Question
I have 3 small potted citrus trees that I bought as rooted cuttings. 2 of them are lime (sorry I don't remember the exact name) and one is a Meyer Lemon. I had them outside for the summer and brought them in for the winter as I live in Alberta Canada. They did fine for 7 months and then the lemon and 1 of the limes had their leaves turn yellow and drop. I thought that may be from the low light but then the top of the trunk (which is really just a stem because they are so young) started to turn black. I cut the stem back to a healthy section and hoped for the best but now the new previously healthy section has started to turn black as well. The base of the stem looks fine but it seems to be rotting from the top down. The soil I have them in is not ideal because I think it holds moisture too long but I was afraid to repot them now they are in distress. Is there anything I can do to save them?

Answer
Hi Suzanne, A citrus should have yellow leaves during the time it is producing fruit or blooms.  If your plant is sitting in a basin to collect water, it is rotting.  I would for sure change the soil and add large wood chips or foam from a meat wrapper broken up so the roots of the citrus can breath if you water too much.  Too little is yellow leaves unless above is the case.  kathy