JudyH wrote:
I live in Australia a moderate climate ie in winter we can almost get
a frost and in summer the temperature is fairly pleasant. I have 4
bushes of black and red currants and they are 3 years old. I have
never had any fruit. Could someone tell me if the climate is suitable,
or is there something else I can do to make them fruit. Many thanks

It certainly could be your climate (not that I know anything about
growing in a warm climate).
What happens to the bushes in the winter? Do they loose their leaves and
go dormant for at least a little while? If not, I wonder if they will
produce the flower buds that will make the fruit. Have any of the bushes
flowered at all in the spring?

Steve in the Adirondacks (where winter dormancy is no problem)