Insufficient data! What variety, what rootstock, container or inground, age, fertilizer and water regimen,where do you live, and most important, can you post a photo?

And how did you prune?

It was already at my house when I moved in. It produces big yellow lemons and it's huge its at least 20 feet tall.

I cut almost every branch off because my wife kept bugging about the tree being too big already and dropping too many lemons. I even had to use a chainsaw to take some of the really thick branches off. I'm surprised the tree didn't die. It's back to 20 feet tall again but no blossoms this season.

I did the same to my lemon a few years ago and didn't get any the next spring. It will start producing next year, but may take a couple of years to get back to where it was. Mine produces too many, too, there's no way I can use 250+ lemons.

Thanks. Now that I don't have a ton of lemons I have a ton of ideas of what I could do with them. You never know what you have until its gone.