Flower Seeds

Flower seeds become stupendous blooms in your garden. Grow your own flowers from the stupendous 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

Best Sellers

Sweet Pea 'Sweet Dreams' - Seeds

Sweet Pea 'Sweet Dreams' - Seeds

122 Reviews

Just£0.89 (was £2.99)

ADD TO BASKET
Nasturtium 'Chameleon' - Seeds

Nasturtium 'Chameleon' - Seeds

102 Reviews

Just£0.89 (was £1.00)

ADD TO BASKET
Cosmos bipinnatus 'Xanthos' - Seeds

Cosmos bipinnatus 'Xanthos' - Seeds

65 Reviews

Just£1.00

ADD TO BASKET
Wildflower Mixture - Seeds

Wildflower Mixture - Seeds

25 Reviews

Just£0.99 (was £3.49)

ADD TO BASKET
Cornflower 'Blue Diadem' - Seeds

Cornflower 'Blue Diadem' - Seeds

13 Reviews

Just£0.89 (was £3.49)

ADD TO BASKET
Cosmos bipinnatus 'Psyche White' - Seeds

Cosmos bipinnatus 'Psyche White' - Seeds

46 Reviews

Just£1.00

ADD TO BASKET
Lobelia pendula 'Monsoon' - Seeds

Lobelia pendula 'Monsoon' - Seeds

61 Reviews

Just£1.00

ADD TO BASKET
Thunbergia alata 'Superstar Orange' - Seeds

Thunbergia alata 'Superstar Orange' - Seeds

44 Reviews

Just£0.89 (was £3.29)

ADD TO BASKET

Sowing Now

Wildflowers 'Woodland Shade Mix' - Seed Scatter Pack

Wildflowers 'Woodland Shade Mix' - Seed Scatter Pack

12 Reviews

Just£8.99 (was £9.29)

ADD TO BASKET
Wildflowers 'Cornfield Annuals Mix' - Seed Scatter Pack

Wildflowers 'Cornfield Annuals Mix' - Seed Scatter Pack

14 Reviews

Just£8.99 (was £9.29)

ADD TO BASKET
Wildflowers 'Ultimate Mix' - Seed Scatter Pack

Wildflowers 'Ultimate Mix' - Seed Scatter Pack

10 Reviews

Just£8.99 (was £9.29)

ADD TO BASKET
Wildflowers 'Classic Meadow Mix' - Seed Scatter Pack

Wildflowers 'Classic Meadow Mix' - Seed Scatter Pack

15 Reviews

Just£8.99 (was £9.29)

ADD TO BASKET

Just for You

Tomato 'Sweet Aperitif' 6 Postiplugs ONLY £5.99 with any order

Shop now

Lavender Duo 24 plug plants ONLY £5.99 with any order over £30

Shop now

Creeping Phlox Collection 5 Postiplugs ONLY £4.99 with any order

Shop now

Fuchsia 'Deluxe Giant Marbled' Collection 5 Postiplugs ONLY £5.99 with any order over £20

Shop now

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 without buying costly 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.

How to plant wildflower seeds

Wildflower seeds are a fantastic option for neglected parts of the garden that could do with some TLC. Rake the area of ground that you want to sow your seeds, removing rocks, stones and perennial weeds, before evenly scattering your wildflower seeds over the soil surface. Lightly rake the seeds in and give a good watering with a rosette watering can head.

Wildflower seed balls make sowing your garden with wildflowers even easier. Simply throw the balls of seed and clay into beds and borders to create little bursts of colour. The balls contain peat-free compost to boost the seeds, with a touch of chilli powder that acts as a natural deterrent for slugs and snails.

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 scented sweet peas. 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 annual flower seeds like cornflowers and poppies 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. Sunflowers are a fantastic starter flower seed for beginners. The colossal flowers are quick to sprout and bloom. Great quick annual flowers to grow from seed include petunias, marigolds and poppies.

Perennial flower 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.

Sign Up For Exclusive Special Offers

JOIN NOW
RedEye

Sign up for exclusive offers!