Rabbits' eating habit is very obvious, they will eat things in whole, from top to bottom,some time leaving nothing behind. Summer insects will make holes. Snails, slugs will start (usually) from the outer most leaves, will eat the tender parts, leaving behind the vains. Also, snail/slugs need a bigger plants to munch on, because they hang on the leaves and start chewing them. Since you are in zone 9 probably you have snails, sluggs or both. SLUGGO, as I have heard is a safe organic cure for snal/slug problem. OR, if you find out that you have snails, you may consider hunting them and eating them. As the saying goes: IF YOU CANNOT BEAT THEM, EAT THEM(Grin !)

I didn't know Peace Lily got so big.. Thanks! I've done some looking around on the net and it appears to be an indoor plant. I can't find any information on whether or not it is a good idea to plant it outdoors. Would they be the type to return every year when winter kills it down? I just don't think it can be kept in the house. Having two cats has made it impossible to keep plants in the house unless they're hanging from the ceiling and not near any tall furniture that they can leap from.

Yeah, it did bleed a little white sap. The main reason I say that I can't tell is that I have found pictures labeled as both bolting lettuce and bolted cabbage that look just like this. That said, I do know that one of the plants put down over the years was Romaine Lettuce, so I am leaning in that direction. What soup would you recommend to make with it?

Alocasia are tough to over water (mine actually lives in water) and once a week might not be often enough, especially if it's hot. Without seeing more pictures it's really hard to tell what's going on but it does sound like you're plants are potentially thirsty. You definitely need to water by soil feel rather than on a schedule. Also, move closer to a window, all of these plants are going to need the brightest light possible but no prolonged sunlight touching the leaves. Filtered light isn't enough.