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Plants For Chalky Soil

Chalky soils (or those based on limestone) are usually alkaline, so have a pH above 7. They tend to be freely draining, stony and don’t hold onto nutrients very well. Therefore, to help your plants flourish, you should water regularly and dig in lots of composted organic matter as often as you can.

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Used at RHS Chelsea Flower Show
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Showing Soil type : Chalky soil clear all
24 items
Iris Caesar's Brother
Iris 'Caesar's Brother'
From £12.99
9cm pot
3 × 9cm pots
0.25 star 1 star 1 star 1 star 1 star 4.3 5 3 (3)
Iris Melbourne Hall Ghost

New

Iris 'Melbourne Hall Ghost'
£22.99
2 litre pot
Iris Silver Edge

30% off

Iris 'Silver Edge'
From £17.49
2 litre pot
3 × 2 litre pots
1 star 1 star 1 star 1 star 1 star 5.0 5 3 (3)
Bearded Iris collection

New

Bearded Iris collection
From £23.95
1 × collection | 3 rhizomes
2 + 1 FREE collections | 9 rhizomes
Iris collection
Iris collection
From £23.95
1 × collection | 3 rhizomes
2 + 1 FREE collections | 9 rhizomes
Iris Black Dragon
Iris 'Black Dragon'
From £7.99
1 × rhizome
3 × rhizomes
Iris Burgermeister
Iris 'Burgermeister'
From £7.99
1 × rhizome
2 + 1 FREE rhizomes
Iris Champagne Elegance
Iris 'Champagne Elegance'
From £7.99
1 × rhizome
3 × rhizomes
Iris Edith Wolford
Iris 'Edith Wolford'
From £7.99
1 × rhizome
2 + 1 FREE rhizomes
Iris English Cottage
Iris 'English Cottage'
From £7.99
1 × rhizome
2 + 1 FREE rhizomes
Iris Maid of Orange
Iris 'Maid of Orange'
From £7.99
1 × rhizome
3 × rhizomes
Sarah's Chelsea daisy susan combination
Sarah's Chelsea 'daisy susan combination'
From £54.96
available to order from spring 2027
Sarah's Chelsea lavender susan combination
Sarah's Chelsea 'lavender susan combination'
From £56.96
available to order from spring 2027
Sarah's Chelsea silver susan combination
Sarah's Chelsea 'silver susan combination'
From £56.96
available to order from spring 2027
Iris Benton Apollo
Iris 'Benton Apollo'
From £24.99
available to order from spring 2027
Iris Benton Diedre
Iris 'Benton Diedre'
From £24.99
available to order from spring 2027
Iris Benton Susan
Iris 'Benton Susan'
From £24.99
available to order from spring 2027
0 star 1 star 1 star 1 star 1 star 4.0 5 3 (3)
Iris Golden Edge
Iris 'Golden Edge'
From £24.99
available to order from spring 2027
Iris White Swirl
Iris 'White Swirl'
From £24.99
available to order from spring 2027
Iris foetidissima
Iris foetidissima
From £24.99
available to order from spring 2027
Iris unguicularis

New

Iris unguicularis
From £12.99
available to order from spring 2027
Iris Benton Menace
Iris 'Benton Menace'
From £24.99
available to order from summer
Iris sibirica Lime Street Blues

New

Iris sibirica 'Lime Street Blues'
From £12.99
available to order from autumn
Iris sibirica On Mulberry Street

New

Iris sibirica 'On Mulberry Street'
From £12.99
available to order from autumn

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