The present invention relates to an apparatus for growing crystals. The apparatus comprises a chamber and a crucible being arranged in a heatable accommodation space of the chamber, wherein the crucible comprises an inner volume which is configured for growing crystals inside. The crucible comprises a bottom from which respective side walls extend to a top section of the crucible. The crucible comprises at least one a deposition section which is configured for attaching a seed crystal, wherein the deposition section is formed on at least one of the side wall and the top section of the crucible.