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Seeds to sow indoors in March

Shop seeds to sow indoors in March and grow with confidence from seed

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Used at RHS Chelsea Flower Show
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Showing Seeds Sowing month inside or protected : March clear all
91 items
Stipa tenuissima

Best Seller

25% off

Stipa tenuissima
From £2.84
approx 30 seeds
9cm pot
2 litre pot
3 × 9cm pots
+ 2 more available
0.75 star 1 star 1 star 1 star 1 star 4.8 5 59 (59)
Digitalis purpurea f. albiflora

Best Seller

25% off

Digitalis purpurea f. albiflora
From £1.69
approx 250 seeds
9cm pot
3 × 9cm pots
6 × 9cm pots
0.5 star 1 star 1 star 1 star 1 star 4.6 5 10 (10)
Digitalis purpurea

Up to 30% off

Digitalis purpurea
From £2.09
approx 1000 seeds
9cm pot
3 × 9cm pots
6 × 9cm pots
0.75 star 1 star 1 star 1 star 1 star 4.9 5 7 (7)
Digitalis purpurea Sutton's Apricot

Best Seller

25% off

Digitalis purpurea 'Sutton's Apricot'
From £2.02
approx 150 seeds
9cm pot
3 × 9cm pots
6 × 9cm pots
0 star 0.5 star 1 star 1 star 1 star 3.4 5 8 (8)
Digitalis purpurea Excelsior Group

25% off

Digitalis purpurea Excelsior Group
From £2.62
approx 1000 seeds
9cm pot
3 × 9cm pots
6 × 9cm pots
0 star 1 star 1 star 1 star 1 star 4.1 5 9 (9)
Digitalis × mertonensis

25% off

Digitalis × mertonensis
From £3.37
approx 1000 seeds
9cm pot
3 × 9cm pots
6 × 9cm pots
0.25 star 1 star 1 star 1 star 1 star 4.3 5 4 (4)
Angelica gigas

25% off

Angelica gigas
From £2.99
9cm pot
2 litre pot
3 × 9cm pots
3 × 2 litre pots
+ 1 more available
0.5 star 1 star 1 star 1 star 1 star 4.5 5 34 (34)
Antirrhinum majus Admiral White

25% off

Antirrhinum majus 'Admiral White'
£3.99 £2.99
approx 50 seeds
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Calendula officinalis Indian Prince (Prince Series)

25% off

Calendula officinalis 'Indian Prince' (Prince Series)
£2.69 £2.02
approx 100 seeds
0.75 star 1 star 1 star 1 star 1 star 4.8 5 5 (5)
Calendula officinalis Sherbet Fizz

25% off

Calendula officinalis 'Sherbet Fizz'
£2.99 £2.24
approx 100 seeds
0 star 1 star 1 star 1 star 1 star 4.0 5 1 (1)
Tropaeolum majus Ladybird Rose

25% off

nasturtium - Tropaeolum majus 'Ladybird Rose'
£3.49 £2.62
approx 30 seeds
Antirrhinum majus Appleblossom

25% off

Antirrhinum majus 'Appleblossom'
£3.29 £2.47
approx 20 seeds
Antirrhinum majus Madame Butterfly Bronze White

25% off

Antirrhinum majus 'Madame Butterfly Bronze White'
£3.49 £2.62
approx 25 seeds
Antirrhinum majus Madame Butterfly Cherry Bronze

25% off

Antirrhinum majus 'Madame Butterfly Cherry Bronze'
£3.49 £2.62
approx 25 seeds
Antirrhinum majus Madame Butterfly Red
Antirrhinum majus 'Madame Butterfly Red'
£3.49
approx 25 seeds
Aquilegia vulgaris William Guiness

25% off

Aquilegia vulgaris 'William Guiness'
£3.99 £2.99
approx 40 seeds
Calendula officinalis Orange King

25% off

Calendula officinalis 'Orange King'
£2.49 £1.87
approx 150 seeds
Calendula officinalis Snow Princess

25% off

Calendula officinalis 'Snow Princess'
£2.89 £2.17
approx 100 seeds
Centaurea nigra

25% off

Centaurea nigra
From £2.24
approx 20 seeds
9cm pot
3 × 9cm pots
6 × 9cm pots
1 star 1 star 1 star 1 star 1 star 5.0 5 5 (5)
Digitalis purpurea Pam's Choice

25% off

Digitalis purpurea 'Pam's Choice'
£3.49 £2.62
approx 200 seeds
Eupatorium cannabinum

25% off

Eupatorium cannabinum
From £2.24
approx 200 seeds
0 star 0 star 1 star 1 star 1 star (1)
Hordeum jubatum

25% off

Hordeum jubatum
£2.89 £2.17
approx 100 seeds
Lathyrus odoratus Top Hat

25% off

Lathyrus odoratus 'Top Hat'
From £2.24
approx 20 seeds
Lathyrus odoratus Winston Churchill

25% off

Lathyrus odoratus 'Winston Churchill'
From £2.62
approx 20 seeds
Lathyrus × hammettii Erewhon

25% off

Lathyrus × hammettii 'Erewhon'
From £2.62
approx 20 seeds
Lunaria annua Corfu Blue

New

25% off

Lunaria annua 'Corfu Blue'
£3.29 £2.47
approx 20 seeds
Lunaria annua var. albiflora

25% off

Lunaria annua var. albiflora
£2.99 £2.24
approx 100 seeds
Tropaeolum Baby Rose

25% off

nasturtium - Tropaeolum 'Baby Rose'
£2.99 £2.24
approx 30 seeds
1 star 1 star 1 star 1 star 1 star (1)
Tropaeolum majus Cherry Rose Jewel

25% off

nasturtium - Tropaeolum majus 'Cherry Rose Jewel'
£3.99 £2.99
approx 30 seeds
Tropaeolum majus Peach Melba

New

25% off

nasturtium - Tropaeolum majus 'Peach Melba'
£3.29 £2.47
approx 20 seeds
Nicotiana Whisper Mixed F1

25% off

Nicotiana 'Whisper Mixed' F1
From £2.24
approx 70 seeds
0.75 star 1 star 1 star 1 star 1 star (13)
Nicotiana alata Grandiflora

25% off

Nicotiana alata 'Grandiflora'
£2.99 £2.24
approx 700 seeds
0.75 star 1 star 1 star 1 star 1 star (3)
Nicotiana mutabilis

25% off

Nicotiana mutabilis
£2.79 £2.09
approx 100 seeds
1 star 1 star 1 star 1 star 1 star (3)
Rhodochiton atrosanguineus

25% off

Rhodochiton atrosanguineus
£3.99 £2.99
approx 10 seeds
Scabiosa atropurpurea Black Knight

25% off

Scabiosa atropurpurea 'Black Knight'
£3.79 £2.84
approx 75 seeds
1 star 1 star 1 star 1 star 1 star (1)
Scabiosa atropurpurea Fata Morgana

25% off

Scabiosa atropurpurea 'Fata Morgana'
£3.49 £2.62
approx 75 seeds
1 star 1 star 1 star 1 star 1 star (1)
Trifolium repens

25% off

Trifolium repens
£2.79 £2.09
approx 750 seeds
Viola odorata

25% off

Viola odorata
From £2.47
approx 50 seeds
9cm pot
3 × 9cm pots
6 × 9cm pots
1 star 1 star 1 star 1 star 1 star (2)
Linaria maroccana Licilia collection

25% off

Linaria maroccana 'Licilia collection'
£5.98 £4.48
2 packets of seeds
Linaria purpurea Canon Went

25% off

Linaria purpurea 'Canon Went'
From £2.24
9cm pot
3 × 9cm pots
6 × 9cm pots
0.5 star 1 star 1 star 1 star 1 star (2)
Achillea millefolium

Best Seller

25% off

Achillea millefolium
From £2.24
approx 400 seeds
9cm pot
3 × 9cm pots
6 × 9cm pots
1 star 1 star 1 star 1 star 1 star (2)
Ajuga reptans

25% off

Ajuga reptans
£2.99 £2.24
approx 50 seeds
1 star 1 star 1 star 1 star 1 star (3)
Lathyrus odoratus var. nanellus Pink Cupid

25% off

Lathyrus odoratus var. nanellus 'Pink Cupid'
From £2.02
approx 20 seeds
Limnanthes douglasii

25% off

Limnanthes douglasii
£2.49 £1.87
approx 125 seeds
1 star 1 star 1 star 1 star 1 star (1)
Linaria purpurea

New

25% off

Linaria purpurea
£2.99 £2.24
approx 100 seeds
Linaria purpurea Springside White

New

25% off

Linaria purpurea 'Springside White'
£3.49 £2.62
approx 40 seeds
Mentha spicata

25% off

mint - spearmint
From £2.24
approx 300 seeds
9cm pot
2 + 1 FREE 9cm pots
1 star 1 star 1 star 1 star 1 star (1)
Salvia officinalis

25% off

sage common
From £2.09
approx 35 seeds
9cm pot
2 + 1 FREE 9cm pots
Origanum vulgare subsp. hirtum

25% off

oregano - Greek
£2.79 £2.09
approx 1000 seeds
1 star 1 star 1 star 1 star 1 star (1)
French parsley

25% off

parsley 'French flat'
£2.49 £1.87
approx 300 organic seeds
Petroselinum crispum Extra moss curled

25% off

parsley 'Extra moss curled'
From £1.64
approx 500 seeds
9cm pot
2 + 1 FREE 9cm pots
0.75 star 1 star 1 star 1 star 1 star (3)
Petroselinum crispum var. neapolitanum

25% off

parsley 'Italian Giant'
From £1.87
approx 300 organic seeds
9cm pot
2 + 1 FREE 9cm pots
0 star 0 star 0 star 0 star 1 star (1)
Origanum vulgare

New

25% off

marjoram - wild marjoram
£2.49 £1.87
approx 200 seeds
1 star 1 star 1 star 1 star 1 star (2)
aubergine Listada di Gandia

25% off

aubergine 'Listada di Gandia'
£2.99 £2.24
approx 20 seeds
carrot Chantenay Royal

25% off

carrot 'Chantenay Royal'
£2.29 £1.72
approx 2000 seeds
celery Golden Self-blanching

25% off

celery 'Golden Self Blanching'
£2.49 £1.87
approx 1000 seeds
chilli Basket of Fire F1

25% off

chilli 'Basket of Fire' F1
£3.99 £2.99
approx 10 seeds
chilli Carolina Reaper

25% off

chilli 'Carolina Reaper'
£3.99 £2.99
approx 5 seeds
chilli Scotch Bonnet

25% off

chilli 'Scotch Bonnet'
From £2.09
approx 50 seeds
chilli Spangles

25% off

chilli 'Spangles'
£3.49 £2.62
approx 10 seeds
chilli Trinidad Perfume

25% off

chilli 'Trinidad Perfume'
£3.49 £2.62
approx 10 seeds
courgette Gold Rush

25% off

courgette 'Gold Rush' F1
£2.99 £2.24
approx 10 seeds
courgette Romanesco

25% off

courgette 'Romanesco'
From £1.69
approx 15 seeds
approx 45 seeds
0.5 star 1 star 1 star 1 star 1 star (2)
Luffa cylindrica

25% off

loofah gourd - grow your own sponges
£2.99 £2.24
approx 10 seeds
pumpkin Marina di Chioggia

25% off

pumpkin 'Marina di Chioggia'
£3.49 £2.62
approx 9 seeds
spring onion North Holland Blood Red

25% off

spring onion 'North Holland Blood Red'
£2.39 £1.79
approx 250 seeds
1 star 1 star 1 star 1 star 1 star (1)
squash Tromba of Albenga

25% off

squash 'Tromba d'Albenga'
£3.29 £2.47
approx 25 seeds
tomato Marmande

25% off

tomato (beefsteak) 'Marmande'
£2.99 £2.24
approx 20 seeds
tomato Gardeners Delight

25% off

tomato (cherry) 'Gardeners Delight'
From £1.87
approx 50 seeds
0.75 star 1 star 1 star 1 star 1 star (3)
tomato Sungold F1

25% off

tomato (cherry) 'Sungold' F1
From £2.62
approx 10 seeds
0 star 1 star 1 star 1 star 1 star (2)
tomato Sweet Aperitif

25% off

tomato (cherry) 'Sweet Aperitif'
From £2.62
approx 10 seeds
0 star 0 star 1 star 1 star 1 star (2)
tomato Tumbling Tom Red

Best Seller

25% off

tomato (cherry) 'Tumbling Tom Red'
From £2.47
approx 12 seeds
0.75 star 1 star 1 star 1 star 1 star (7)
tomato Nagina

New

25% off

tomato (plum) 'Nagina' F1
£2.69 £2.02
approx 8 seeds
tomato Roma VF

25% off

tomato (plum) 'Roma'
£3.29 £2.47
approx 45 seeds
tomato San Marzano

25% off

tomato (plum) 'San Marzano'
£4.49 £3.37
approx 50 seeds
1 star 1 star 1 star 1 star 1 star (2)
tomato Ailsa Craig

25% off

tomato (standard) 'Ailsa Craig'
£2.29 £1.72
approx 75 seeds
tomato Alicante

25% off

tomato (standard) 'Alicante'
£2.29 £1.72
approx 75 seeds
tomato Shirley F1

25% off

tomato (standard) 'Shirley' F1
From £2.24
approx 15 seeds
Welsh onion

25% off

Welsh onion
From £2.24
approx 250 seeds
1 star 1 star 1 star 1 star 1 star (1)
Lunaria annua Chedglow
Lunaria annua 'Chedglow'
From £3.74
available to order from summer
0.75 star 1 star 1 star 1 star 1 star (3)
Antirrhinum majus Madame Butterfly Pink
Antirrhinum majus 'Madame Butterfly Pink'
£4.49 £3.37
available to order from autumn
Award-winning sweet pea collection
Award-winning sweet pea collection
£10.27 £7.48
available to order from autumn
Aquilegia vulgaris Pink Petticoat

New

Aquilegia vulgaris 'Pink Petticoat'
£3.99 £2.99
available to order from autumn
Aster chinensis Silver Blue

New

Aster chinensis 'Silver Blue'
£4.99 £3.74
available to order from autumn
Lathyrus odoratus Dorothy Eckford
Lathyrus odoratus 'Dorothy Eckford'
£3.29 £2.47
available to order from autumn
Lathyrus odoratus Almost Black
Lathyrus odoratus 'Almost Black'
£2.99 £2.24
available to order from autumn
Lathyrus odoratus Eclipse
Lathyrus odoratus 'Eclipse'
£2.99 £2.24
available to order from autumn
Lathyrus odoratus Lisa Marie
Lathyrus odoratus 'Lisa Marie'
£3.89 £2.92
available to order from autumn
chilli Padron
chilli 'Padron'
£3.99 £2.99
available to order from autumn
1 star 1 star 1 star 1 star 1 star (1)
tomato Brandywine
tomato (beefsteak) 'Brandywine'
£2.99 £2.24
available to order from autumn
tomato Gigantomo F1
tomato (beefsteak) 'Gigantomo' F1
£3.49 £2.62
available to order from autumn
1 star 1 star 1 star 1 star 1 star (1)

Seeds to sow indoors in March make it easier to choose seeds that fit the way you want to garden. Starting from seed gives you more choice, good value and the satisfaction of watching plants grow from the very beginning. Whether you are filling a few pots, planning a border, refreshing a patch of lawn or growing food for the table, the right seed choice helps you get moving with confidence.

At Crocus, the seed range is carefully selected to support everyday gardeners as well as those with a clear plan in mind. You can explore flower seeds, vegetable seeds, herbs, wildflower mixes, lawn seed and practical growing kits, with product details that help you compare timing, space, colour and conditions before you buy.

Seeds to sow indoors in March help you plan your seed trays, pots and outdoor sowing without the guesswork. Use the timing as a simple guide, then check each product page for the best sowing notes before you start.

Order online and have your seeds delivered to your door, ready for your next sowing session. With Crocus expertise behind the range, you can choose popular varieties, plan useful combinations and build a garden that feels more productive, more colourful and easier to manage.

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© Crocus.co.uk Ltd 2026. All rights reserved.