Annual and dainty Baby's Breath is actually quite a tough plant.
Season & Zone
Exposure: Full sun to partial shade
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.
Just cover the small seeds, and thin or space to 15-20cm (6-8"). Crowded plants bloom better.
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.