Erigeron Karvinskianus is an inexpensive, evergreen diehard that will remain in your garden forever. You can buy bigger specimens in 4-litre nursery bags, or smaller ones in seedling packs, and plant them as ground covers, in crevices, in the cracks in ‘dry walls’, and in the shallowest soil between pavers.
Once established, it has the ability to pop up all over the garden. Sometimes it takes a rest in warm weather and you end up thinking it has died, only for it to reappear and thrive. If you take good care of it, it will produce masses of tiny daisy flowers, transforming your garden into an exquisite fairy landscape.