Thanks justaguy! That's is what I figured...It is one that has never givin me a problem, even all winter, but dang if I can get it to blossom.. After all correct ways with growing this baby that I have learned from you all, it IS the nature of the beast... Nothing I am doing wrong.No magic potions, and high middle number fertilizers..lol Like buying an affectionate cat in the begining, then finding it wants nothing to do with you once mature, no matter how much treats you give it..lol Take care..:-)

Please post a picture so that we can get a better idea of with what we are dealing. I would put it in bright, indirect light for two weeks, then in direct sun. The white mossy stuff is probably mold. See if you could wipe it off with a damp paper towel.

sheilajoyce, they're calamondin oranges which are similar to kumquats. I wasn't familiar with them so I looked it up. I pasted what I found below. Martha, the cake looks good and the tree is pretty! The scent of citrus emanating from Boni Liscano's backyard in Atwater Village comes from a 20-foot-high calamondin tree (Citrofortunella microcarpa), sometimes called kalamansi or calamansi. The tree is covered in small, lime-shaped green fruit that has a thin rind, juicy pulp and distinctive sour flavor. It's similar to a kumquat (to which it’s related) but has a stronger bouquet -- an aroma that's sweeter than lemon and more like orange. Native to the Philippines, calamondin is a wild hybrid used throughout the archipelago in sauces, candies, marinades and drinks. It's squeezed fresh over fish or rice noodles. Liscano's wife, Dulce, said she grew up drinking calamondin juice, which also is used as a hair conditioner, a natural anti-freckle bleach or even a way get stains out of jeans. Calamondin also is popular as a decorative shrub, adaptable to containers and indoors as well. With evergreen foliage and tiny fruit, it can be treated like a big bonsai with color. Liscano planted his tree in 1981 after picking up a seedling at a Filipino grocery store. After about five years it began producing fruit, and it hasn’t let up since.

Yes the soil on a few of my container citrus was getting a bit hydrophobic from drying out too much between waterings, the top of soil would look wet after watering (but was dry directly beneath) and on the hottest days some trees would have cupped leaves from the water stress. After looking into the leaf cupping I noticed the trees were not getting properly irrigated throughout the root zone like the trees in the other mix were. The mix I've been using lately is too heavy on the bark chips and perlite to go very long without watering in this heat, I think I may go back to the mix I was using before whenever I up-pot them next