You can keep Worm Castings in a bag, clean bucket, or another container until you're ready to use them. They're full of beneficial soil bacteria and nutrients that are great for enriching soil.

Worm Castings can be stored for a long time without losing their effectiveness. They can stay fresh for up to a year if stored in a dry, cool place. However, the longer you store them, the less potent they become. If you plan to store them for a while, it's best to keep them in an airtight container to avoid moisture.