Volunteer (botany)

In gardening and agronomic terminology, a volunteer is a plant that grows on its own, rather than being deliberately planted by a farmer or gardener. Volunteers often grow from seeds that float in on the wind, are dropped by birds, or are inadvertently mixed into compost. Unlike weeds, which are unwanted plants, a volunteer may be encouraged by gardeners once it appears, being watered, fertilized, or otherwise cared for. The action of such plants – to sprout or grow in this fashion – may also be described as volunteering.