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www.hunker.com/13404853/why-do-outdoor-plant-leaves-turn-yellow

Leaves may turn yellow on plants if they do not receive enough water. Dropping leaves is a defensive mechanism by the plant to conserve water because plants easily lose water through their leaves. If a plant remains without water long enough, all leaves will turn yellow and die, as will the entire plant.

www.gardeningknowhow.com/plant-problems/environmental/plant-leaves-turn-yellow.htm

Just like people, plants are known to feel under the weather now and then. One of the more common signs of ailment is yellowing leaves. When you see leaves turning yellow, it’s time to put your Sherlock hat on and do some sleuthing to find the possible cause and solution. Among the reasons why ...

www.apartmenttherapy.com/houseplant-help-how-to-save-a-plant-whose-leaves-are...

The Diagnosis: If the older leaves on your plant are turning yellow and the new leaves are very light green, it could be a sign of a nitrogen deficiency. Look for plant food with this nutrient and follow the recommended feeding rate to avoid fertilizer burn. With just the right amount of fuel, your plant will look lush again in no time.

www.mnn.com/.../organic-farming-gardening/blogs/why-are-my-plants-turning-yellow

Why are my plants turning yellow? Yellow leaves are a common symptom of sick plants, but a closer look can reveal clues that help gardeners get to the root of the problem.

backgarden.org/causes-why-plant-leaves-turn-yellow

Plant leaves can also turn yellow when the plant has been affected by a fungus infection or a virus. According to an article posted by Jim Isleib for Michigan State University, about 85% of the plant diseases are caused by fungal or fungal-like organisms.

www.gardenguides.com/12259562-why-are-my-garden-plants-turning-yellow.html

Planting a garden is a rewarding, educational experience. After all your hard work planning, planting and cultivating your garden, it is disappointing when your plants become unhealthy. Yellowing leaves is a common problem, and there are many reasons that plants in your garden turn yellow.

dengarden.com/gardening/Yellow-Leaves-on-a-Houseplant-Whats-the-problem

So you have discovered that your houseplant has some yellow leaves or may be losing leaves, and you want to know why. The shortest and most common answer is under-watering. Think of your plant as being a company, its leaves as workers, and water as wages. If the company runs short on money, it has ...

aikenmastergardeners.org/why-do-leaves-turn-yellow-by-bill-hayes

Leaves may turn yellow on plants if they do not receive enough water. Dropping leaves is a defensive mechanism by the plant to conserve water because plants easily lose water through their leaves. If a plant remains without water long enough, all leaves will turn yellow and die, as will the entire plant.

www.gardenguides.com/130842-yellow-leaves-outdoor-plants.html

Many evergreen outdoor plants develop and then shed yellow leaves during phases of dormancy. This can be either in the coldest months of winter or during the hottest and driest period of summer. Often it is the oldest leaves on a plant that turn yellow and drop.

www.growweedeasy.com/why-cannabis-leaves-yellow

Sometimes Yellow Leaves Are Normal! Sometimes marijuana leaves turn yellow for totally normal reasons, including…. First Leaves Turn Yellow – Normal. After your plant has grown a few sets of leaves, it’s very normal for the first few sets of leaves to turn yellow and die, especially if they’re not getting light anymore.