The euphorbia trigona is 15 years old with 220cm tall and was repotted early this year. It has been growing very quick since repotted. We are living in Sweden with only few hour daylight during winter time plus my family accidentally overwater it that make the plant turns brown and part of the root got rotten recently. It is too heavy to take it out to dry the soil, can we dig out part of the soil and mix with some drier one? Thanks for any recommendations.
