I suggest to be extra careful with this info. Convallaria is very toxic and children could mistake it by a Hosta or an Allium ursinum with terrible results. Is

I suggest to be extra careful with this info. Convallaria is very toxic and children could mistake it by a Hosta or an Allium ursinum with terrible results. Is not a joke. Polygonatum is also dangerous. Lots of shadow plants are poisonous and this includes practically all that sprout like Hostas in the shadow and in temperate areas. Some of those can be eaten in -small- amounts after being processed. Trillium and Paris are very poisonous, Asphodelus can provoke a heart attack easily. Even if is edible after some particular processing, It just don't worth the risk. Ferns store cyanide and must be cooked. They can provoke canker if eaten regularly. And there are also other things to consider. Hosta leaves grow once in the year. Eat the leaves and you will have an ugly plant for a whole year (or a dead plant). They are famous to keep the cuts in the leaf for the entire season. There is not much point into spending money in expensive garden plants with a long life if you want to eat them later.