Hello, So I turn to here after multiple attempts, numerous hours of reading on various different issues, trying to monitor, and still weeks of consistent leaf drop. Background: ~2 year old meyer sapling, bough tin Oct 2018 Kept in container entire life Live in San Francisco Bay Area, specific East Bay (Hayward). So no freeing temperatures Last winter, I kept the tree outside. Lost 60-80% of leaves due to signs of nitrogen deficiency Flourished Summer 2019, lots of growth Summer soil mix was drying very quickly (everyday), so remixed a slow draining soil and repotted. Brought inside this winter, initial great growth, then slow-ish consistent leaf drop for ~10 weeks Solutions tried: Bringing inside as I thought last year's nitrogen deficiency was due to dormant roots. Fertilizing tree occasionally Monitored soil temp, but showing ~60-70 F Gravel dish for humidity Grow light set for 12 hours originally, now 6, hours of light Watering only when soil is dry 2" deep I usually have such a green thumb and so my hubris has kept me from seeking help. But now I am desperate, I have never had such a persnickety plant! The final thing I should call out is that the new potting mix I concocted has been drying out very slowly indoors. Outdoors last summer, I was still watering every 2-4 days. But inside, it is taking my soil 2-3 weeks to dry out. Do I have root rot now? I am hesitant to pull the tree out and stress it anymore to inspect the roots!