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Surprised you had any issues with pollination, I always get more fruit that I can begin to cope with, fropm just two plants, I grow the outdoors with no protection and let them get on with it. They're thugs really. I give them to a Mexican lady I work with, by the bag load, and still have more left over than we can use.
they were horrible, I thought. Bland, hard and nasty. I am not going to do any zone pushing this year (Okra, melons, aubergines etc) it is just pointless when we can grow so much good stuff - why struggle to grow plum tomatoes when we can grow Sungold. Why bother with melons when we have strawberries? This has been a long hard lesson with many, many failures. It just isn't nice, making our poor tropical plants shiver through a wet and cold English winter.
Vinlander, the name ground cherry seems to cover quite a few different plants. Are you referring to Physalis pruinosa? The closest that I have grown was the dwarf form of cape gooseberry, peruviana which I enjoyed.