Nagami Kumquat's fruit are naturally small, about the size of the end knuckle on a thumb. For all citrus trees, including Nagami Kumquats, only 1- 2 percent of the flowers will develop into fruit. Never let a container kumquat tree become root bound nor dry. Kumquats are heavy feeders, needing to be fertilized a minimum of once a month, several fertilizer applications normally provide excellent results.

Hi, thanks for the reply. I'm familiar with the size and shape of Kumquats, I was just saying mine are smaller than normal.

Anyone have any particular fertilizer they recommend? Are those All-Purpose Plantfood good enough (24-8-16) or something like that)?

Wondering if I should repot it using different soil. I think I used the wrong soil when i repotted it into the pot it's in. I garden soil (not potting soil with perilite) and cactus mix.

Any other advice would be appreciated. Thanks!

Hi scuzzy
Just wondering how is your kumquat tree doing? Any success with big harvest? If not try repotting into bigger pot and then apply miracle-gro for plant and citrus spike in the spring and fall. Say prayer and hope for the best. I have some kind of kumquat tree as a gift and it has been fruiting twice a year. I made so many jars of jelly, made cookies and stirred in hot green tea. I still have a bucket in my big freezer to make jelly. Here is a picture to share with you. Hope yours will get some fruits soon.