Specialty Gardening: Can I re-use potting mix?, 1 by revclaus

revclaus wrote:
What Steve said. I also get a bag of Vermont Compost and mix it in with my old potting soil. You can't be changing your potting soil every year when you grow perennials. My clematises wouldn't appreciate being disturbed. What I do with them is take a bamboo stake and poke holes all the way to the bottom, about two dozen or so. Then I pour the Vermont Compost into the holes and also add about a two inch layer at the top. I'm sure Tapla would not approve, but it seems to work for me. Here's one that I've done this with for several years. I have it in a large pickle crock about 13" across by 20" deep. I do use fresh soil for annuals in all my containers.