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Potted lemon tree, now with yellow leaves-why yellow leaves?

Posted: Sun Sep 28, 2014 7:36 pm
by Kilkennycat2
Re: Potted lemon tree, now with yellow leaves-what causes the leaves to turn yellow?
The potted plant is outdoors in summer (indoors in winter)

Re: Potted lemon tree, now with yellow leaves-why yellow lea

Posted: Mon Oct 06, 2014 4:46 pm
by lorijones
Is your tree still outside at this point or have you recently moved it indoors? There are a few reasons that the leaves of citrus trees can become yellow.
The most common is a nutrient deficiency. It looks to me like this is the problem with your tree. Do you fertilized your lemon tree? A nitrogen deficiency will cause the leaves to become yellow - especially the older leaves. Your tree should probably be fed with a good organic fertilizer like Espoma Citrus-tone. Espoma recommends feeding citrus 3 times a year; in late winter, late spring, and in the fall (Sept or October).
Yellowing leaves could also be a sign of either overwatering or under watering. Be sure to keep the soil evenly moist and water when the top 2" in the pot becomes dry.
Sometimes some leaves will turn yellow and drop when the tree is brought indoors. This is normal and is due to the abrupt change in environment.