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 18 products.
 
Alcea Rosea Fiesta Time

Hollyhock 'Fiesta Time'

Alcea rosea, Althaea rosea
A beautiful, cottage garden favourite which will flower quickly from seed in its first year. Robust, dwarf plants produce stout stems which carry wonderful, double, cerise-pink, fringed blooms from mid to late summer. Very impressive when planted together in small groups in borders or try planting in large containers for a gorgeous patio display of hollyhocks!

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

 More info
    • 1 packet (35 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Helenium Puberleum Autumn Lollipop

Helenium puberulum 'Autumn Lollipop'

Helen's Flower, Rosilla, Helenium puberleum

  Customer Rating

A curious plant for the front of the border. Autumn Lollipop boasts heads of rustic yellow and bronze with a small basal frill of ruffled petals. Highly ornate and also an extremely original cut flower. Height: 60-90cm (24-36in).

 More info
    • 1 packet (80 seeds)

    • Despatch: Within 2 Days
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    • £0.69
Gaura Lindheimeri

Gaura lindheimeri

White Gaura, Lindhemier's Beeblossom
Spikes of ¾in white flowers, tinged in pink. Long flowering in the border and as cut flowers. Cannot be sent to Hawaii. More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
    •  
    • £3.29
Centaurea Dealbata

Centaurea dealbata

Cornflower, Bachelor's Buttons
An attractive clump forming lavender pink cornflower, with the unusual characteristic of being perennial and flowering In the first year. Easy to grow. adding height and interest to borders, as well as making a superb border cut flower. Height: 80-90cm (32-36in). First Year Flowering Perennial, flowering in June/July. More info
    • 1 packet (80 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.99
Francoa Sonchifolia Pink Giant

Francoa sonchifolia 'Pink Giant'

Bridal Wreath

Reliable garden perennial with deeply lobed green leaves and spikes of large pink bicoloured petals on long flower spikes. Just as lovely in a border as in a vase.

 More info
    • 1 packet (40 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
Salvia Sclarea Var. Turkestanica

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

 More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
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    • £2.69
Verbascum X Hybrida Copper Rose F1

Verbascum x hybrida 'Copper Rose' F1 Hybrid

Mullein, Celsia

 The robust plants are actually incapable of setting viable seed, so we must offer seed which has been pollinated meticulously by hand between the two parent plants. As with most F1 Hybrids, special factors are tremendous vigour and a plant that just keeps on flowering, as it tries to produce seed which it cannot do. The gorgeous silky, large blooms will smother the soft, silver stems which reach up to 3ft. A great range of fashionable and delicious colours - ranging from copper to buff, apricot, old rose, tan and other lovely blends, all bursting from the contrasting silvery-grey flower spikes and buds. Sown in January/February they will easily flower during the summer of their first year, and if cut back will often re-bloom. An excellent performer. More info
    • 1 packet (10 seeds)

    • Despatch: Within 2 Days
    •  
    • £5.99

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

 More info
    • 1 packet (225 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.89
Salvia Sclarea Var. Turkestanica Alba

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

 More info
    • 1 packet (20 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.49
Agastache Anisata

Agastache foeniculum

Anise Hyssop, Agastache anisata, Agastache anethiodora
Silvery-green foliage which is scented unmistakenly of Aniseed. Flower spikes of blue appear during summer. Bees, butterflies and goldfinches love it!

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

 More info
    • 1 packet (60 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.29
Digitalis Parviflora Milk Chocolate

Foxglove 'Milk Chocolate'

Digitalis parviflora, Digitalis kishinskyi

 A delightful species originating from Spain and Portugal. Produces elegant flower spikes covered in small chocolate trumpets circling each stem and attracting beneficial insects. More info
    • 1 packet (100 seeds)

    • Despatch: Within 2 Days
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    • £1.49
Catananche Caerulea Bicolor

Catananche caerulea 'Bicolor'

Blue Cupidone, Cupid's Dart
 Customer Rating

This first-year flowering hardy perennial is the rarer white form of the blue Cupid's Dart. White semi-double star-like flowers, occasionally flecked with blue, 5cm (2in), stand upon long wiry stems held well above the neat grey green foliage. Together with the silvery buds, this plant makes an eye-catching cut flower, or border plant. Height: 60-90cm (24-36in).

 More info
    • 1 packet (75 seeds)

    • Despatch: Within 2 Days
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    • £3.29