Q.how to sex kiwi
Probably 6-8 years ago we bought those Walmart bare root kiwi pair. It came with both sexes, but one of them died. So now, we need to get another of whichever sex we need. Problem is, we have never seen ONE flower on the vine to determine which we have. I started wondering if maybe it’s missing some nutrient, but the plant is quite vigorous. Is there something I need to do to encourage blooming? Or should I just start over? We are in sandy (Florida) soil. Everything grows.

Here is an article that will help you which discusses how to get blooms on a kiwi:
https://www.gardeningknowhow.com/edible/fruits/kiwi/kiwi-plant-not-flowering.htm
Happy gardening!