Young Grapefruit Tree
I recently bought a young grapefruit tree. It did not say exactly how old or what kind grapefruit it was. I live in Toronto (Canada) and I'm going to keep the tree inside during the summer near a large south-west facing window. I'm fertilizing it with a 30-10-10 fertilizer meant for trees. It has all of the required micronutriens ( B, Cu, Fe, Mn, Mo, Zn) except Mangnesium, which I use every 2-3 weeks. I mulch it once in a while with grass clipping or ground up pine cones. I have pictures and some of my concerns here: http://imgur.com/a/NLXa8. I'm wondering how old it is, how big it will get, if its anywhere near fruit bearing age and if I'm caring for it properly.
Here is a link that might be useful: The Tree