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.

RHS Chelsea Flower Show plant of year
Planting combinations
Ground cover
Used at RHS Chelsea Flower Show
Cucamelon

25% off

Helleborus × hybridus Pretty Ellen collection
Hellebore Pretty Ellen collection
From £29.99
available to order from summer
Phyllostachys nigra
Phyllostachys nigra
From £39.99
available to order from spring 2027
Helleborus × hybridus

Best Seller

Helleborus × hybridus
From £9.99
available to order from spring 2027
Penstemon Elmley

New

Penstemon 'Elmley'
From £8.99
available to order from spring 2027
Penstemon Pensham Bilberry Ice (Pensham Series)

New

Penstemon 'Pensham Bilberry Ice' (Pensham Series)
From £8.99
available to order from spring 2027
Penstemon heterophyllus Heavenly Blue

New

Penstemon heterophyllus 'Heavenly Blue'
From £8.99
available to order from summer