Rosemary prefers warm weather and high alkaline, rocky soil. This can be hard to provide year round in many places, so instead you can grow rosemary indoors in a container. You can set it outdoors during the summer months and bring it in to over winter as well. Rosemary leaves and sprigs are used in many dishes, either dried and ground or fresh (remove leaves before serving if you leave them whole). Rosemary can be difficult to start from seed, but plants you start from seed are stronger and healthier than those started from cuttings.
Mix a small handful of sand with seed-sowing compost in a container or pot. Moisten the soil.
Sprinkle the seeds generously on top of the growing mix, because rosemary has a low germination rate. Cover loosely with a thin layer of soil and place in a warm, sunny window.
Keep the soil moist until the seeds germinate. This can take 14 to 21 days and in some cases up to three months.
Allow the soil to dry out between waterings after the seeds have sprouted, only watering when the soil feels dry to the touch. Spray the leaves with a spray bottle when you water.
Keep the rosemary in a warm window or move it outside in the summer months. Open the window so that the plant can get a nice breeze on calm days.
Add two drops of liquid fertilizer to your watering can every three weeks and spray the leaves with a spray bottle. Trim the rosemary to help it maintain its shape as it grows.