you'll want to use enough that it equates to adding 0.1 pounds of nitrogen per tree for every year it matures. That will look something like half of a cup of urea for a growing tree. Avocado trees ...

For avocado trees, Di Lallo recommends a typical houseplant potting soil with some added perlite or pumice to promote aeration. When it comes to the perfect container, an unglazed terracotta pot will ...