My meyer lemon tree has been outdoors since the weather in the northeast became warm. I fed it some Citrus-Tone at end of spring. Bloomed in early summer and it blooming again now, with about 15 or 20 lemons. Tree has been looking extremely healthy. I noticed today that the bottom leaves are turning yellow. Should it be fed again?
Meyer Lemon Tree
Certified GKH Gardening Expert
If the leaves are green veined, but yellow elsewhere, the plant has an iron deficiency. This article will help fix that: https://www.gardeningknowhow.com/plant-problems/environmental/leaf-chlorosis-and-iron.htm
These articles will help you with fertilizing: https://www.gardeningknowhow.com/edible/fruits/citrus/fertilizing-citrus-trees-best-practices-for-citrus-fertilizing.htm