![]() ![]() Unfortunately, fungal blight isn’t the only thing the Slender Hinoki Cypress trees are susceptible to, as almost every fungal disease can ravage them. Usually, the first signs that the tree is infected are yellow spots on new needles, and once the disease progresses, you may see canker-like sores on the stem of the affected branches. The pathogen attacks the tree randomly, reaching into the branches and needles, and becomes especially serious once it gets to the root system.įungal blight is the most common disease that affects this type of Cypress. While Slender Hinoki Cypress trees aren’t sensitive to every disease, they are susceptible to specific fungal infections, as they can get deep into the roots.įungal diseases can affect every part of the Slender Hinoki Cypress tree. The Slender Hinoki Cypress Tree Is Sensitive to Diseases ![]() That’s why you must mulch the ground around the tree in winter to protect the roots from frost, regulate the soil temperature, and help retain moisture. However, they can often turn brown or yellow if you don’t give them the right amount of water. Since mature Slender Hinoki Cypress trees are typically drought-tolerant, gardeners are likely to skip watering them during winter. When winter browning occurs, it’s usually because of insufficient water during the winter months. Usually, if the tree is turning brown and it’s not due to a major issue such as fungal infections or insect damage, it’s known as winter browning, which is still a problem but less so than other issues. Slender Hinoki Cypress trees can often naturally turn brown, but it can also present a problem for those who want a tree that always stays green. The Slender Hinoki Cypress Tree Is Browning However, some varieties of this plant produce yellow or golden foliage, so you should determine whether or not you have this species before assuming that the yellow needles are a problem. See our guide on How To Identify And Manage Alkaline Soil. As pH levels rise above 6.0 over time, many soil nutrients, such as iron, become unavailable, resulting in chlorosis or the yellowing of the needles. Moreover, these trees prefer acidic soil with pH levels below 6.0 ( source). Its deficiency will result in thin and yellow foliage. A major nutrient of concern is nitrogen, which helps maintain the volume and dark green color of the needles. They’re not heavy feeders, so gardeners often overlook their fertilizer needs, leading to nutrient depletion. Still, they need a specific blend of nutrients, including nitrogen, potassium, and phosphorus as the primary nutrients, and minerals, such as magnesium and calcium. Slender Hinoki Cypress trees are slow-growing in nature. Deciduous trees will naturally turn yellow once the weather cools, but you shouldn’t see this in evergreens unless there’s something wrong. The Slender Hinoki Cypress Tree Is Turning YellowĪs an evergreen tree, the Slender Hinoki Cypress should not change color, but many people are experiencing a problem with the needles of this tree turning yellow. Check out the DynaTrap Mosquito & Flying Insect Trap – Kills Mosquitoes, Flies, Wasps, Gnats, & Other Flying Insects – Protects up to 1/2 Acre (link to Amazon). ![]()
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