Insecticide soap must be purchased. Add a tablespoon to a spray can with cool, water. Shake it well and spray the succulent. A turkey baster can be used to spray the succulent with a fine water solution without disturbing its roots. Although most gardeners only use tap water for their irrigation, some gardeners prefer rainwater because of its healing qualities. But you can still create an "Echeveria Garden" by using variations of the same species, or even using completely different varieties. Use shallow pots, hollows, or stones with natural depressions.