Trifolium rubens 'Frosty Feathers'
Yes, it's clover but an ornamental one. It's definitely not the same as that stuff taking over your lawn and it isn't invasive.
Instead it's an attractive but undemanding plant for very poor, thin, hot, chalky soils.
The deep green, clover like foliage forms a small clump but the real attraction is the 6cm long fluffy, pure white flowers on 60cm stems that can be sheared off to produce a second flowering.
For something very different try this in a large pot with annual poppies.
Could be a new trend or your gardening friends may think you've definitely lost it.
Photo: Blackstem Plants
Dry, chalky, poor