Free standard delivery when you spend £75 or more on full-priced plants | T&Cs apply

Our bulb shop is now open | Preorder now

Shop

Information & Help

My account

crocus
Wish-list My wheelbarrow

Plants For Clay Soil

Clay soil is usually rich in nutrients, but it can be hard to dig, and if it is very heavy, it can hold water for long periods of time. It may also take a long time to warm up in spring, which can slow down the new growth. If your clay soil is badly compacted, you can help improve the structure by digging in lots of sharp sand and composted organic matter.

By type
Facing
How much sun
Special conditions
Flowering month
Flower colour
Evergreen / deciduous
Fragrance
Attractive to wildlife
Quick growing
Eventual size
Special features
Sowing month inside or protected
Sowing month outside
Vegetable harvesting month
Vegetable groups
Multibuy packs
Hardy
Leaf colour
Ground cover
Position
Soil moisture
Used at Chelsea
Kitchen garden planting guidelines
Sort by popularity
Available items
Showing Soil type : Heavy clay clear all
32 items
Shades of purple - Allium collection

20% off

Shades of purple - allium collection
£21.40 - £42.80
1 × collection | 50 bulbs Delivered during September
2 + 1 FREE collections | 150 bulbs Delivered during September
Amethyst allium collection

20% off

Amethyst allium collection
£22.20 - £44.40
1 × collection | 50 bulbs Delivered during September
2 + 1 FREE collections | 150 bulbs Delivered during September
Best white allium collection

20% off

Best white allium collection
£15.56 - £31.12
1 × collection | 40 bulbs Delivered during September
2 + 1 FREE collections | 120 bulbs Delivered during September
Allium Miami

20% off

Allium 'Miami'
£4.79 - £9.58
5 × bulbs Delivered during September
10 + 5 FREE bulbs Delivered during September
Allium nigrum

20% off

Allium nigrum
£5.59 - £11.18
10 × bulbs Delivered during September
20 + 10 FREE bulbs Delivered during September
0.25 star 1 star 1 star 1 star 1 star 4.3 5 4
Allium siculum

20% off

Allium siculum
£10.39 - £24.00
25 × bulbs Delivered during September
75 × bulbs Delivered during September
1 star 1 star 1 star 1 star 1 star 4.9 5 9
Allium stipitatum Violet Beauty

20% off

Allium stipitatum 'Violet Beauty'
£3.99 - £7.92
5 × bulbs Delivered during September
10 + 5 FREE bulbs Delivered during September
1 star 1 star 1 star 1 star 1 star 5.0 5 4
Allium Globemaster

20% off

Allium 'Globemaster'
£6.39 - £35.98
1 × bulb Delivered during September
5 × bulbs Delivered during September
2 litre pot | 1 per pot available to order from autumn
2 + 1 FREE 2 litre pots available to order from autumn
0.75 star 1 star 1 star 1 star 1 star 4.8 5 10
Allium giganteum

20% off

Allium giganteum
£6.39 - £16.80
1 × bulb Delivered during September
3 × bulbs Delivered during September
1 star 1 star 1 star 1 star 1 star 5.0 5 9
Allium karataviense

20% off

Allium karataviense
£5.59 - £14.40
5 × bulbs Delivered during September
15 × bulbs Delivered during September
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Allium stipitatum Mount Everest

20% off

Allium stipitatum 'Mount Everest'
£4.39 - £35.98
1 × bulb Delivered during September
3 × bulbs Delivered during September
2 litre pot | 1 per pot available to order from autumn
2 + 1 FREE 2 litre pots available to order from autumn
0.75 star 1 star 1 star 1 star 1 star 4.7 5 3
Award-winning allium collection

20% off

Award-winning allium collection
£21.40 - £42.80
1 × collection | 50 bulbs Delivered during September
2 + 1 FREE collections | 150 bulbs Delivered during September
Striking allium collection

20% off

Striking allium collection
£11.00 - £22.00
1 × collection | 20 bulbs Delivered during September
2 + 1 FREE collections | 60 bulbs Delivered during September
Stunning Allium collection

20% off

Stunning allium collection
£14.20 - £28.40
1 × collection | 45 bulbs Delivered during September
2 + 1 FREE collections | 135 bulbs Delivered during September
Allium Ambassador

20% off

Allium 'Ambassador'
£7.99 - £21.52
1 × bulb Delivered during September
3 × bulbs Delivered during September
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Allium Mont Blanc

20% off

Allium 'Mont Blanc'
£5.59 - £14.40
1 × bulb Delivered during September
3 × bulbs Delivered during September
Allium amplectens Graceful Beauty

20% off

Allium amplectens 'Graceful Beauty'
£4.39 - £8.78
5 × bulbs Delivered during September
10 + 5 FREE bulbs Delivered during September
0 star 0 star 0.5 star 1 star 1 star 2.5 5 2
Allium convallarioides yellow-flowered

20% off

Allium convallarioides 'yellow-flowered'
£7.99 - £22.40
10 × bulbs Delivered during September
30 × bulbs Delivered during September
Ipheion uniflorum Wisley Blue

20% off

Ipheion uniflorum 'Wisley Blue'
£3.99 - £7.98
10 × bulbs Delivered during September
20 + 10 FREE bulbs Delivered during September
Allium Caméléon

20% off

Allium 'Caméléon'
£5.59 - £11.18
10 × bulbs Delivered during September
20 + 10 FREE bulbs Delivered during September
Allium Eros

20% off

Allium 'Eros'
£4.79 - £8.80
5 × bulbs Delivered during September
10 + 5 FREE bulbs Delivered during September
0 star 0.5 star 1 star 1 star 1 star
Allium Ambassador 'XXL bulb'

20% off

Allium 'Ambassador' (XXL bulb)
£10.39 - £28.80
1 × bulb | extra large Delivered during September
3 × bulbs | extra large Delivered during September
Allium Gladiator

20% off

Allium 'Gladiator'
£14.39 - £37.60
5 × bulbs Delivered during September
15 × bulbs Delivered during September
2 litre pot | 1 per pot available to order from autumn
2 + 1 FREE 2 litre pots available to order from autumn
1 star 1 star 1 star 1 star 1 star
Allium Mercurius (PBR)

20% off

Allium 'Mercurius' (PBR)
£5.59 - £20.00
1 × bulb Delivered during September
5 × bulbs Delivered during September
Allium caeruleum

20% off

Allium caeruleum
£6.79 - £13.58
20 × bulbs Delivered during September
40 + 20 FREE bulbs Delivered during September
0 star 1 star 1 star 1 star 1 star
Allium unifolium

20% off

Allium unifolium
£7.99 - £21.60
25 × bulbs Delivered during September
75 × bulbs Delivered during September
Welsh onion

25% off

Welsh onion
£2.24 - £15.98
approx 250 seeds In stock (shipped within 2-3 working days)
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
Seedballs chives seedbombs

25% off

Seedballs chives
£6.99 £5.24
20 seedballs in gift tube In stock (shipped within 2-3 working days)
onion Radar
onion 'Radar'
£3.49 - £9.00
50 × sets Delivered during September
150 × sets Delivered during September
0 star 0 star 0 star 1 star 1 star
spring onion North Holland Blood Red

25% off

spring onion 'North Holland Blood Red'
£2.19 £1.64
approx 250 seeds In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
spring onion White Lisbon

25% off

spring onion 'White Lisbon'
£2.29 £1.72
approx 800 seeds In stock (shipped within 2-3 working days)
0.5 star 1 star 1 star 1 star 1 star
onion Senshyu Semi-globe Yellow
onion 'Senshyu Semi-globe Yellow'
£3.49 - £9.00
50 × sets Delivered during September
150 × sets Delivered during September

Copyright © Crocus.co.uk Ltd 2025. All rights reserved.