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					Originally Posted by Betty  I'm going to plant an avocado in the yard of the house we buy.     Avocados are just too yummy and too expensive.  Guacamole. yum. | 
	
 Make it 2.  I've always heard it's hard to get an Avocado tree to pollinate, and I just looked up why.  It seems that the flowers go through a cycle where on 1 day, the male reproductive bits are active, and on the next day the female bits are.  So if you have one tree, the odds of pollination are low and rely on a few of the flowers to be a little out of sync on that cycle.  So more than likely you'll end up with a million flowers (literally), but only a handful of actual avocados.  If you have 2 trees (ideally 2 slightly different but compatible varieties with differing cycles), there's a greater likelihood that some of the flowers will be out of sync.