I want an avocado tree but I want to first find a reliable supplier/nursery (even someone here) in riverside or San Diego county, but I'm looking for a rootstock that can handle over watering(clay soil). Any help is appreciated! @_@

Since no one else replied, I will throw in my thoughts.
I don't know much about Avocados,
but I have friends who do.

In clay soil you will have to grow your Avocado on the
side of a hill or in a mound, maybe 6 feet in diameter
and 3 feet high. Set the tree about an inch high above
the soil line. Then arrange for irrigation, where it will
be very slowly watered and then left to dry. Dig down
a few inches and check for dryness or low moisture
before watering deeply again. Keep mulch on the soil
under the canopy of the tree and better yet, even past
the drip line. 6 inches of chopped trees is a good mulch.

Maybe Toro Canyon would be a good rootstock for your
soil. It will cost more to get a tree that has been grafted
onto a clonal rootstock, but it is worth it.

Oh, and you will have to protect your tree from freezes.
If it is on the side of a hill, the cold air will drain down hill
and that will protect your tree somewhat. In addition,
you might have to cover your tree with something like
Frost Blanket and keep an incandescent light going in
the small hours of the morning for a few of the coldest
nights. You might consider Fuerte and Bacon for their
cold tolerance.

Not discouraged? Visit the Fallbrook Avocado Festival
on 2008/04/20 (April 20th) and ask the vender's about
how they grow their trees, rootstocks, etc.
Check out Atkins and also Maddock Nurseries while
you are there.

Thanks for the info and I'll probably go to the festival I live like 10-15 minutes away from Fallbrook I'm on the border between Murrieta and Temecula (Hope you know where I'm talking about ),but could you give me directions to any of those place please(Festival, Atkins, Maddock). I'm not to discouraged I know many people that grow em here but I just don't want to screw up and Thanks for worrying also do you go to the CRFG meetings?

Eddy:

Here are some URLs that I found using Google:

Atkins Nursery doesn't seem to have a web site,but here is the info:
http://www.digitalseed.com/sandiego/gardener/suppliers/atkins1.html

and a Google map:
http://maps.google.com/maps?hl=en&um=1&ie=UTF-8&q=3129+Reche+Rd+Fallbrook,+CA+92028&fb=1&geocode=8076389493303830394,33.362062,-117.195791&oi=manybox&ct=14&cd=1&resnum=1

Maddock Nursery does have a web site:
http://maddocknursery.com/
and finally some more information on the Avocado Festival
in "downtown" Fallbrook:
http://www.fallbrook.org/events/event.asp?eventID=375

By the way, the Orange County branch of the California
Rare Fruit Growers is putting on their Festival of Fruit
in September and the theme will be the Avocado!

I'm sorry for making you look I thought you had this information , but thanks so much and I'll look into all of this.

here is the list of nurseries that CRFG has. It is indexed for the ones that carry avo's. I don't know who is good and or not from the list but at least it may be a starting point.
Let us know what you do, who you like, who you don't as you work thought your search.
Remember to get some A flowering and some B flowering avo's. Also if you are in a cold area, concentrate on the varieties that are from Mexican varieties, like Mexicola and Zutano. Guatamala varietes are all much less frost resistant.

http://www.crfg.org/nurlist.html