[header] How to raise earthworms [title] Choose a type of worm based on purpose and climate. [step] Determine your priorities regarding what you hope to achieve by raising worms. While many types of worms can be used for different purposes-such as both composting and fishing bait-choose a specific type based on the main reason you're raising worms. 
Furthermore, the climate in which you live is an important factor if you intend to raise worms outdoors. [substeps] Plan to sustain an environment that is moist and dark.