A seed mix I bought from Johnsons seeds many years ago. I got a number of plants from the sowing, but was too late to transplant them so I got a mat withtwo different flower colours mixed together, pale pink and reddish pink. They have self seeded and produced plants in pink shades between the original two. It dislikes dry soil, so it needs to be planted where the soil doesn't dry out. Mine are happily growing on a slope where there seems to be ample moisture. They need good drainage though and can grow in full sun or partial shade. The photo shows one of the self seeded plants.