May Monthly Grange Meeting Topic:
It’s called Self Watering, NOT because you don’t ever have to water, but because the plant pulls the water on the schedule IT determines.
It self-waters from the pool you provide (and refill). We saw a Slide show on how to create your own productive container garden, using Self-Watering Containers!
By creating a water reservoir, an air space, and utilizing slow release organic fertilizers, production increases dramatically as the stress on the plant is decreased.
Critical to the technique is to provide an overflow opening in the outer/bottom tub so that water cannot fill up the air space. To allow the roots to exchange air easily, many 1/4″ holes perforate the base of the inner tub. The tub is lined with landscape
fabric, except where the wicking pot is, and filled with potting soil. Roots need air for high performance (exchanging CO2 & O2) and this method allows for easy air access.
The wicking pot, sits in the 3-4″ water reservoir , and is filled with the potting soil mixture which touches the inner tub soil; it enables the plant to pull up water as it needs it. Landscape fabric is utilized to prevent the soil from falling through the air holes in the upper tub or leaking out of the wicking pot, and filling the water reservoir.
The water reserve tub is filled every 2-4 days, depending on outdoor temperatures & plant size.
It’s called Self Watering, NOT because you don’t ever have to water, but because the plant pulls the water on the schedule IT determines. It self-waters from the pool you provide (and refill).
A YouTube link that shows how to build: Variation of SWC – home video
An overview page Pot within a Pot (water reservoir) method can be found at this link: SWC – Self-Watering Containers