Flower Seeds

Flower seeds become stupendous blooms in your garden. Grow your own flowers from the massive range of seeds available here at Thompson & Morgan. Half-hardy and hardy annual seeds are perfect for populating your borders, patio containers, and hanging baskets. Discover old favourites plus many new flower seed varieties exclusive to us in one of the UK's biggest collections of flower seeds. Growing from seed saves money; for more frugal flower growing ideas browse our bulbs selection. For spring, summer and winter flower growing advice visit our garden hub pages.

Why Choose T&M Seeds

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Sweet Pea 'Sweet Dreams' - Seeds
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Sweet Pea 'Sweet Dreams' - Seeds

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Cosmos bipinnatus 'Double Click Rose Bonbon' - Kew Flowerhouse Seed Collection
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Cosmos bipinnatus 'Double Click Rose Bonbon' - Kew Flowerhouse Seed Collection

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Erigeron karvinskianus 'Profusion' - Seeds
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Erigeron karvinskianus 'Profusion' - Seeds

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Sweet Pea 'Scent Infusion' - Seeds
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Sweet Pea 'Scent Infusion' - Seeds

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Cosmos bipinnatus 'Psyche White' - Seeds
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Cosmos bipinnatus 'Psyche White' - Seeds

51 Reviews

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Cosmos bipinnatus 'Xanthos' - Seeds
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Cosmos bipinnatus 'Xanthos' - Seeds

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Cosmos bipinnatus 'Sea Shells' - Seeds
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Cosmos bipinnatus 'Sea Shells' - Seeds

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Verbena bonariensis - Seeds
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Verbena bonariensis - Seeds

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Wildflowers 'Woodland Shade Mix' - Seed Scatter Pack
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Wildflowers 'Woodland Shade Mix' - Seed Scatter Pack

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Wildflowers 'Cornfield Annuals Mix' - Seed Scatter Pack
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Wildflowers 'Cornfield Annuals Mix' - Seed Scatter Pack

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Wildflowers 'Ultimate Mix' - Seed Scatter Pack
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Wildflowers 'Ultimate Mix' - Seed Scatter Pack

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Just for You

Lavender Duo 24 plugs ONLY £5.99 with any order

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Rose 'Breeder's Choice Red' (Hybrid Tea Rose) 1 bare root ONLY £5.99 with any order over £60

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Pyracantha coccinea 'Orange Star' 1 x 9cm pot ONLY £5.99 with any order over £30

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Tomato 'Sweet Aperitif' 3 Postiplugs ONLY £4.99 with any order

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Flower seeds – more information

Sowing flower seeds gives you fantastic bang for your buck. It’s a great way to fill your beds and borders with summer colour whilst saving money on garden-ready plants or bedding. There are so many flowers to choose from to grow from seed, including annual and perennial varieties. Thompson & Morgan’s quality range is the best place to source your seed to fill garden borders, containers and hanging baskets with overflowing vibrant blooms in shapes, sizes and colours to delight the eye.

Why grow flowers from seeds?

Starting your flowers from seed enables you to grow so many more flowers for a fraction of the price that buying the same amount of garden ready plants would. Sowing your own seed gives you the freedom to achieve early flowering by a few weeks with garden favourites like sweet pea seeds. Simply sow these hardy seeds in autumn while the temperature is still warm enough for germination. Keep the young plants in a cold frame or unheated greenhouse during the colder months.

How long do flower seeds take to grow?

Hardy annuals like cornflower and poppy seeds take an average of 70 days to flower from seed. The time from seed to flower varies depending on when you’re sowing your seeds. Seeds sown under cover in a steady warm temperature will germinate more quickly than those direct sown in the ground outdoors where temperatures vary.

Different types of flower seeds take different lengths of time too. Sunflower seeds are fantastic for beginners, as the colossal flowers are quick to sprout and bloom. Great quick annual flowers to grow from seed include petunias, marigolds and poppies.

Perennial seeds like aquilegia, dianthus and rudbeckia take a few months to bloom. Sowing perennials is cost effective and guarantees colour in the garden for years to come.

For more helpful flower seed advice read our comprehensive seed sowing guide. Overwhelmed with options? Take inspiration from our top ten easy to grow flowers in the UK.

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