Clammy Groundcherry

I haven't grown this yet, but I've read about it on a few sites.

It's supposed to be a perennial. (This article says it ca...Read Moren handle zone 4a.) Anyway, it has rhizomes, kind of like Physalis alkekengi, but it looks kind of like Aunt Molly's ground cherry. It's said to taste like a mix between a pineapple and a tomato. Seeds are supposed to grow quite quickly and readily.

Amishland Heirloom Seeds claims to sell it, or perhaps a variety of it, called Ammon Martin's ground cherry (Physalis heterophylla Nees); aka Juddekaersche, Wintercherry, Husk Cherry, Strawberry Husk Cherry. They don't mention its perennial nature there, though.