GERANIUM ROBERTIANUM 'CELTIC WHITE'
This low spreading clump studded with many prostrate pure white stars is perfect on a rockery wall or path edge. This is the very dwarf form with diminished leaves and stems and which has no pigment at all other than green chlorophyll. Although it may gently self-seed, it does so very rarely indeed and not enough to become a nuisance.
For best results, sow immediately onto a good soil-based compost. Cover the seeds with fine grit or compost to approximately their own depth. They can be sown at any time, and germination can sometimes be quicker if kept at 15 to 20 degrees C. We sow most seeds in an unheated greenhouse and wait for natural germination, as many seeds have built-in dormancy mechanisms, often waiting for natural spring germination, hence giving them a full season of growth.