Thanks all! It keeps putting out new growth, but the dropping leaves when I came back from vacation had me worried. I'd forgotten to leave any instructions so a coworker just guessed on what to water where.
drdawg... You're right. I thought all the plants I'd brought to the office were the Miracle Gro ones, but I checked and this one and the croton are mixed soil. My spouse mixed two partial bags together - one my pricier Miracle Gro and the other the bag I use for my 8-year-old's balcony flower boxes (I still remember his puzzled look "But I was saving you space in the storage room!"). I'd forgotten when I repotted the croton and the scheflera that I'd used that mixed bag. It does have a lot of bark mixed in, and I think it was from Dollar General (a birthday gift from one of my teenagers, who thinks buying "dirt" is weird). It is an offshoot from a larger scheflera that got knocked over on the balcony at home and since it was already loose, I just repotted it separately. The "parent" plant is thriving outdoors.
