Fiddle leaf figs are popular houseplants, but owners sometimes observe purple spots on the foliage, which can be a concern. Understanding these spots helps in maintaining a healthy plant.
Understanding Purple Spots
Purple spots on fiddle leaf fig leaves typically appear as small, reddish-purple discolorations. They are often found on new growth and usually fade as the leaf matures. While their appearance can be alarming, these spots are generally not indicative of a serious disease.
The Primary Cause: Edema
The most common reason for purple spots on fiddle leaf fig leaves is edema, a physiological condition. Edema occurs when the plant’s roots absorb water faster than the leaves can transpire or release it. This imbalance causes leaf cells to swell and burst, forming reddish-purple spots or tiny blisters.
Inconsistent watering is a primary contributor to edema, often occurring after a dry period followed by heavy watering. Other factors that can exacerbate edema include poor drainage, soggy soil, high humidity with insufficient airflow, and rapid environmental changes.
Preventing and Managing Purple Spots
Preventing purple spots involves consistent care to avoid edema. Allow the soil to dry out between waterings, rather than following a strict schedule. A moisture meter can help assess soil moisture levels, ensuring the root ball is not constantly wet. Water thoroughly until water drains from the pot, then promptly empty any excess from the saucer.
Ensure your fiddle leaf fig is planted in a pot with drainage holes and well-draining soil. Bright, indirect light supports healthy transpiration and water processing. Good air circulation helps with moisture regulation and prevents high humidity issues. Maintaining stable temperatures and avoiding sudden fluctuations reduces plant stress. While existing purple spots will not disappear, consistent care ensures new growth is healthy.
When to Be Concerned
While purple spots are typically benign, they can signal a more serious underlying issue. This is true if accompanied by other severe symptoms, such as widespread yellowing, wilting, or large, mushy black or brown spots. Spots on older, established leaves, especially if not reddish-purple or having a distinct halo, might indicate a fungal or bacterial infection.
A plant whose overall health is declining despite consistent care is also a cause for concern. Pests like spider mites, though rare for fiddle leaf figs, can cause small red dots, often with webbing or visible tiny insects. If these additional symptoms appear, inspect your plant for issues beyond simple edema.