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Fully hardy flower seeds

Shop fully hardy flower seeds and grow confident colour from seed

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Used at RHS Chelsea Flower Show
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Showing Seeds Flower seed Hardiness : Fully hardy clear all
20 items
Panicum capillare Sparkling Fountain

25% off

Panicum capillare 'Sparkling Fountain'
£4.99 £3.74
approx 100 seeds
Papaver commutatum

25% off

Papaver commutatum
£2.79 £2.09
approx 500 seeds
0.5 star 1 star 1 star 1 star 1 star 4.5 5 4 (4)
Papaver dubium subsp. lecoqii Albiflorum

Best Seller

25% off

Papaver dubium subsp. lecoqii 'Albiflorum'
From £2.24
approx 50 seeds
0 star 0 star 1 star 1 star 1 star 3.0 5 1 (1)
Papaver rhoeas

25% off

Papaver rhoeas
£2.79 £2.09
approx 2000 seeds
Papaver rhoeas Amazing Grey

25% off

Papaver rhoeas 'Amazing Grey'
From £2.17
approx 250 seeds
0.5 star 1 star 1 star 1 star 1 star 4.5 5 2 (2)
Papaver rhoeas Bridal Silk

25% off

Papaver rhoeas 'Bridal Silk'
£3.49 £2.62
approx 500 seeds
Papaver rhoeas Mother of Pearl Group

25% off

Papaver rhoeas Mother of Pearl Group
£2.89 £2.17
approx 500 seeds
0 star 1 star 1 star 1 star 1 star 4.0 5 2 (2)
Papaver rhoeas Pandora

25% off

Papaver rhoeas 'Pandora'
£2.49 £1.87
approx 500 seeds
Papaver Rose Feathers

New

Papaver 'Rose Feathers'
£2.49 £1.87
available to order from autumn
Papaver somniferum (Laciniatum Group) Black Swan

25% off

Papaver somniferum (Laciniatum Group) 'Black Swan'
£2.99 £2.24
approx 500 seeds
Papaver somniferum (Paeoniiflorum Group) Black Paeony

25% off

Papaver somniferum (Paeoniiflorum Group) 'Black Paeony'
£3.49 £2.62
approx 500 seeds
Papaver somniferum Hungarian Blue

25% off

Papaver somniferum 'Hungarian Blue'
£2.99 £2.24
approx 500 seeds
Papaver somniferum Lauren's Grape

Best Seller

25% off

Papaver somniferum 'Lauren's Grape'
From £2.62
approx 100 seeds
3 × packets of 100 seeds
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Papaver somniferum Lilac Pompom

25% off

Papaver somniferum 'Lilac Pompom'
£2.19 £1.64
approx 200 seeds
0 star 0 star 0 star 0 star 1 star 1.0 5 1 (1)
Papaver somniferum Maanzaad

25% off

Papaver somniferum 'Maanzaad'
£2.99 £2.24
approx 300 seeds
Persicaria orientalis Cerise Pearls

25% off

Persicaria orientalis 'Cerise Pearls'
£3.99 £2.99
approx 100 seeds
Phacelia tanacetifolia

25% off

Phacelia tanacetifolia - green manure
£2.89 £2.17
25m² pack
1 star 1 star 1 star 1 star 1 star 5.0 5 3 (3)
Phlox drummondii Crème Brûlée

25% off

Phlox drummondii 'Crème Brûlée'
£2.49 £1.87
approx 200 seeds
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Poppy field collection of annuals

Best Seller

25% off

Poppy field collection of annuals
£4.99 £3.74
1g packet | seeds
Primula vulgaris

Best Seller

25% off

Primula vulgaris
From £2.24
approx 30 seeds
1 star 1 star 1 star 1 star 1 star 5.0 5 18 (18)

Our fully hardy flower seeds collection is designed to make growing from seed feel simple, useful and rewarding. These flower seeds help you add colour, texture and seasonal interest, whether you are filling gaps in a border, refreshing containers or planning a more productive cutting patch. Starting with seed is a flexible way to grow more for your money, and it gives you plenty of choice when shaping the look and feel of your outdoor space.

Choose from carefully selected varieties that suit different spaces, styles and levels of experience. You can look for reliable favourites, easy options for quick results, or more distinctive choices to add interest through the season. Clear product details help you understand where each seed works best, when to sow, and what kind of result to expect, so it is easier to choose with confidence.

At Crocus, our range is curated by people who understand real gardens and the practical decisions gardeners make. From popular flower seeds to more specialist choices, we focus on quality, useful information and convenient delivery to your door. Browse the range, pick the seeds that suit your plans, and start growing a garden that feels more colourful, personal and well put together.

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