The Q&A Archives: Nagami Kumquat

Question: I bought a Kumquat Nagami plant last year with fruit on it. I had it in my Greenhouse over the winter and it was doing all right. Now in summer I have it outside and I see all the leaves are dropping and a new shoot came out from the motherplant but the leaves look like a 3 leaf clover and its color is light green and it looks healthy. What am I suppose to do, cut it or what? Nobody seems to give me advise. Please Help.
Heike Salinas

Answer: Your Nagami Kumquat (Citrus kumquat 'Nagami') is grafted onto Carrizo Citrange rootstock. The sucker that has emerged with odd looking leaves is actually from the rootstock and not from the kumquat. This sucker should be cut off at the base before it overtakes your kumquat tree. If you moved your tree outdoors after being in a greenhouse all winter, its possible it is dropping leaves because of the shock of the transition. Light levels can be higher outdoors, and temperatures much different than in a greenhouse, which can cause a lot of stress to your tree. As long as the graft was not damaged, the tree should remain alive and produce new leaves. Cut the sucker off the plant as soon as possible because it is using energy from the roots that would otherwise go into the tree to help it releaf. Best wishes with your kumquat!

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