The ultimate guide to bonsai trees for the Bonsai-Curious
Caring for a bonsai tree is a rewarding, creative hobby. With the right love and maintenance, these special plants will grow into beautiful companions that last for generations. But getting started can be daunting! From picking a tree to establishing the best care routine, there’s a lot to learn!
Worry not, new growers, this is the ultimate guide to bonsai trees and will tell you everything you need to know!
- Section One: What Is a Bonsai Tree?
- History of Bonsai
- Science of Bonsai
- Section Two: Getting Started
- Selecting Your Tree
- Tools of the Trade
- Choosing a Container
- Section Three: Care & Maintenance
- Where to Place Your Tree
- Watering Best Practices
- Choosing a Soil
- Fertilization Approaches
- Section Four: Style & Structure
- Trimming & Pruning
The Ultimate Guide to Bonsai Trees
Section One: What Is a Bonsai Tree?
The History of Bonsai
The word bonsai means “planted in containers” in Japanese. The practice of cultivating trees into miniature landscapes, however, originated in China over 2,300 years ago, as an art form called pun-jai. Over time, Zen Buddhists in Japan adopted bonsai as a meditative process that puts the caretaker in harmony with nature. Today, in English, bonsai is used to describe all manners of small trees in shallow containers.
The Science of Bonsai
It’s a common misconception, but a bonsai is not a specific type of tree. Almost any type of tree will “bonsai” if it is grown correctly. By limiting root growth and strategically pruning branches, you can create a miniature version of Mother Nature’s finest work that can live just as long as its life-sized counterparts!
Section Two: Getting Started
Selecting Your Tree
There are two ways to get started growing bonsai. Many new caretakers opt to purchase an established tree from a nursery, but cultivating your own can be rewarding too! You’ll have to be patient, though: growing a bonsai from a sapling can take up to five years.
- Fukien Tea
- Chinese Elm
Tools of the Trade
When it comes to growing bonsai, patience is your most valuable tool. But a few other pieces of equipment can help too!
- Pruning shears: For cleanly cutting delicate shoots and twigs
- Concave cutters: To cut larger branches flush to the trunk during structural pruning
- Root rake: For removing soil around the bonsai roots during repotting, weeding, and loosening up compacted soil
- Training wire: To shape the direction of your tree’s new growth
Choosing Your Container
If you purchase from a nursery, your bonsai will already have a pot that it calls home. But eventually, it will be time for a move!
Here’s what you need to keep in mind:
- Depth: Choose a pot that is as tall as your tree’s trunk is wide.
- Width: Your container should be ⅓ as wide as your tree is tall.
- Style: Your pot should have the same balance of masculine vs. feminine traits. Visit our guide to bonsai tree pots to learn more.
Section Three: Care & Maintenance
Where to Place Your Tree
Placement is a critical part of bonsai tree care. Whether you keep your bonsai indoors or outdoors, you’ll need to make sure you provide the right environment for it to grow strong.
Outdoor Bonsai Placement
- Climate: Most bonsai are happiest outdoors, but you need to make sure the species is appropriate for your region. Do your research and choose one that can tolerate the climate where you live.
- Light: Place your bonsai in a well-lit area of your yard; you may have to relocate as sunlight levels change to ensure your tree receives 5 hours of direct sun daily.
- Weather: Outdoor bonsai are more susceptible to the elements, so avoid windy places and shelter your bonsai when inclement weather is on its way.
Indoor Bonsai Placement
- Light: South-facing windows are best; consider supplementing with grow lights if it cannot access 5 hours of direct sunlight.
- Humidity: A humid bonsai is a happy bonsai. Kitchens and bathrooms tend to be the most humid rooms of a home, but humidity trays can help boost the moisture in any room!
- Pests: Keep your bonsai in a clean, well-aerated environment to prevent pests and dust buildup (which inhibits photosynthesis).
- Heat: Avoid placing your bonsai near radiators, ovens, and fireplaces; excessive heat can make your tree dry up and die.
Watering Best Practices
If you take nothing else from this guide to bonsai trees, remember: Don’t stick to a set watering schedule—learn to read your plant! Some trees will need to be watered daily, while others can go a week or more without getting too thirsty. Not to mention, bonsai watering schedules often change with the seasons.
Instead of marking your calendar, watch your tree closely, and consider the following:
- Once the topsoil has dried out, stick your finger (or a moisture meter) 2 inches deep. If that soil is still just slightly moist, it’s bath time!
- Avoid cold water, which can cause the soil temperature to drop abruptly and shock your plant. For this same reason, always try to water your plant in the morning or evening, rather than midday.
- Drench it! Make sure you wet the entire root mass thoroughly while watering.
Choosing a Soil
We recommend starting with a store-bought bonsai soil to eliminate guesswork, but our guide to bonsai tree soil tells you everything you need to know to buy or blend the perfect mix! Whichever approach you choose, you’ll want to house your tree in a well-aerated soil that drains sufficiently, while retaining enough water to stay moist.
Fertilization is crucial for a healthy tree. Different types of bonsai require different fertilization schedules, but a good rule of thumb is to do the bulk of your fertilizing during the growing months (that’s early spring through late summer).
- Tropical and subtropical: Fertilize weekly during the growing season.
- Deciduous: Fertilize weekly throughout the growing season until leaves drop.
- Coniferous: Fertilize weekly during the growing season and monthly during cooler seasons.
Dig into everything you need to know with our Ultimate Guide to Bonsai Tree Fertilizer.
An Alternative Approach
One way to sidestep the headache of developing a fertilization routine is to feed your tree every time you water. We recommend a urea-free bonsai fertilizer that is gentle on your tree while giving it a steady dose of nutrients all year round.
Section Four: Style & Structure
Trimming & Pruning
Trimming and pruning are essential for the bonsai effect. They can be intimidating, but it’s easy if you know the basics (we promise!). Rule one? Only trim and prune during the growing season.
- Maintenance pruning: Trim small sticks and branches at the top of your tree to force your tree to produce dense growth closer to the base. The key here is to keep it short and catch runaways.
- Pruning coniferous bonsai: Avoid using cutting shears on coniferous bonsai—they’re sensitive! Pinch the stems off with your fingers instead. Never defoliate a bonsai branch you want to keep on your tree; the foliage won’t grow back!
- Structural pruning: Sometimes you’ll need to do more intensive trimming of larger branches. Keep these tips in mind:
- Trim branches close to the ground.
- Trim branches growing parallel with the trunk.
- Trim branches that cross other branches.
- Trim branches that are too thick on top.
Is there anything else you’d like to see in our Ultimate Guide to Bonsai Trees? Leave your questions and comments below!
Bonsai With Us!
The Bonsai Resource Center is here to help you learn the best bonsai tree care and provide you with the tools you need to keep your tree healthy and strong. Explore our other articles, visit our online shop, and connect with other bonsai lovers in our Facebook group to learn everything you need to know about this rewarding hobby!
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