I do, and here's how I do it. I take the old potting soil, put it in a 3 gallon pot, and pour a kettle of boiling water through to kill it, then I mix it half and half with new potting soil. Things grow very well in this, and I've never had any root rot problems from the old soil.
Didymo (Didymosphenia geminata), also known as rock snot, is a non-native invasive microscopic algae (diatom) that can produce large amounts of stalk material to form thick brown mats on stream bottoms.
Dymo is a manufacturer of a variety of labeling products, from label printers and label makers to labels and tapes. Their labeling products are designed to meet any of your personal and professional needs, keeping you organized both in and out of the office. Items 1 - 24 of 308. Show: