I charred wood before making garden boxes to prevent rot / termites- it didn’t work!
Last season I made 2 small garden boxes (3x4) and at the start of the season saw one had termites and rotted wood. I still used them, but when I made a 3rd box, I decided to use a torch and do the charred wood method to prevent rotting / termites. We are now 2 months in, and we’ve discovered termites in the box. I suppose it wasn’t charred enough?? (The wood is black). I’m so disappointed. I have more wood I was going to use to build more boxes but after this experience, I think I may go with metal or brick. Thoughts? A neighbor of mine who is big into gardening uses treated wood without issue but I’ve read mixed advice on this.