What to Do When Fiddle-Leaf Fig Leaves Develop Rust Spots? Causes and Notes on Watering and Temperature

The fiddle-leaf fig (Ficus lyrata), a beautiful foliage plant, has large, shapely leaves that look like a cello, and it stays green all year round, making it deeply loved by plant enthusiasts. But during cultivation, many growers find that their fiddle-leaf fig leaves develop rust spots, which seriously affects the plant's ornamental value, and they are eager to know what to do when fiddle-leaf fig develops rust spots. So let us clear up the confusion for you.

I. Rust Spots on Fiddle-Leaf Fig Leaves

As a common foliage plant, the fiddle-leaf fig is fairly easy to grow; pay just a little attention to light, water and fertilizer, and it will grow beautifully. But being easy to grow doesn't mean it can be grown carelessly; with the slightest neglect, the fiddle-leaf fig will develop all sorts of problems, and they all show up on the leaves, such as fiddle-leaf fig leaves turning yellow, fiddle-leaf fig dropping leaves, and rust spots on fiddle-leaf fig leaves.

Everyone is familiar with yellowing leaves and leaf drop, but what exactly are rust spots on fiddle-leaf fig leaves? You need to observe carefully: at first the rust spot is a red patch the size of a fingernail, and gradually these small spots grow more and more numerous until they merge into one patch, turning the entire leaf brown. The leaf also loses all its moisture and becomes curled.

II. Causes of Rust Spots on Fiddle-Leaf Fig: High Temperature and High Humidity

Now that you know what rust spots on fiddle-leaf fig leaves look like, let us analyze the causes. The fiddle-leaf fig likes a warm, humid environment, but if the temperature is too high and watering is excessive on top of that, the fiddle-leaf fig will show symptoms of rust spots. This situation often occurs in the Guangzhou area, with March to June and October to November being the peak periods, so timely prevention and treatment are needed.

Prevention of Rust Spots on Fiddle-Leaf Fig Leaves

To prevent rust spots from appearing on the fiddle-leaf fig, you should start making preparations in March and October. Specifically, there are the following two points:

1. Wipe the leaves: the simplest way to prevent rust spots on fiddle-leaf fig leaves is to wipe the leaves. In daily care, you should wipe the fiddle-leaf fig leaves clean every few days.

2. Change the soil: every spring, you should repot the fiddle-leaf fig with fresh potting soil, replacing it with soil that has good drainage and aeration.

3. Ventilation and light: to keep rust spots from appearing on the fiddle-leaf fig, the most important thing is still the environment; you should keep the fiddle-leaf fig in a ventilated environment at all times and give it plenty of light, but not intense light.

III. What to Do When Fiddle-Leaf Fig Develops Rust Spots: Prune the Leaves

If you haven't taken preventive measures, what should you do when the fiddle-leaf fig develops rust spots? First observe the condition of the leaves: if it isn't serious, you can simply spray with a chemical treatment (available at flower shops); if the leaves are fairly badly affected, it is recommended to cut the leaves off directly; but if the whole plant is affected by the disease, you should first cut off the affected parts, then change the potting soil and replant.

Overall, the fiddle-leaf fig is a beautiful foliage plant, and if it develops rust spots, its ornamental value will be seriously affected. So, for the sake of the fiddle-leaf fig's appearance, you should prevent the problem in time. Of course, even if the fiddle-leaf fig leaves do develop rust spots, it's not a big deal; just stay calm and solve it as described above. That's all we have to share about rust spots on fiddle-leaf fig, and we hope it helps.

What to do when fiddle-leaf fig develops rust spots?

Appearance of rust spots on fiddle-leaf fig:

At first there will be spots the size of a fingernail, which some growers also call red patches; gradually the small spots grow more and more numerous until they merge into one patch, turning the entire leaf brown, with no moisture left and the leaf curled.

Causes of rust spots on fiddle-leaf fig:

Rust spots on fiddle-leaf fig tend to occur under conditions of higher temperature and greater humidity, especially in places such as Guangzhou, where March to June and October to November are the peak periods; at the same time, these diseases can overwinter along with the plant and become active again the following year, continuing to harm its leaves.

How to handle fiddle-leaf fig after rust spots appear:

1. If the leaves are fairly badly affected, it is recommended to cut the leaves off directly;

2. If the whole plant is fairly heavily infected by this disease, you can first remove the affected parts, then repot and change the soil;

3. You can also use a specialized chemical for spraying treatment; if the condition isn't serious, spraying with the chemical alone may suffice, and if serious, repotting and changing the soil should also be considered;

4. Once rust spots appear, never spray water on the leaves.

Prevention methods for rust spots on fiddle-leaf fig:

1. In daily care, keep the leaves clean; you can wipe the leaves at irregular intervals;

2. Choose soil with good drainage and aeration for planting;

3. Ventilation and light are very important; even after symptoms are discovered, the first thing is to move the affected part into the sunlight to be exposed;

What to do when fiddle-leaf fig leaves develop rust spots?

1. Causes of rust spots on fiddle-leaf fig

If the indoor temperature is high and the humidity exceeds what the fiddle-leaf fig can tolerate, its leaves are prone to rust spots, especially in early spring and early winter in southern regions. Another reason is that the fiddle-leaf fig itself carries the rust spot disease from previous years, which becomes active again the following year and harms the fiddle-leaf fig's leaves, thus producing rust spots.

2. How to handle fiddle-leaf fig after rust spots appear

If the leaves are too badly affected by rust spots, the entire leaf needs to be cut off directly. If the whole fiddle-leaf fig is infected by the rust spot disease, you can first remove all the parts affected by rust spots, then repot and change the soil, and replant. If the rust spots have just appeared, you can choose to spray a chemical specifically for treating rust spots onto the affected areas for prevention and control. Note that after rust spots appear, do not spray water on the leaves again, so as to avoid the disease spreading and damaging the entire leaf.