Q.schefflera is dropping leaves
My otherwise healthy schefflera has begun to drop leaves on one of its two main stems. They’re not turning yellow before they turn off; it’s happening mainly on just one of the main stems and it’s still getting new growth on both the affected stem and other areas.
When I got laid off (with 1/2 my office), I moved it from my very sunny office to my home in November, and the whole plant was in a corner with low light, and the affected stem was in the corner with even lower light. I moved it in January to my new office, and the leaves started to fall when I picked it up. I took it outside on a cold day, but it wasn’t in the cold for more than a minute or two. It’s now sitting in an area that is mostly lit by fluorescent light, but there is a large window nearby for natural light, but the blinds are closed most of the time. Over 2 weeks later, it’s still losing leaves.
This plant is the best plant I’ve ever had. It was tiny when I got it 3 years ago, and after 2 pot changes, it’s gotten quite large and started to grow babies. I think the problem is lighting, but I don’t know if I could have shocked it from the cold or if it just needs fertilized. I really don’t want it to die on me or look maimed. Can you PRETTY PLEASE help me out with a rehabilitative plan?? I would be forever grateful.
Thank you,
Christina

The most common problem with Schefflera is over watering.
Make sure the soil is drying out between waterings.
Your plant will need a bright, indirect light.
Moving the plant and changing environment is likely much of the cause of stress to the plant.
Frozen plant leaves generally will turn black and fall off. This can take days to happen.
Here is a link to refresh you on the care requirements.
https://www.gardeningknowhow.com/houseplants/schefflera/schefflera-plant-care.htm