Bonsai Watering Can: The Benefits and Uses

There are many ways to water a bonsai, which should probably become a new saying for us in the bonsai community so we can save the poor cats. Not giving the right amount of liquid to your small tree is one of the top ways to kill it, either too much or too little. One method that’s popular is the bonsai watering can, and for good reason.

Each bonsai species has a different requirement, and there are also seasonal considerations. That’s why we steer clear of irrigation systems or hose pipes as a holistic approach unless you have a way to monitor how much each type receives. Here’s our guide on using a bonsai watering can.

bonsai watering can

What is a bonsai watering can?

The name says it all, but many people don’t know that they’re available or what their benefits are. A bonsai watering can is a device you use to carefully supply water to the soil in a way that distributes the liquid evenly. There are various sizes, giving you a chance to water all your bonsais with the can in one go.

The water can for bonsai has a basic design. You have the main compartment that stores the water, while the long spout draws the water out when you tip the handle. There’s usually a sprinkler head attached at the end, which drops the water in a rain-like fashion to make it feel natural.

Types of bonsai watering cans

While they’re mostly the same, there are a few variations of the bonsai watering can. Firstly, there are different materials, such as nickel, copper, stainless steel, and plastic. They vary in price depending on the material and size. 

This brings us to the next point. The size you’ll choose depends on how many and how large your bonsais are. It’s better to get one that can hold more water than you need when watering your bonsais so that you don’t have to refill too often, saving your energy.

You also have different designs. The essential parts usually remain the same, such as the compartment, spout, and spray nozzle. However, they may differ in where they are placed, how many spouts they have, or whether they have one or two handles.

bonsai watering can

Where to buy a watering can for your bonsai

Your local plant store will probably have a standard can for watering household plants, which will also work. If you head to a shop that sells an actual bonsai watering can, you may see some extra attachments or different designs. They’ll give you more freedom of choice for the required purpose.

Local marketplaces or trading zones may surprise you with DIY bonsai watering cans that the sellers designed at home. While you might not buy one, it may inspire you for making your own ones.

The one way we usually search for the best bonsai watering cans is via online stores. We’re a bit of a sucker for Amazon, as there are so many products available from various sellers. It’s incredible to see the variety and what people can come up with when they use their creative sides.  

bonsai watering can

Top bonsai cans for watering your small trees

If you’re looking for a top-quality watering can for your bonsais, we do have a few we can recommend. Not only do we like the material, but the designs are excellent for caring for your bonsai trees. Feel free to check a few other related products in the online store.

1Gallon Watering Can for Indoor Plants

1 Pint Plastic Watering Can - Used for Houseplants

Mini Watering Can for Indoor Plants

XXXFLOWER Watering Can

Bonsai Tree Watering Can

Benefits of using a bonsai watering can

We’ve mentioned at the start that there are many ways you can give liquid to your small tree. Some of the more popular ones are automatic irrigation systems, drip systems, misting, and hose pipes. Here are a few reasons why the bonsai watering can is a better option for your precious trees:

  • Controlled watering: Since each species has different watering needs, you control how much water is supplied to each one. You don’t want some of them overwatered by using an automated irrigation system across all of them.
  • Separating misting from watering: A misting bottle is fine for increasing humidity, although it doesn’t always work so well. It’s not a good idea to use that bottle for actually watering, as some trees have roots that love drowning in water, such as the Swamp Cypress or Syzygium.
  • Fewer trips: If you have the right capacity in your bonsai watering can, you might only need to take one trip to water all of them and then refill the can. 
  • Storing water for the next day: The one benefit the watering can has over hose pipes and irrigation systems is that you can store water in it until you’re ready to give it to your bonsai trees. When you supply directly from the tap, trace amounts of chlorine may affect their health. If you leave it to stand for 24 hours, it neutralizes the water and makes it safer.
  • Even distribution: The spray nozzle attachment at the end of the bonsai watering can help distribute the water like rain. It’s a more natural supply, which works similar to an irrigation system. 

bonsai watering can

Features to consider

Before you head out to buy your bonsai watering can, there are a few things you should consider. It’s not just about how useful it is, but also whether or not it suits your purposes. So, check these pointers when you’re shopping online or in the store.

  1. Make sure you buy the right size to cover as many of your bonsais at once as possible
  2. Test the can filled with water to see if you can carry the weight of the full volume
  3. Check to see if any water spills out the sides of the spray nozzle
  4. Inspect all surfaces for dents or damage
  5. Decide beforehand which material you’re looking for
  6. A bonus is if there are extra attachments or bonsai tools as part of the package

bonsai watering can

Common Questions about Bonsai Watering Cans

Many people that buy watering cans for bonsais usually have follow-up questions. We’ve answered several of them below based on our own experience. If you have any other questions, please let us know in the comments.

If you decide to use a hose pipe, you need an attachment that will spray onto your bonsai trees like rain so it feels natural. You can also use a misting bottle or a bonsai humidity tray to increase moisture in the air. We still recommend a bonsai watering can over these options.

There are two ways you can water your bonsai: by sprinkling water over the soil or placing it in a tub of water. The method to use largely depends on the species you have, as some are drought-rsis.

While rainwater is the best for bonsai trees, you can also use tap water. However, hard tap water may leave salt deposits and contain trace elements that may harm your plant. That’s why we recommend leaving the liquid in your bonsai watering can for 24 hours before using it.

Some bonsai species don’t like too much water, and it may lead to root rot and other diseases. It’s best to do research on your specific species to see how much water it likes during the different seasons. It may vary from twice a week and daily in summer to once a week in winter.

You can do either one, but bottom watering from a tray is the safest method. It prevents overwatering and root rot, as the bonsai only drinks as much as is needed. However, some species like swamp-like conditions, which is when you’ll need to bathe the soil in water via a tub.

For those bonsai trees that love water, you’ll need to submerge the soil in water at least once a week in spring and summer. Wait until you no longer see bubbles appearing in the water, or at least half an hour. Then, let it drip dry outside, and don’t water again until you feel the soil is dry. We recommend you stay away from using this method in winter, as the cold and water can do harm to the roots and soil.

Leave a Reply

Your email address will not be published. Required fields are marked *

Shaun has two passions in life that combine into an extravagant show on Bonsai Alchemist. The one is for writing and the second bonsais. He’s been writing fantasy and horror novels since 2000, while also creating online content since 2015. He’s involved with writing for films and games. Finally, he’s also the owner of a book publishing company.

He received his first bonsai as a gift in 2009 and has been growing several species in his quiet home in South Africa. He prefers propagating new life instead of buying bonsais at the store. His son and daughter share his love for nature, while his wife stares on at her introverted hermit husband.


Shaun M Jooste


Edit Content


Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.

Certain content that appears on this site comes from Amazon. This content is provided “as is” and is subject to change or removal at any time.

This website uses cookies to ensure you get the best experience on our website.