Question about Avocado root stock

[Jsvand5]

I want to try to graft a few avocados in the next few months. I bought a few imported mexican avocado's. I think they are mexican hass. Would these be ok for a rootstock or should I look around for some Lula seedlings to use as a rootstock?

[HMHausman]

Until proven otherwise by poor performance, I would assume they would be fine.

Harry

[nullzero]

I want to try to graft a few avocados in the next few months. I bought a few imported mexican avocado's. I think they are mexican hass. Would these be ok for a rootstock or should I look around for some Lula seedlings to use as a rootstock?

Hass I think would work fine, what is the min. temp you get? I would consider a Mexicola as rootstock, it has great cold hardiness (18F) which should help improve the cold hardiness of the whole tree. I don't know which varieties would have better root rot and nematode resistance (I would seek those out).

[Jsvand5]

It gets down to 20 by me, but this tree would be growing under a greenhouse.

One other question, I have found two sources for the Nishikawa Avocado that I am am wanting. One (Treehouse) has them but doesn't ship. The other does ship but I am not totally confident that the tree that I would be getting from them would be a true Nishikawa. Anyone know of any other reliable sources?

[bsbullie]

I would look for an avocado that can take the lowest temps for rootstock.  Lula would work and there are others that supposed take a little lower (will have to do a little searching to update myself).