What's up with my lemon tree?

[Bamboozled]

Couple years ago a neighbor gave me a struggling lemon tree in a 5 gallon pot. I repotted it into a 15 gallon and last spring around the end of March it was covered in beautiful flowers and looking fantastic. About 6-8 weeks later, the flowers started shriveling up and the tree stopped growing.

The same thing happened this year. Here's a pic of how it was looking in March- soon after this pic was taken, it was bursting with flowers:

Here's how it looks now:

Thanks for any feedback!

 

[Chuck]

I think it is a mineral deficiency. There are numerous leaves curling downwards before and after blooming and a lack of micro-nutrients can cause this. I would apply Chelated Iron as it has all of the micro-nutrients. Take a picture at the time of application and another picture from the same location 10 days later. I would also fertilize with your normal NPK fertilizer when you apply the chelated iron.

 

[Bamboozled]

Hey thanks Chuck, will order the Chelated Iron and I've got 6-4-6 citrus/avocado fertilizer on hand. I applied fertilizer about 6 weeks ago and maybe it's run its course.