These perennial sages are prized for their showy spires of double-lipped flowers. Tolerant of most soils so long as they are well-drained, these sun-loving, long-flowering plants will take light shade, and are ideal for naturalised planting schemes.
The RHS is offering three each of the following varieties:
* Salvia nemerosa Caradonna, which has violet-blue flower spikes above compact grey-green foliage from early summer, reaching 50cm;
* Salvia nemerosa Sensation Rosa, with masses of rose-pink flowers throughout summer, reaching 30cm;
* Salvia x sylvestris Schneehugel, which has glowing white flowers that often, when deadheaded, will produce a second flush well into autumn, reaching 45cm.
Each of these collections costs £15.99, and the nine-strong collection costs £38.97, saving £9, but Homes & Property readers can save a further 15 per cent by entering code 300411 at the checkout on rhsplants.co.uk.
Offer closes April 26, 2011.