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 40 products.
 
Monarda Didyma T&M Superb Mixed

Monarda didyma 'T&M Superb Mixed'

Bee Balm, Bergamot
Candelabra-like whorls of flowers in a formula mixture with mint scented foliage. Indispensable border flower for most soils, particularly damp sites. Height 90-100cm (30-40in).

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

 More info
    • 1 packet (80 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Verbascum Phoeniceum Hybrids

Verbascum phoeniceum (Hybrids)

Purple Mullein, Celsia

  Customer Rating

Slender spikes of various shades. Grows freely from seed and always much admired. Height: 60-90cm (2-3ft).

 More info
    • 1 packet (600 seeds)

    • Despatch: Within 2 Days
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    • £0.99
Canna Indica T&M Hybrids

Canna indica 'T&M Hybrids'

Indian Shot Plant

  Customer Rating
Shades of yellow, red and cream with pretty bronze or green foliage. Sow early. More info
    • 1 packet (15 seeds)

    • Despatch: Within 2 Days
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    • £1.49
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
    •  
    • £2.99
Meconopsis Betonicifolia Hensol Violet

Meconopsis betonicifolia 'Hensol Violet'

Himalayan Blue Poppy, Tibetan Blue Poppy
Indulge yourself by growing this rare, mauve form of the exquisite Himalayan Blue Poppy. Scintillating, silky blooms aloft downy foliage give an absolutely breathtaking effect when planted in groups in shady borders and woodland areas. A collector's item for the border. Prefers a deep, moist, loamy soil in part shade. More info
    • 1 packet (40 seeds)

    • Despatch: Within 2 Days
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    • £2.99
Amsonia Tabernaemontana

Amsonia tabernaemontana

Rhazya, Eastern Bluestar
Starry clusters of elegant pale blue Amsonia flowers appear from spring to midsummer. This rarely seen perennial deserves better recognition in gardens for its long flowering period and reliable performance year after year. Amsonia tabernaemontana grows happily in sun or dappled shade and copes well with drought. An attractive and unusual addition to garden borders and woodland gardens. Height: 90cm (35"). Spread: 45cm (18"). More info
    • 1 packet (30 seeds)

    • Despatch: Within 2 Days
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    • £0.69
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
    •  
    • £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
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    • £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
Alstroemeria Ligtu Hybrids

Alstroemeria 'Ligtu Hybrids'

Peruvian Lily

 Invaluable long-lived border plants in numerous shades of pink, orange and scarlet with distinctive, contrasting stripe. One of the worlds' most popular cut flowers. More info
    • 1 packet (35 seeds)

    • Despatch: Within 2 Days
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    • £3.49
Meconopsis Betonicifolia

Meconopsis betonicifolia

Himalayan Blue Poppy, Tibetan Blue Poppy
 Customer Rating
Is there a more beautiful bloom in the entire flower kingdom then the famous Blue Poppy? It is only to be expected that an elusive, magical flower like this is a little harder to grow. The secret with this plant is to grow cool and well shaded. Height: 60-90cm (24-36in). More info
    • 1 packet (50 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.99
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
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    • £2.99