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I'm not sure if this would work with Avocados, but it might be a neat experiment to try. My friend grows hops for home brewing beer and these have the same "problem" of not yielding anything for a few years. He was able to trick the plants into flowering by putting them in the refridgerator two different times for about two weeks long each time while they were still infants. This fooled the plant into thinking it had experienced two winters and he got a decent yield in his first year.
Here is the link to the site where it was posted
Watering & Enjoying
I'm not sure if this would work with Avocados, but it might be a neat experiment to try. My friend grows hops for home brewing beer and these have the same "problem" of not yielding anything for a few years. He was able to trick the plants into flowering by putting them in the refridgerator two different times for about two weeks long each time while they were still infants. This fooled the plant into thinking it had experienced two winters and he got a decent yield in his first year.
Here is the link to the site where it was posted
Watering & Enjoying