In this episode, Ken and Lisa share why evergreens turn yellow. Evergreens are a beautiful addition to any landscape, but sometimes they can turn yellow. There are a few different reasons why this can happen. Here are the most common:
Natural needle drop. All evergreens shed their needles eventually, even though it’s not as noticeable as deciduous trees. Conifers (pine, spruce, fir, or juniper) typically shed their inner needles first, which can make them look yellow.
Environmental stress. Evergreens can be susceptible to stress from a variety of environmental factors, such as drought, heat, cold, salt, and wind. When evergreens are stressed, they can turn yellow as a way to conserve energy.
Nutrient deficiencies. Evergreens need a variety of nutrients to stay healthy, and a deficiency in any one nutrient can cause the needles to turn yellow. Nitrogen is a particularly important nutrient for evergreens, so if your soil is low in nitrogen, your evergreens may turn yellow.
Pests and diseases. Evergreens can be susceptible to a variety of pests and diseases, some of which can cause the needles to turn yellow. If you notice any pests or diseases on your evergreens, it’s important to treat them promptly to prevent further damage.
So what can you do to help your evergreens?
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