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Why is my sago palm turning yellow – 4 common issues and solutions for houseplant success
By Ciéra Cree,
2 days ago
Q: My indoor potted sago palm houseplants appear to be facing trouble. Their long feather-like leaves which are normally a deep shiny green are becoming yellow. What might have caused this to happen, and is it too late to fix the problem?
A: There are a number of reasons why this might be happening to your sago palm, but fear not! Sago plants are some of the best indoor plants , and with early identification, a yellowing plant can be saved. Here, I share common causes and advice to resolve your plant problems.
(Image credit: Future/Rachel Bull)
4 causes for sago palms turning yellow
The following, or a combination of the following, could all be reasons contributing to the leaves on your tropical indoor plants turning yellow, according to Alexandra Moreno, landscape designer and tropical plant expert at Atlanta Palms.
1. Overwatering or underwatering
(Image credit: Getty Images/Olga Peshkova )
'Sago palms are highly sensitive to excess water,' says Alexandra Moreno. 'If the roots are left sitting in water, they will quickly develop root rot, which then causes the leaves of the plant to turn yellow.'
If the soil feels dry to the touch, give your potted sago palm a light water. Although the plant is naturally drought tolerant, it still requires moderate moisture to say happy and healthy.
'To ensure proper hydration, I recommend using a moisture meter to ensure you are giving your sago palm water only when necessary,' says Moreno. 'Water it slowly to allow the soil to absorb the water fully, too.'
This multifunctional meter tells you so much information about your soil. You'll be kept up to date on your soil's moisture levels as well as its pH, temperature and light intensity. Suitable for home plants, gardens, lawns and farms.
2. Nutrient deficiency
(Image credit: Kseniya Ovchinnikova via Getty Images)
Plants obtain many vital nutrients through the soil you place them in, so if your soil isn't of quality your plants will be suffering.
'A lack of essential nutrients or using the wrong fertilizer can lead to yellow leaves,' says Moreno. 'On the other hand, over-fertilizing can cause leaf burn, also resulting in yellowing.'
Sago palms specifically flourish under the right levels of magnesium and nitrogen, as well as potassium and manganese. Adding a slow-release fertilizer into your sago palm's pot containing these nutrients, such as the fern and palm fertilizer sticks from Amazon, should keep your plant in top form going forward.
A packet of easy to use compact fertilizer sticks designed to take care of your plant and its soil for up to twelve weeks. It will release a continuous supply of nutrients below the surface, straight to the roots.
3. Too much sun
(Image credit: Getty Images/rotofrank )
We all know that plants need sunlight to grow in top form, but having too much of a good thing can leave your sago palm's leaves in a sorry state. While this will depend on where you live, your US hardiness zone , and the aspect of your home, keeping an eye on sunlight is important.
'Sago palms thrive in bright indirect light,' says Moreno. 'Being exposed to too much direct sunlight can scorch the leaves, causing them to turn yellow.'
Placing sago palms near a porch with an awning is an ideal place for an outdoor plant, but when considering the needs of an indoor sago palm, it's mainly important to make sure it isn't sitting next to glass that is subjected to the full exposure of the sun all day. This can cause the glass to magnify the sun's heat and damage the leaves.
If your sago palm plant ends up struggling with too much or too little light, why not consider using a grow light? It will grant you better control over the amount of light your plant is receiving, ridding you of worries such as scorches.
LED Grow Light
This full spectrum grow light is perfect for promoting the growth of indoor plants. It has an adjustable height, brightness and timer.
4. Temperature stress
(Image credit: Lisovskaya via Getty Images)
Sago palms thrive in a warmer climate, so if the weather in your area is prone to fluctuating or on the colder side, your palm is likely to feel it.
If you're thinking of doing more indoor gardening in the future and plan to invest in a grow light for your indoor sago palm, we recommend taking time to read up on the particular specifications of each light before purchase. Certain lights will also emit heat, helping to regulate the temperature of your houseplant, whereas others won't include this feature.
Moreno concludes, 'Remember, with the sago palm less is more. Overwatering, excessive sunlight, and over-fertilizing are common causes of yellowing leaves. By following these simple guidelines, you can ensure that your sago palm stays green and healthy year-round.'
Why not try your hand at growing some more indoor plants? There are so many tropical and unusual plants to try and grow at home that are sure to elevate your indoor jungle. Learning to cultivate an indoor growing system will have you producing your own mini green escape in no time.
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