Thompson & Morgan

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Perennial & Biennial Seeds


Biennials live for 2 years, whereas perennials live for longer. As a general rule, biennial and perennial seeds should be sown in spring, but some can be sown in autumn as well. Many varieties will self-seed after flowering, giving you even more plants!



We have found 17 products.
 

Poppy 'Checkers'

Papaver orientale, Oriental Poppy

First year flowering from an early sowing. Poppy Checkers is easy to raise and very rewarding with pure white silky flowers are flanked within by the deepest black cross. Use as a novel cut flower, as well as for the traditional dried seed heads. Height: 60-90cm (2-3ft).
More info
    • 1 packet (50 poppy seeds)

    • Despatch: By end of September 2016
    •  
    • £0.99

Poppy 'Coral Reef'

Papaver orientale, Oriental Poppy

 Customer Rating

A chance discovery on T&M research grounds has led to the introduction of this spectacular NEW true orientale poppy. Large vibrant flowers, often 5in. across of an intense and vivid coral pink never seen before in true orientale poppies from seed and rarely matched in the entire flower kingdom. Unlike many orientale poppies available, because it has been bred from seed it has consistent vigour, with many flowers over a long flowering period. Also it is not prone to 'flopping over' a fault with many varieties of this type of poppy. It is a long lived perennial making large plants within 3 years. From a late Autumn sowing it will flower in its first summer, coming true from seed. In a mixed orientale poppy trial the bees had apparently been very active as a red flowered hybrid produced several plants of this vivid pink. T&M's breeders got busy and... Coral Reef was born!

More info
    • 1 packet (45 poppy seeds)

    • Despatch: by Monday
    •  
    • £2.99

Dianthus barbatus 'Indian Carpet Mixed'

Sweet William

A dwarf compact variety with a very wide colour range and excellent for bedding. It can be treated either as a biennial or as a half hardy annual to produce flowers the same season usually in around 10 weeks from sowing. Flowers early summer. Often grown as a biennial, this short lived perennial is ideal for cottage garden borders, beds and containers. Height 6in.

Culinary note: Use the clove like tasting petals for adding to cakes, either for flavour or decorating, suitable for soups, salads and sauces too. For more details about edible flowers click here.

More info
    • 1 packet (400 dianthus seeds)

    • Despatch: by Monday
    •  
    • £2.49

Salvia sclarea var. turkestanica

Biennial Clary

Scores of tall stems bearing many pink to white bracts and soft blue and white tiny flowers. Remaining spectacular, even in early autumn.

Culinary note: A very aromatic flavour that is ideal for adding to salads for a cheerful coloured contrast. For more details about edible flowers click here.

More info
    • 1 packet (50 salvia seeds)

    • Despatch: by Monday
    •  
    • £0.99

Hesperis matronalis 'Alba'

Sweet Rocket

Charming, large spikes of single, white flowers, fragrant in the evening.

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (250 hesperis seeds)

    • Despatch: by Monday
    •  
    • £2.99

Dianthus barbatus 'T&M Auricula-eyed Mixed'

Sweet William

Irresistible, sparkling, gay colours for the garden with a sweet, carnation-like fragrance. Everybody can grow them to perfection. They are excellent for cutting and last for a long time in water. Flowers late spring/early summer. Often grown as a biennial, this short lived perennial is ideal for cottage garden borders, beds and containers. Height 46cm (18in).


Culinary note: Use the clove like tasting petals for adding to cakes, either for flavour or decorating, suitable for soups, salads and sauces too. For more details about edible flowers click here.

More info
    • 1 packet (450 seeds)

    • Despatch: by Monday
    •  
    • £1.99

Poppy 'Brilliant'

Papaver orientale, Oriental Poppy

The classic Orientale Poppy, with large, bright scarlet-red flowers with a jet black centre, which comes true to type from seed. A striking plant for the border.
More info
    • 1 packet (180 poppy seeds)

    • Despatch: by Monday
    •  
    • £2.99

Dianthus barbatus 'Excelsior Mixed'

Sweet William

Often grown as a biennial, this short lived perennial is ideal for cottage garden borders, beds and containers.

Culinary note: Use the clove like tasting petals for adding to cakes, either for flavour or decorating, suitable for soups, salads and sauces too. For more details about edible flowers click here.

More info
    • 1 packet (300 seeds)

    • Despatch:
    •  
    • £2.29
    • Out of stock

Salvia sclarea var. turkestanica alba

Biennial Clary

A really choice border plant! Quickly becoming established, the many, strong erect stems are topped with plumes of white and lime-green bracts, which have a maroon underside. A superb plant to give colour balance to the garden.

Culinary note: A very aromatic flavour that is ideal for adding to salads for a cheerful coloured contrast. For more details about edible flowers click here.

More info
    • 1 packet (20 salvia seeds)

    • Despatch: by Monday
    •  
    • £0.99

Hesperis matronalis

Sweet Rocket

Charming, large spikes of single, lilac and purple flowers are produced in the spring filling the air with their sweet and spicy evening fragrance. Sweet Rocket will also attract butterflies and other beneficial insects to your garden. Hardy Biennial - can be perennial in some soils.

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (500 hesperis seeds)

    • Despatch: by Monday
    •  
    • £2.99

Dianthus barbatus 'Kaleidoscope Mixed'

Sweet William

  • RHS Perfect for Pollinators
A cottage garden favourite with an unusual colour twist! This beautiful Sweet William produces large heads of pretty pink flowers that gradually mature to white, creating a delightful bicolour effect. Sweet William 'Kaleidoscope' is highly scented with multi branching stems that make it superb for cutting. Often grown as a biennial, this short lived perennial is ideal for borders, beds and containers, and will even flower in the same year if sown early. Height: 60cm (24"). Spread: 30cm (12").

Culinary note: Use the clove like tasting petals for adding to cakes, either for flavour or decorating, suitable for soups, salads and sauces too. For more details about edible flowers click here.

More info
    • 1 packet (40 dianthus seeds)

    • Despatch: by Monday
    •  
    • £1.99

Nepeta cataria

Catmint, Catnip

No cat should be deprived of this! Their reaction to the aromatic silver grey foliage is fascinating. Flower spikes of violet spotted white.

Culinary note: The strong, minty/spicy flavoured flowers can be used sparingly in pasta or rice dishes. For more details about edible flowers click here.

More info
    • 1 packet (225 nepeta seeds)

    • Despatch: by Monday
    •  
    • £2.99