Pothos (Epipremnum aureum) is a common houseplant, celebrated for its robust nature and adaptability. Despite its hardiness, sunburn is a frequent issue that can affect its foliage, impacting both appearance and vitality. Understanding the signs of sunburn and how to address it is important for maintaining the plant’s health.
Recognizing Sunburn Symptoms
Sunburn on Pothos causes distinct discoloration and damage on the leaves. Initial signs include yellowing or bleached white patches, especially on upper leaves directly exposed to light. As damage progresses, these areas turn brown, dry, or crispy. Affected leaves might also show curling or a faded appearance. These symptoms are concentrated on parts receiving the most direct light.
Understanding Causes of Sunburn
Pothos plants incur sunburn from excessive direct, intense sunlight. Harsh afternoon sun, especially when magnified through a window, can quickly overwhelm the leaves. Another common cause is moving a Pothos too quickly from a shaded environment to a much brighter location without gradual adjustment. This sudden increase in light intensity damages chlorophyll within leaf cells, which are responsible for photosynthesis. The plant’s inability to cope leads to cellular breakdown and a burnt appearance.
Treating Sunburned Pothos
Upon identifying sunburn, immediately relocate the Pothos to a more appropriate environment. Move the plant to a spot providing bright, indirect light, away from direct sunbeams.
Severely damaged leaves, such as those completely bleached, crispy, or extensively browned, should be carefully pruned. These leaves will not regain their healthy appearance or function, and removing them allows the plant to redirect energy to new growth. Use clean, sharp shears to make cuts at the base of the petiole. Leaves with minor discoloration or slight crisping can often be left on the plant, as they may still contribute to photosynthesis.
Preventing Future Sunburn
Preventing future sunburn involves providing consistent and suitable light conditions. Pothos thrives in bright, indirect light, which mimics its natural habitat beneath a tree canopy. Position the plant a few feet away from a south or west-facing window, or use sheer curtains to diffuse intense sunlight.
When changing a plant’s location to a brighter spot, acclimate it gradually over several days or weeks, increasing light exposure incrementally. Regularly observe light intensity in different areas of your home to find the ideal placement. Monitoring for subtle changes in leaf color can also provide an early indication of light stress.