Actually quite a tough plant. Ordinary soil will do. Be sure it is not too rich, and avoid feeding plants. Cut back after flowering to encourage a second bloom. This species is well suited to xeriscaping. Follow these handy How to Grow Gypsophila Baby’s Breath instructions and grow these delicate blooms.Plants bloom quickly from seed, so start outdoors, direct sowing in early spring in cool soil, when a light frost is still possible… Around March 15th on the coast. In mild winter areas, it can also be direct sown in late autumn. Germination takes 10-20 days. Sow every 3-4 weeks until July for continuous blooms.