@Mentha, thanks for offering! I've collected too many perforated Monsteras; found two more big ones locally. (I don't know if they're obliqua, friedrichsthalii, or adansonii. I read they're supposed to be synonymous but the leaves are different; one has much pointier leaves than the others, with smaller slits). But if you need to send them away, sell them on eBay? I'd be happy to adopt another, too! That little one is doing OK right now. (Making a new leaf, looks clean.) I've learned a lesson: DON'T go crazy stripping "root bound" plants, and pot up according to root size, not plant size. (I don't know how plants survive suggestions like Figure 2. here; a nursery owner told me they actually don't touch the outer roots at all when repotting, and just add more soil around them. Their plants look great.) I thought I was "helping" them by trying to put them in coarser soils like suggested here, but they didn't enjoy the excessive root pruning when I tried to remove the old soil. And I used way too much hydrogen peroxide in trying to compensate for their new, over-large pots. (Something like 1-to-4 rather than 1-to-11 of 3%; surely burned them.) Anyway, I've repotted again (downsized) and am letting them rest and recover. P.S. nice Skyrim icon :D

The emerging leaves are pale, telling me that it's not getting the bright indirect sunlight it needs. The soil mix looks fine, very similar to what I use, but it's not getting watered enough. These plants love water, they just don't like wet feet. If that makes any sense. With the soil mix that you're using, you can water it much more often. Mine stays outside for most of the year and I water it almost daily. Plus, I rarely fertilize it and it still grows like a weed. That's because it gets all of the bright, indirect sunlight that it wants. It doesn't matter how much fertilizer you "feed" a plant, those fertilizers aren't food, and they won't do any good if a plant isn't getting the sunlight it needs to photosynthesize. Plants manufacture their own food, and they can only do that through photosynthesis. As for the aerial roots, you won't really see many of those until the stems grow much longer. Just give your plant much brighter indirect sunlight and more frequent waterings, and it will take care of the rest itself. These plants are called monsters for a reason, HaHa... Also, don't bother misting. Monsteras love humidity, but will grow perfectly fine in the interiors of our homes. My place uses gas heat, which pretty much strips any moisture out of the air during the winter months, and it doesn't phase my monstera one bit.

Agree with Jean, looks like he was underwatered for a long time. These guys don't need a ton of water, so don't swing the other way and water too much, but they do need a good drink when the top third of the soil is dry. Conveniently, they will sweat out excess water through their leaves, so you'll know if you need to give it less next time.

We bought a Monstera deliciosa plant back in March. We've been trying to keep it watered but not too wet, but it's developing a lot of brown leaves. Can you please offer any advice on what we're doing wrong and how we save our Monstera plant?