How about Nether Bush? It would have red leaves, berries on fire and when it blooms, the flowers attached to the bush would burst out flames occasionally and the flowers would look like Hawiian Lily (I think that's what it's called) and in it's a Elder stage plant the berries would catch on fire and the soil would become a redish-brown like the colors of fire. It would look great in a pyromancer's home! Though it has a LOT of stuff on fire, I guess it may be a bit much
Not sure about this one, but how about an Emporer's Crown plant that had a serious gold cost but yeilds crowns as rewards instead of gold. Could make it subscriber only and the ratio should be around 1 to 5 K gold per crown.
I would make a plant called Jack Of Lanterns it would grow like a bush and have jack o lantern heads on it when mature( like crow). It would give death treasure cards like scarlet screamer and ghoul, and give 100 exp points when you harvest it. Instead of attracting pixes it would attaract dark faires. :)
i have a couple ideas: 1. a cotton candy-lion it would give you a candy related pet snack (bubblegum,buttered popcorn etc.) it would look like a dandy-lion with lots of cotton candy on it and it would be sold at mooshoe 2. a zombush it would look like small bush with a mouth that has tons of saliva and sharp teeth and red eves that would sell for 750 crowns and give you a death spell when you harvest it. post your fav. (mine was #2).