On occasion, the Oahu Urban Garden Center does sell avocado trees--don't know if it's a Sharwil variety, though. They usually have plant sale every second of every month.

However, if you really needed the tree pronto, go to Frankie's Nursery at Windward. They do sell avocado. Go to their site to find more information about it and what variety they sell.

I also seen Home Depot at Pearl City selling avocado trees before.

*every second Saturday of every month.

Avocados are a must. They have been one of my favorite things to accompany almost any meal. They make just about everything taste better:)