What to Do When Sago Palm Leaves Turn Yellow? Cause Analysis and Solutions

The sago palm is an evergreen woody plant with slow growth and a lifespan of over 200 years. It has a simple, ancient tree form with a thick, sturdy trunk that is as hard as iron, which is how it got its name. Its leaf tips are sharp like needles, and it is a common large foliage plant. However, during the cultivation of sago palms, leaf tip scorching and leaf yellowing often occur. Let's take a look at what to do when sago palm leaves turn yellow!

Overwatering

[Cause] Once a sago palm is overwatered, it will lead to root rot, and root rot very easily causes leaves to turn yellow, and it causes yellowing over a relatively large area of leaves.

[Solution] If the sago palm is potted, it should be transplanted into a drier pot, and the rotten roots and yellow leaves should be cut off. After a period of time, it will return to normal.

Underwatering

[Cause] A sago palm can also develop yellow leaves due to lack of water and drought. Its characteristic is that the old leaves turn yellow first from the bottom up. If the water shortage lasts a little longer, the whole plant's leaves will turn yellow, and it may even die.

[Solution] Water it in a timely manner.

Yellowing Due to Lack of Fertilizer

[Cause] Why is the sago palm called the iron tree? It is because the sago palm relatively likes iron. When many people grow sago palms, they place a handful of iron nails or iron filings at the base of the plant so that it can absorb enough iron.

[Solution] Apply a ferrous sulfate solution to quickly provide iron to the sago palm, then bury a certain amount of iron nails or iron filings.

Yellowing Due to Cold Damage

[Cause] The sago palm is a plant that likes warmth and is not very cold-tolerant. In environments below 0°C, it is very prone to cold damage. In severe cases, all the leaves of the entire plant turn yellow, but after spring begins, normal new leaves will grow, and the yellow leaves just need to be cut off.

[Solution] In winter, put a thick protective cover on the sago palm to keep it warm, and try as much as possible to prevent the sago palm's leaves from turning yellow.

Insufficient Light

[Cause] The sago palm is a light-loving plant. If it is placed in a dark environment for a long time, it will cause the sago palm's leaves to turn yellow.

[Solution] Often move the sago palm into the sunlight, or simply place the sago palm in a place with plenty of sunlight.

Pests and Diseases

[Cause] When sago palm leaves are damaged by scale insects, some affected leaves will turn yellow due to the damage.

[Solution] Spray a certain amount of 3% high-permeability fenoxycarb.

Overfertilizing

[Cause] A sago palm can also develop yellow leaves due to overly frequent fertilization or excessively high concentration. The characteristic is that the young leaves are thick, glossy, and uneven.

[Solution] Transplant the sago palm into a flowerpot with relatively ordinary soil. Remember not to apply excessive fertilizer, as it very easily causes root burn. After transplanting, simply remove the yellowed leaves, and after a period of time it will return to normal.