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 that Flower in May

Longer days and warmer nights mean that plants are bursting with energy. Zesty colours will come from spurges, rhododendrons and the early-flowering geraniums.

By type
Facing
How much sun
Soil type
Special conditions
Flower colour
Evergreen / deciduous
Attractive to wildlife
Quick growing
Eventual size
Special features
Sowing month outside
Multibuy packs
Hardy
Leaf colour
Ground cover
Position
Soil moisture
Used at Chelsea
Sort by availability
Available items
Showing Flowering month : May clear all
12 items
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)
Butterfly allium collection

10% off

Butterfly allium collection
£15.98 - £31.95
1 × collection | 45 bulbs Delivered during September
2 + 1 FREE collections | 135 bulbs Delivered during September
Chelsea Jewelled Allium collection

10% off

Chelsea jewelled allium collection
£13.46 - £26.91
1 × collection | 20 bulbs Delivered during September
2 + 1 FREE collections | 60 bulbs Delivered during September
Allium Mont Blanc

10% off

Allium 'Mont Blanc'
£6.29 - £16.20
1 × bulb Delivered during September
3 × bulbs Delivered during September
Allium Silver Spring

10% off

Allium 'Silver Spring'
£8.99 - £17.08
1 × bulb Delivered during September
2 + 1 FREE bulbs Delivered during September
Allium atropurpureum

10% off

Allium atropurpureum
£7.19 - £14.38
10 × bulbs Delivered during September
20 + 10 FREE bulbs Delivered during September
0.75 star 1 star 1 star 1 star 1 star 4.7 5 11
Allium moly

10% off

Allium moly
£6.29 - £12.58
50 × bulbs Delivered during September
100 + 50 FREE bulbs Delivered during September
0.25 star 1 star 1 star 1 star 1 star 4.3 5 4
Allium neapolitanum Cowanii Group

10% off

Allium neapolitanum Cowanii Group
£4.94 - £9.88
25 × bulbs Delivered during September
50 + 25 FREE bulbs Delivered during September
0 star 0.25 star 1 star 1 star 1 star 3.3 5 6
Allium roseum

10% off

Allium roseum
£7.19 - £14.38
25 × bulbs Delivered during September
50 + 25 FREE bulbs Delivered during September
1 star 1 star 1 star 1 star 1 star 5.0 5 6
Allium siculum

10% off

Allium siculum
£11.69 - £27.00
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 unifolium

10% off

Allium unifolium
£8.99 - £24.30
25 × bulbs Delivered during September
75 × bulbs Delivered during September

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