I have a question about avocados.

Being from CA, I love them. I want to grow a tree, which I started to
in CA, from a pit, and it took off quite nicely.

Since then, I've been told that bearing fruit is not simply a matter
of planting two together to cross-pollinate; you must graft them, and
one has to be male and another female. You can guess what my question
is- "How on earth do you tell the difference?"

Curious in SC
(Karen)