Shop

Information & Help

My account

crocus
Wish-list My wheelbarrow

Perennials

By type
Facing
How much sun
Soil type
Special conditions
Curated Collections
Flower colour
Evergreen / deciduous
Fragrance
Attractive to wildlife
Quick growing
Eventual size
Special features
Bulb planting time
RHS Chelsea Flower Show plant of year
Sowing month inside or protected
Sowing month outside
Multibuy packs
Ready made borders
Planting combinations
Hardy
Leaf colour
Ground cover
Position
Soil moisture
Used at RHS Chelsea Flower Show
Kitchen garden planting guidelines
Sort by popularity
All items
Showing Perennials Flowering month : May clear all
121 items
Iris Dusky Challenger
Iris 'Dusky Challenger'
From £19.99
available to order from summer
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Iris Flight of Butterflies
Iris 'Flight of Butterflies'
£24.99 £12.50
available to order from summer
Iris Golden Edge
Iris 'Golden Edge'
From £19.99
available to order from summer
Iris Jane Phillips
Iris 'Jane Phillips'
From £19.99
available to order from summer
1 star 1 star 1 star 1 star 1 star 5.0 5 3 (3)
Iris Natchez Trace
Iris 'Natchez Trace'
From £18.39
available to order from summer
Iris Sultan's Palace
Iris 'Sultan's Palace'
From £19.99
available to order from summer
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Iris Superstition
Iris 'Superstition'
From £18.39
available to order from summer
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Oenothera lindheimeri Whiskers Deep Rose
Oenothera lindheimeri 'Whiskers Deep Rose'
From £9.99
available to order from summer
Oenothera lindheimeri Cherry Brandy ('Gauchebra') (PBR)
Oenothera lindheimeri Cherry Brandy ('Gauchebra')
From £8.99
available to order from summer
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Verbascum (Cotswold Group) Gainsborough
Verbascum (Cotswold Group) 'Gainsborough'
From £11.99
available to order from summer
0.25 star 1 star 1 star 1 star 1 star 4.3 5 3 (3)
Zantedeschia aethiopica Flamingo (PBR)
Zantedeschia aethiopica 'Flamingo' (PBR)
From £14.99
available to order from summer
Zantedeschia aethiopica Snow White (PBR)
Zantedeschia aethiopica 'Snow White' (PBR)
From £14.99
available to order from summer
Iris sibirica Lime Street Blues

New

Iris sibirica 'Lime Street Blues'
From £10.39
available to order from autumn
Iris sibirica On Mulberry Street

New

Iris sibirica 'On Mulberry Street'
From £10.39
available to order from autumn
Iris Maid of Orange
Iris 'Maid of Orange'
From £7.99
available to order from winter
Persian wallflower collection
Persian wallflower collection
From £30.99
available to order from autumn
Erysimum Sugar Rush Orange (Sugar Rush Series)
wallflower 'Sugar Rush Orange' F1
From £3.99
available to order from winter
Erysimum Sugar Rush Primrose (Sugar Rush Series)
wallflower 'Sugar Rush Primrose' F1
From £3.99
available to order from winter
0.5 star 1 star 1 star 1 star 1 star 4.5 5 2 (2)
Erysimum Sugar Rush Purple Bicolour (Sugar Rush Series)
wallflower 'Sugar Rush Purple Bicolour' F1
From £3.99
available to order from winter
1 star 1 star 1 star 1 star 1 star 5.0 5 4 (4)
Erysimum Sugar Rush Red (Sugar Rush Series)
wallflower 'Sugar Rush Red' F1
From £3.99
available to order from winter
0 star 1 star 1 star 1 star 1 star 4.0 5 4 (4)
Iris ensata Rose Queen
Iris ensata 'Rose Queen'
£14.99 £11.99
available to order from summer
< Prev 1 2 Next >

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

Contact us
Terms
Privacy
Cookies

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