SuccessfulSelfWateringContainers's Blog

Self Watering Containers: How Does the Plant Get the Water?

“In a self watering container, how does the plant get the water?” is one of the questions I get asked all the time.  Since there is no wick or obvious way for the water to move from the reservoir into the soil or the plant, it all seems very mysterious. The simple answer is it all happens through the physical phenomenon of capillary action. The way 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.

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