Blue Hosta has architectural, blue-green foliage, which is great for the shaded end of cottage garden borders. In the summer, the robust growth plays host to pale lilac, bell-shaped flowers appear on stems held above the foliage. Height: 100cm (39"). Spread: 120cm (48").

More info
    • 1 x 2 litre potted hosta plant

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

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

Hosta 'Blue Angel' (Large Plant)

Plantain Lily

The largest of the blue Hostas, this slow growing hardy perennial forms large clumps of glaucous grey-blue leaves that can each grow up to 40cm (16") long. The enormous leaves provide an ideal backdrop for its bell shaped, white flowers throughout June. Hosta 'Blue Angel' is a well known cultivar with an RHS AGM for its excellent garden performance. A choice specimen plant that will transform a damp, shady corner of the garden. Height: 90cm (36"). Spread: 120cm (48"). More info
    • 1 x 2 litre potted hosta plant

    • Despatch: By end of September 2015
    •  
    • £13.99
    • 2 x 2 litre potted hosta plants

    • Despatch: By end of September 2015
    •  
    • £21.99

Cerinthe major 'Purpurascens' (Large Plant)

Honeywort

 Customer Rating
Also known as Honeywort, this unusual annual bears rounded, blue-green leaves on slender, upright stems. From late spring onwards masses of nodding, rich purple flowers, surrounded by blue-purple bracts appear at the stem tips, which are highly attractive to bees. With a bushy habit, Cerinthe major ‘Purpurascens’ is a fantastic addition to annual beds or used to fill gaps in herbaceous borders, where it is happy in any well drained soil. Height: 60cm (24"). Spread: 45cm (18").
More info
    • 1 x 1 litre potted cerinthe plant

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

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

Festuca glauca (Large Plant)

Blue Fescue

Grown for its stiff, architectural blue foliage, the Blue Fescue is a useful evergreen grass for year round interest. From early summer, the foliage is complemented by short, blue-green flower spikes. This hardy little perennial looks quite at home in patio pots, rockeries, gravel gardens and borders, mixing nicely with perennials, alpines or even small shrubs. Festuca glauca has a particularly neat, clump forming habit that remains nicely compact as it grows. This hardy evergreen grass is easy to grow and virtually maintenance free. Height and spread: 30cm (12"). More info
    • 1 x 1 litre potted festuca plant

    • Despatch: By end of April 2016
    •  
    • £9.99
    • 2 x 1 litre potted festuca plants

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