Why Are the Leaves of the Cuban Oregano Turning Yellow and Falling Off? Here's How to Fix It
Cuban oregano (Plectranthus amboinicus) is a shrub-like herbaceous plant that gives off a unique fragrance all over, and this fragrance becomes even stronger when you touch it, so many people grow it. But many friends find that its leaves turn yellow and drop during cultivation. What's going on here? Let's take a look.
1. Natural metabolism
Sometimes the leaves of Cuban oregano turn yellow, and this may be caused by the plant's own natural growth, because after being grown for a long time, the stems of Cuban oregano gradually become woody, and the leaves around them turn yellow and gradually wither. If this is the case, there is no need to worry, because it is a normal physiological phenomenon, and after its leaves wither, new branches and leaves will still grow.
2. Overwatering
Cuban oregano is not tolerant of waterlogged conditions. During care, watering too much may cause root rot, and root rot will lead to yellowing and falling leaves. So when caring for it, water only when the soil is dry and water thoroughly when you do. On rainy days, reduce watering appropriately or stop watering. Especially in low-temperature seasons, watering must be strictly controlled to avoid water accumulating at the bottom of the pot and causing root rot. In winter, too much watering can also cause cold damage to Cuban oregano.
3. Insufficient light
Cuban oregano is a sun-loving plant. It likes to grow in an environment with sufficient light, and when grown in sufficient light, its leaves become thicker and more verdant. If it is kept in a shaded place for a long time, its leaves will become thinner and yellow and spindly. In addition, when placing it in the sun, pay attention too: the intense midday sun may cause its leaves to turn yellow, so at this time provide appropriate shade, and it is best to keep it in a place with fairly good ventilation. Do not place it on a closed balcony.
4. Excessive touching
Cuban oregano releases fragrance after being touched, so many people like to touch its leaves often, but excessive touching can also have a relatively large impact on its growth, causing physiological disorder in the plant and leading to yellowing and falling leaves. At this point, it is necessary to reduce handling of the plant, strengthen daily care, control light and water well, and at the same time improve ventilation to let it recover.
The above is an introduction to the causes and solutions for yellowing and falling leaves of Cuban oregano. We hope it helps you. For more related knowledge, please stay tuned to us.