Lemon leafs turning yellow, some of them purple?

Asked April 19, 2015, 3:47 AM EDT

Hello, I've lemon tree in a pot. It was indoor for 3-4 month (in winter). Now it's spring but feels like summer . I moved it outside, it's been about 2 weeks. I do watering twice in a week, once fertilizer "N:P:K - 18 7,7 17".

so, my question is: why leafs turning yellow (only top leafs) ??? new leafs are purple or kind a dark red???

Am I doing something wrong? sorry for my bad english, if u misunderstanding ☺

thanks in advance✌

Outside United States

1 Response

It looks like it could be an iron deficiency. The most reliable means of correcting iron chlorosis is by soil application of iron chelates such as Sequestrene 138 Fe. See this EDIS publication for more information and example photographs: