When someone has discovered Jesus as Lord and Savior now we can help them plant a church. After they come to know Jesus you help them share Jesus with their relationships and gather a group of interested in discovering Jesus. The new disciple begins to reach their friends and family, while you model and assist how to do it. Once they begin to obey and establish a small gathering only stay for 3-4 weeks. You leaving (but still coaching) helps establish them as the leader and increases ownership. Sometimes the Spirit leads us to bring them to our home church and not plant so always be listening to what Jesus is saying.