What should I do if hydrangea leaves turn yellow?

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there are many Different kinds of hydrangea, Some natural leaf color is pale, but there is no natural yellow leaf hydrangea. Yellowing (yellowing) of hydrangea leaves is a symptom of several different problems, including:

  • Overwatering
  • Fungal infection
  • Underwater
  • Compacted soil
  • Incorrect soil pH
  • Lack of iron and other nutrients
Hydrangea leaves turn yellowpin

To properly handle the yellow leaves of hydrangea, you must first determine the cause of the problem, and then take appropriate measures to remedy it. In this article, we provide information to help you do this.

Learn more Hydrangea plant care.

Hydrangea that is over-watered will definitely develop chlorosis

In hydrangea plants and most plants, excessive watering can cause the leaves to turn yellow. Hydrangeas like to grow in well-drained, slightly moist soil. These plants can’t stand standing in water, and moist soil will cause the leaves to turn yellow and more serious problems.

Moist soil prevents plants from breathing, so the first sign of a problem is the yellowing of the leaves. If the problem is not resolved, the plant will stop growing, and fungal diseases will allow it to take root and sprout. Once this happens, the plant is likely to die.

If your plants are standing in moist soil, stop watering them before the soil dries out. However, don’t let it dry completely. If the soil is compacted, you will need to replant the plants.

To report, follow these steps:

  • Use very sharp, sterile tools to trim all yellow leaves.
  • Remove the plants from the container and brush or wash off all the old soil. Check the roots carefully. If the roots rot, use very sharp sterile tools to trim the damaged roots.

Rinse the roots thoroughly and let the plants ventilate for a few hours, then pour them into a new or fully disinfected pot and add fresh potting mix.

  • Place plants in a sheltered area with only 3 or 4 hours of morning light every day. It should remain in the sheltered position until it starts to thrive again.

Should you always cut off the yellow hydrangea leaves?

Yes, all yellow leaves should be pinched or cut off. They will not turn green again, their presence on the plant uses energy that the plant can use to restore.

Can Hydrangea recover from a fungal infection?

Fungal infections are difficult to treat, mainly when the fungus infects the roots. Root rot prevents plants from properly absorbing nutrients. In addition, it can cause root degeneration.

Powdery mildew may be the real problem with hydrangea plants. If you notice cotton-like white fungi on the back of plant leaves, you suspect powdery mildew. This form of fungus can also cause maculas to form on the upper side of the leaves. If the leaves remain moist and do not have the correct air circulation around, your plant may also be infected with fungi on the leaves.

Excessive sun causes yellow leaves

Another reason for the yellowing of hydrangea leaves is the scorching of the leaves. This happens when exposed to harsh, bright sunlight. If your hydrangea leaves wilt and then turn yellow, your problem may be excessive sunlight. You can avoid this problem by placing the hydrangea plant in the correct light environment. Most types of hydrangeas like a partial sunset.

Hydrangea plants need at least 3 hours of sunlight per day, but they can tolerate up to 6 hours of sunlight per day. The best sunlight for hydrangeas is the morning sunlight and the afternoon light and shadow. Your hydrangea plant needs to be protected from the noon sun or the evening sun, because this dazzling direct light can cause the leaves to scorch.

Understand about Florida Hydrangea Dombeya Seminole

Thirsty hydrangea undergoes yellowing

Underwater can also cause the leaves of hydrangea plants to turn yellow. Like most plants, hydrangea flowers that have not received enough water begin to wilt, droop and turn yellow.

It is important to maintain a regular watering schedule for your hydrangeas and make sure to water them at least once a week. Water thoroughly so that the water flows through the soil and out of the drain holes in the pot, but do not overwater.

The wrong soil will lead to greening

To make the most of water, always use a light, ventilated, and well-draining potting mix for your hydrangea plants. The right soil will allow good air circulation and proper water retention.

The soil suitable for hydrangea should contain a lot of organic matter, such as manure. When changing pots, mix in some properly aged fertilizers to ensure that the plants get the right amount of nutrients.

The slightly acidic soil of hydrangea is also important. The correct pH value is between 5.5 and 6.5. If the soil is not acidic, water it with a solution containing citric acid for pickling and canning. Two teaspoons of citric acid per gallon of water is a safe solution.

Too little iron can cause yellowing

Iron deficiency may also cause yellowing. Iron yellowing usually causes new leaves to turn yellow first. If the leaves of the hydrangea start to turn yellow but the veins remain green, iron deficiency is suspected.

If you have hard water, iron yellowing may occur. Fortunately, this problem can be easily solved by simply providing your plants with a good iron chelate feed.

If you water the hydrangea too much, it may suffer from wet roots and iron deficiency. If this is the problem, in addition to providing good iron chelate feed for your plants, you may also need to repot your plants and provide them with new, light, and airy potting soil.

Too little nitrogen will lead to greening

Lack of nitrogen can also cause discoloration. You can distinguish it from iron yellowing, because a lack of nitrogen usually affects older leaves. You will initially see the mature leaves begin to turn yellow, and then the yellowing will gradually spread. Another symptom of nitrogen chlorosis is growth retardation.

You can solve this problem by supplementing nitrogen, but you must also figure out why your plants have low nitrogen content. Several different conditions can lead to a lack of nitrogen, such as overwatering and/or lack of magnesium cans.

Be sure to use high-quality, balanced fertilizers regularly to provide all the nutrients your hydrangeas need.


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