Analysis and Countermeasures of Black Heart Phenomenon in Summer Succulents

Many succulent plant enthusiasts find that their once vibrant succulents turn black and stop growing in the high temperatures of summer, a phenomenon known in the industry as "heartblack." This article will analyze the reasons for succulents turning heartblack in summer and provide corresponding countermeasures.Reasons for Succulents Turning Heartblack in Summer1. High temperature and drought: As temperatures rise in summer, the evaporation of moisture in the growing environment of succulent plants accelerates, leading to water deficiency in the plants. The high temperature causes the moisture inside the plant to evaporate too quickly, resulting in blackened leaves.2. Excessive sunlight: Intense sunlight in summer can damage the leaves of succulent plants if exposed for extended periods, leading to heartblack.3. Low humidity: The low humidity in summer means that succulent plants not only face water deficiency but also the issue of dry air, hindering their growth.4. Insufficient nutrients: In the high-temperature environment of summer, succulent plants' ability to absorb nutrients decreases, leading to slow growth and blackened leaves.Countermeasures1. Provide appropriate shading: During the high-temperature periods of summer, provide succulent plants with appropriate shading to avoid direct sunlight. Sunblock nets or tree shades can be used for this purpose.2. Maintain ventilation: Good ventilation helps to reduce indoor temperatures and lower the incidence of heartblack in succulent plants.3. Control watering: Watering should be moderate in summer to prevent waterlogging in the soil. It is best to water in the early morning or evening when temperatures are lower, which is conducive to water evaporation.4. Fertilization management: In the high-temperature environment of summer, succulent plants' ability to absorb nutrients decreases, so it is necessary to choose fertilizers suitable for summer growth and reduce the frequency of fertilization accordingly.5. Increase air humidity: Use a humidifier or sprayer to provide suitable air humidity for succulent plants.6. Prune promptly: For succulent plants that have already shown signs of heartblack, prune the damaged leaves to promote plant recovery.The phenomenon of heartblack in succulent plants during summer is the result of the combined effects of high temperatures, drought, excessive sunlight, and other factors. Understanding the reasons for heartblack and taking appropriate countermeasures can help reduce the occurrence of this phenomenon and allow your succulent plants to have a healthy summer.References:"Succulent Plant Summer Care Tips and Common Problem Answers," Author: Li Ming, Source: China Flower News, June 2019."Succulent Plant Summer Maintenance Skills," Author: Zhang Xiaoyan, Source: Gardening World, July 2020.