I noticed while checking on some of my seedling citrus trees in the greenhouse today a bloom on a 1 inch tall Yuzu, and a bloom on a one year old Clementine seedling hybrid, a little unusual. - Millet

Has the bloom opened yet?

I have grafted Yuzu about 18 months ago on a calamondin, it grew by 8 ft and 3 ft wide canopy but no blooms.

I have a trifoliate seedling that bloomed in it's second season last year, but only on one of two limbs. I noticed today that the same limb is full of bloom this spring, while the other limb still has no sign of bloom. I have seen young seedlings bloom before and wondered what is going on.