How to care for: Calathea
The Calathea is one of the most famous indoor plants globally. You can recognize the plant by its leaves. The leaves have a rich color of green and are wide-shaped with white or purple in the middle of the leaf. The best part about the leaves is that the underside is either maroon or purple, making it an extremely aesthetic plant to have as an interior decoration.
Water once a week
How do you take care of a Calathea?
The Calathea consumes a lot of water. In summer it is best to add small amounts of water twice a week. From autumn to spring once a week is sufficient. It is important that the Calathea always has its soil moist. However, make sure you don't overwater the plant, as this can cause the root to rot.
Try giving Calathea plants lukewarm water instead of cold, as they're used to warmer temperatures.
The Calathea uses a lot of energy from spring onwards to make new leaves. As a result, the plant needs extra nutrients. You can provide these nutrients by plant nutrition. We recommend giving plant nutrition once every two weeks. From spring until autumn. After autumn and in winter it is better to stop giving extra nutrients. In the autumn, plant nutrition can actually be harmful for the Calathea!
We recommend repotting the Calathea every 2 years. Repotting gives the plant new nutrients and more room for root growth. The airier soil is also very good for the water flowing through. The best period to repot is spring.
The Calathea is very air-purifying plant. This is mainly due to the long leaves of Calathea. The long leaf surface gives the plant extra stomata. The Calathea uses these stomata to convert CO2 into oxygen during the day. And that is always good. For you and your home.
Is a Calathea toxic?
They're non toxic for humans and pets, making them the perfect choice as an indoor plant.
Diseases and peculiarities
If the air is too dry, the Calathea can suffer from spider mites. To prevent spider mites, it is best to use the plant sprayer once a week. Spider mites are an infection of mites on plants. You can recognise the infection by infected leaves and a kind of cobwebs. If you have come across spider mites, it is best to place the plant outside. Wind and moisture from outside will quickly keep the spider mite away.
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Frequently asked questions about the Calathea
Why are the leaves of my Calathea curling?
The leaves of a Calathea can curl for several reasons.
The most common reason is that the air is too dry. You can increase the humidity by spraying the leaves of the plant with a plant spray.
It is also possible that the leaves are curling because the plant is not getting enough water. You can test this by sticking a finger or a toothpick into the soil.
- Is the soil of the Calathea dry 2 days after watering? Then give it more water next time.
- Is the soil of the Calathea wet 6 days after watering? Then give it less water next time.
Why are the leaves of my Calathea drooping?
The leaves of the Calathea usually droop when the plant doesn't get enough water. Water the plant and you will see that within a few hours the leaves will be upright again.
Why do the leaves of my Calathea get brown edges?
If the Calathea gets too much light the leaves may develop brown edges. It is also possible that these brown edges are caused by a location with a lot of draught.
Can you propagate a Calathea?
Yes, you certainly can. Check out our tips on how to propagate the Calathea.