You can plant lavender in spring or fall in well-drained, slightly alkaline, sandy soil. Planting on mounds or in raised beds can help to promote good drainage if your soil isn't ideal. Select a sunny location, allow enough space for growth and good air circulation and plant with other plants that have similar water requirements. Add about one-half cup each of bone meal and chicken manure into the soil, mix well; place the plants in the holes; give them some water and watch your lavender plant grow. Water plants regularly the first year to ensure that they root well in their new surroundings and then they will be hardy and drought tolerant and need little or no water. Generally, Mother Nature can take care of the watering. Be careful not to over water since they don't like "wet feet." Depending on the variety and mature size of the lavender plants you choose, the plants should be planted 2-4 feet apart. In general, the use of fertilizers in not necessary and may cause excessive leaf growth and minimal blooms. I do, however, dig-in a small amount of bone meal (1/2 cup each) around my plants each spring. Flower stalks should be cut off the first year to encourage plant development rather than flower production.