SuccessfulSelfWateringContainers's Blog

Self Watering Containers: How Does the Plant Get the Water

When I give presentations and workshops, an area of vibrant discussion is how do the plants get the water.  You see, in my system there is no wick or any obvious way for the water to move from the reservoir into the soil or the plant.  The simple answer is it all happens through the physical phenomenon of capillary action.  Like plants in an oasis find the scarce water, your plants sense and seek the water in the reservoir.  Some plants will actually send roots into the reservoir while others won’t.  In any event, you’ll notice that the soil in your container will become evenly moist as long as you remember to refill the reservoir.  The plant will do the rest of the work to get the water into its own system.