These mini greenhouses come complete with biodegradable peat pellets, germination tray, and a humidity dome. They are ideal for starting your seeds indoors in a jiffy! Just put a few seeds in each pellet and add water. Each pellet has its own compartment. All you have to do is put the dome lid on top and you have ideal temperature and climate settings to propagate your seedlings! The peat pellets expand into a self contained soil container and can be planted directly into the ground or planter pot. No mess, no fuss. This is the best and easiest way to start plants early.