They are getting enormous (I hadn't realised how big it grew!) but I'm wondering if I really need to wait until next year before I pick any of it, like I have read. Some of the leaves are about 18" by 18" (or 45cm x 45cm). It looks so yummy! In fact it looks like a bloomin' Gunnera!!! Or is it a Triffid?

I need your advice!