Using worm castings on indoor plants! 1. Grab a small handful of finished castings from the bottom working tray of your worm farm. 2. Add these castings to a small watering can and dilute to he colour of weak tea. 3. Pour over your indoor plants! I like doing this once a week! Castings not only give beneficial nutrients to your plant, they also help to build healthy root systems and plant immunity! #Tumbleweed #harvest #worms #wormcasting #wormliquid | Tumbleweed