


Key lime help
I got this key lime tree as a gift in October. Initially, it lost most of its leaves, but stabilized towards the middle of winter. It was kept indoors under grow lights with the rest of my plants until about 6 weeks ago, when I moved it to my 3 season porch with the rest of my plants (I’m in Massachusetts so it wasn’t warm enough until then). It got a ton of new growth and leaves in early spring, lost a few, and was looking really good until a couple weeks ago. It started looking dry (taco leaves), so I watered it. It started looking a bit yellow and loosing leaves about a week later, and I noticed the soil was still quite wet.
I watered it maybe 5 times over the winter, maybe less honestly. The soil I initially potted it in seemed to be not as well-draining as it should have been. I decided to repot it with a better mixture, and when I did that tonight, this is how i found the roots - absolutely no root growth since I got it.
It’s in a better draining soil now (a commercial citrus mix amended with sand, perlite, and marble chips), but what else can I do to encourage root growth? Should I prune it? Would rooting hormone do anything at all on something that’s not a cutting?
Note: the pictures are outside, but I only had it fully outside for repotting. It’s been on the 3 season porch because the weather has been ridiculous this spring, but I definitely can put it outside if that’s better for it.