my calathea needs help!
Hi, I'm new to this forum, but I have a calathea medallion that appears to need help. I've had it for about a year and a half and it thrived on my front porch over summer. It's been in for probably a month or little more now, back in front of the some west-facing window it was in front of last winter. But it's been developing brown edges on the leaves, which I've attributed to possibly low humidity now that fall is upon us. So yesterday I started the humidifier up that runs in that room over winter. Humidity is about 50% at this point. I don't know if it's coincidental or not, but just this morning, I noticed 2 of the leaves are really starting to yellow....and they weren't like that yesterday. I believe it was last week that I gave it (along with my other house plants) some jobe fertilizer sticks that said they were slow-release and safe for most house plants. Now I read this morning that possibly that was a mistake?? Could that be why the leaves started yellowing in the last 24 hours? Should I attempt a re-pot? Or will it recover over time? (I tried to locate the sticks that were inserted to just below soil level, but I guess they've dissolved by now???)
Also, a number of the lower leaves in the last few weeks have been curling and dying. :( :( And so I keep cutting them off. My plant is starting to look kinda straggly. :(
I wait to water until the top inch or so of soil is drying out (but not completely dry and dusty). I also use room temperature water.
And since I brought it back in from the summer, I've misted it occasionally in an effort to help with humidity.
I really love this plant and I've been sorta holding out it will come around, but am kinda panicking now with these yellowing leaves. :(