When to prune kumquat?
Being a citrus, make sure it gets a lot of sun. If it is in your house, make sure you take it outside when it flowers so it can get pollenated. If you dont, fruit will not form. The only other thing is to watch your watering when flowers are on and fruits are forming. Too little, and your fruit will shrivel and die before getting any size. Too much water they will split. Go ahead and prune (or trim for shape) in March, after all the fruit are done, and before the new buds have formed. The nice thing about Kumquats is that they form flowers on old growth as well as new growth, so even if you cut the flowers or buds off the new growth at the wrong time, you should still get some fruit.
