A friend of mine was asking me about which avocado varieties are best to grow (he is in Zone 9B). The Gem (A type of Gwen) is specifically bred for California weather (See video link). I suggested him that variety but not all nurseries sell them.

I wanted to know from you growers which ones you think have what qualities (heavy bearing, year round fruits, etc).

Here is a link that might be useful: Growing Avocados - Best varieties