It is highly recommended to prune for several reasons, first because you will increase production, but also to prevent possible fungi in large buds. In outdoor cultivation it is necessary to use a structure to support the branches, or at least some tutors.If you want to plant Gelato Cake outdoors control the possible rains during the flowering, if you put it in flowerpot it is possible that you have to protect it at some point. If you grow in greenhouses you avoid the problem of rainfall, but it is still interesting to use preventive fungicides.