A plant growing device 4 having an opening comprises a water reservoir 10 comprising a hydrophilic material and a hydrophobic material positioned around the hydrophilic material comprising an air chamber 12, the device further comprising a removable receptacle (2 figure 1B) located in the opening into which a plant or seed maybe positioned or which may already contains a plantlet germinated elsewhere. A water inlet may be provided which maybe in fluid communication with the reservoir. The device may also include a moisture sensor in communication with the reservoir.
