Q.Growing Avocado From Seed Or Graft?
Hello, I have a Haas Tree that has grown from an Aldi seedling. My understanding is that it can take 10-15 years for this tree to bare fruit, is that accurate? If so what is the best way to identify if a tree at a nursery is grafted from a good source?

Certified GKH Gardening Expert
If it is grown from seedling, then there will be no way to know its characteristics. With a single Avocado tree, there will be no way to obtain fruit, unless there are multiple flowering types grafted onto a single tree. And, yes, it could take 15 years for it to be mature enough to flower. Then, it requires an opposite flowering type to produce fruit.
When you get one from a nursery it will usually be labeled male or female. Sometimes there are multiple types grafted so that it will be self fertile. These will be labeled as such. They will fruit within a few years, given the proper conditions are met.
Here are some articles that will help:
https://www.gardeningknowhow.com/edible/fruits/avocado/avocado-tree-grafting.htm
https://www.gardeningknowhow.com/edible/fruits/avocado/no-blooms-on-avocado-tree.htm
https://www.gardeningknowhow.com/edible/fruits/avocado/avocado-tree-with-no-fruit.htm
https://www.gardeningknowhow.com/edible/fruits/avocado/how-to-fertilize-avocados.htm
https://www.gardeningknowhow.com/edible/fruits/avocado/avocado-tree-growing.htm