Question re meteor showers

In order to see meteror showers, must it
be the case that the constellation that gives them their name,
eg Leonids has to be above the horizon

On the 19th, the Leonids will be occuring, but Leo won't
rise until the early ours at Adelaide, Australia.

I suppose that if they can be seen whilst Leo is below the horizon,
then the meteors would radiate upwards from the horizon.

Minge