Plants get their water from the soil via their roots, and a small proportion is taken through their leaves (but remember that some plants cannot tolerate water touching their leaves). Because plant containers are small, their roots only have a small amount of potting soil to draw water from. This is why the container gardener has to carefully watch plants for signs of underwatering (and overwatering) and water often, especially on hot, sunny and windy days, when plants and their potting soil can lose dangerous amounts of water.
As balcony container gardeners, we buy some plant containers and bags of potting soil from our local garden center, and then we grow our favorite container plants. Simple. But when we purchase bags of dirt, what are we getting exactly, and why can’t we just dig up some dirt from the ground and use that instead?
By Tyler Weaver
For balcony container gardeners who live in a city or have limited space, look no further than the balcony to begin processing food scraps into compost for the container plants in the garden. While a balcony is usually reserved as a comfortable, relaxing area for enjoying a drink or reading a book, just a small portion of it can be used to process your waste.