In their natural habitat, Vanilla planifolia grows and climbs on trees and other support plants. If you are growing your vanilla plants outdoors, you will need to plant them near supportive plants or provide artificial support systems. Vanilla’s roots do not tolerate disturbances, so make sure your support is well-established and relatively permanent. Container-grown vanilla plants will require a sturdy stake made of wood, as this will mimic nature and provide a slight boost in moisture and humidity.