It will normally need water to establish when planted, and will perform better with moderate water. Under prolonged drought any plant can suffer and die so irrigation requirements should be considered when setting up a commercial plantation. The main requirement for lavender to perform well is good drainage. Excess rain is not the critical factor but how well the site is drained. A sloping site not only drains better, but also is visually more pleasing for a tourism aspect.
Lavender is a relatively pest free plant.
No real research has been carried out into pests on lavender, as so far the incidence of pests does not warrant the cost. New lavender shoots may be eaten by sheep and other animals in early spring but as the oil content of the plant develops this ceases. Planting distances and densities are always subject to query but are mainly dependant on harvesting and cultivation machines. Main current uses for Lavender in Industry are oil, fresh flowers, dried flowers, stripped and dried flower heads. Dried flowers are sold in bunches as decoration on their own, or used in craft work for decoration.