Keep worms happy year-round with this easy-to-build underground worm farm. Words: Nadene Hall Photos: Ben Elms Ben Elms (aka Dr Compost) has been experimenting with an underground worm-farm system suitable for hot and cold regions especially those such as Central Otago, which can experience freezing winters. The method (see instructions below) involves three to five bucket worm farms dug directly into the ground. Worms like to be warmer than 10°C and regular worm farms struggle in the colder months of the year when households are still producing the same amounts of veggie scraps, but worms are eating less. However, the