Proper watering is a huge part of caring for your indoor bonsai tree. Two of the leading causes of death in bonsai trees are over-watering and under-watering. For your tree to thrive, it needs to be watered properly. In this article, we will discuss everything you need to know about watering your indoor bonsai tree.

How Often Should I Water My Bonsai?

bonsai watering

You should water your indoor bonsai tree only when the soil gets slightly dry. One rule that you should always follow is to never water on a routine. Watering on a routine can cause you to over- or under-water your plant, both of which could kill it. Some days your tree may need to be watered two or three times, while on other days it may not need to be watered at all. You can only really know if your tree needs to be watered if you check the soil.

How Can I Check My Bonsai’s Soil Moisture?

There are a few ways you can check your indoor bonsai tree’s soil.

The first way to check the soil is by using your finger. Simply insert your finger about one inch into the soil. If your finger is damp, you do not need to water, but if it is dry, you should water your tree. This method is not always the most accurate. For example, if the soil is cold, you may think the soil is wet and water your tree when you shouldn’t. Instead, we recommend trying the methods below if at all possible.

Another way to check your indoor bonsai tree’s soil is to use a chopstick. Take a plain, clean chopstick and insert the chopstick an inch or two into the soil. Wait 10 minutes, then pull the chopstick out. If the chopstick has a watermark or has darkened, your soil is still moist, and the tree does not need to be watered. If the chopstick is dry, it is time to water your tree. After you have checked the soil, rinse off the chopstick and set it aside to dry. Store it in a dry place so you can use it next time.

The last method of checking your tree’s soil is using a moisture meter. A moisture meter is the perfect way to tell whether you need to water your tree. This device measures your tree’s moisture levels at the root. This is particularly helpful if you have trouble with over- or under-watering. The soil’s moisture is measured on a scale of 1 to 10; 1 is the driest measurement and 10 is the wettest. Simply insert the probe into the plant at root level. If the moisture level is 3 or lower, you need to water your bonsai. Anything over 3 means the soil is still moist. After using the moisture meter, clean it and store it in a dry place.

When Should I Water My Bonsai?

Now you know that you should water your tree when the soil gets slightly dry, but what about the time of day? Generally, it doesn’t matter what time of day you water your plant, especially for indoor trees. When you notice your tree needs to be watered, you should water it immediately, no matter the time of day.

What Kind of Water Should I Use?

You can use regular tap water when watering your trees. Leaving tap water out overnight can ensure that no chlorine is in your water when you water your tree the next day.

How to Water Your Tree

Once you have checked your soil and know that your tree’s soil is dry, it is time to water your tree. Put some water in a watering can with a fine nozzle. Water generously until the water starts to drip out of the tree’s drainage holes. Wait until the water has stopped dripping and water once more.

Now you know how to properly water your bonsai trees. You should only water when the tree needs it, not on a daily routine. There are several ways you can check your tree’s soil, including with your finger, a chopstick, or a moisture meter. No matter what time of day it is, you should water your tree as soon as it needs to be watered. Water generously twice, and you’re done until next time!