An automatic plant watering device 1 comprises a reservoir for holding water, a support portion for supporting a container 3 of earth above the reservoir in use and at least one projecting watering portion 5 extending from the reservoir and for extending into a supported container of earth in use. The watering portion 5 comprises a wicking material portion (52) for conveying water under capillary action from the reservoir towards a supported container of earth in use. The watering portion may comprise a spike portion which supports the wicking material. The spike portion may have a blade portion at its distal end for cutting through a container wall or wet earth and the blade portion may have a plurality of teeth.
