Learn more: Is Your Citrus Tree Overwatered or Underwatered? 2. The leaves of underwatered lemon trees usually stay green, but begin to dull in color and curl in severely at the edges. It’s possible that there can be yellowing of the leaves due to drought stress, but it’s more common for an all-over paling or yellowing to be due to overwatering. The mild indoor environment combined with the tree’s slow growth means it needs far less water during the winter months. Lemon trees slow their growth significantly over the winter by going partially dormant. It’s common to accidentally overwater a lemon tree that’s been brought inside for the winter. Overwatering quickly leads to root rot, which can be fatal for the tree. Overwatered lemon tree leaves will appear pale green or yellow and may be slightly cupped at the sides. Learn more: Watering Lemon Trees: How to Get It Just Right You may also notice a slight cupping of the leaves – another sign of stress. If the water stress continues, the yellow leaves will turn brown at the edges, droop, and then fall off. Yellow leaves is often the first way to tell your lemon tree has been overwatered. Too much soil moisture will keep the roots from absorbing what the plant needs for photosynthesis, causing chlorosis. Water stress can cause yellowing lemon tree leaves – particularly overwatering. It can sometimes be challenging to determine exactly what the cause of the chlorosis is, but this list will hopefully give you a good starting point for determining the root of the problem. Are the leaves yellow all over, or more mottled? Are the veins still deep green with yellowing in between? Or are the leaves just yellow around the edges?Įach of the problems listed below will cause chlorosis (paling or yellowing of the foliage), but the pattern of the yellowing will be a bit different. Where are the yellow leaves located? Are they only newer leaves, or is the older foliage losing its green color?Īlso take note of what exactly the leaves look like. When you notice yellow leaves on your lemon tree, pay close attention to the details. What do yellowing lemon tree leaves mean? Read on to learn the different reasons a lemon tree’s leaves might turn yellow, and what to do about it. This is a common problem, but there are usually simple solutions. I’ve included photos and descriptions below of all kinds of yellowing lemon tree leaves. The yellowing can be corrected by making adjustments to the care of the tree. The most common reasons for yellowing lemon tree leaves are overwatering and nutrient deficiencies, but inadequate sunlight, stressed roots, or certain pests and diseases can also cause yellowing leaves. The question is, what is causing the stress? What exactly does it mean when a lemon tree’s leaves turn yellow? And, more importantly, how do you fix it? So what was going on?Ĭitrus trees are notorious for showing discoloration on the leaves the minute they are under stress. I thought I was doing everything correctly – watering, some fertilizer, full sun – and my tree had had a delicious crop of lemons the previous year. One day I wandered out into the garden and noticed that my Meyer lemon tree’s leaves were turning yellow. No matter how vigilant you are as a gardener, anything can happen. We may receive commissions from purchases made through links in this post, at no additional cost to you.
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