A planter having a body (1) suitable for receiving a volume of plant growth medium and the root structure of a plant (2), the planter having a lower opening (4), a retainer (6) which can removably engage the lower opening to reduce the effective size of the lower opening, and a reservoir (9) suitable for holding a body of fluid (10) such that the fluid can gradually move from the reservoir into the planter's body to water and/or nourish a plant when planted within the planter, the planter being formed such that when it is in use it can be secured in an elevated disposition with the root structure of a plant contained within the body and a stem and/or foliage of the plant passing through the lower opening (4) and through the retainer (6) such that the plant is oriented in a downwards disposition.