Aesculus californica

This is a very large spreading shrub (or low spreading tree) and needs a lot of space - the flowers are fragrant, creamy or rosy white and held in solid ‘candles’. The foliage is neat and attractive and the bark is chalky white (especially good in winter after the leaves fall). 

Given an open sunny well-drained site this will be one of the most magnificent woody plants we can grow. Hardly ever offered and I have no idea why it isn't better known. Young plants grown from conkers collected in California. 
Specimen size plants - £45 - collection only

Sanguisorba applanata

Not flowered here yet for some reason but an excellent foliage plant, reminiscent of a low spreading Melianthus or a giant Acaena. The flowers should be white bottle brushes, but are not the main reason for growing this plant. Suitable for any moist fertile soil in sun.
£6