Bonsai Basics: What I Wish I Knew When I Started Growing Bonsai

When I first became interested in bonsai, I thought the hardest part would be learning how to shape a tree.

I was fascinated by dramatic trunks, beautiful branches, exposed roots, aged bark, and those tiny trees that somehow looked like full-grown trees that had simply been transported into a pot. I wanted to learn wiring, pruning, repotting, propagation, and all the techniques that make bonsai look like bonsai.

But the longer I spend growing trees, the more I realize that bonsai basics have very little to do with making a tree look beautiful.

The real foundation is learning how to keep the tree healthy while gradually guiding its growth.

That sounds simple, but it changes the way you approach almost everything.

A bonsai is still a living tree. It still needs sunlight, water, oxygen around its roots, nutrients, and enough healthy foliage to produce energy. The fact that it is growing in a small container simply means that I have taken away many of the resources a tree would normally have access to in the ground.

And that means I have to pay attention

What Is Bonsai?

Bonsai is the cultivation and training of trees and woody plants in containers to create a convincing representation of a mature tree in nature.

A bonsai is not genetically a miniature tree. Its small size is maintained through a combination of container culture, root management, branch pruning, shoot pruning, and other horticultural techniques. Almost any woody plant can potentially be trained as bonsai, although some species are much more suitable than others because of their leaf size, growth characteristics, bark, branching habits, and ability to tolerate repeated pruning.

This distinction is important for beginners. You are not simply “keeping a tree small”; you are continuously managing the tree’s growth while trying to create a natural-looking composition.

RHS guide to growing bonsai

Can Any Tree Become a Bonsai?

Technically, many woody plants can be grown as bonsai, but that does not mean every species makes a good bonsai subject.

Some species have naturally small leaves, flexible branches, attractive bark, or good ramification, making them easier to develop into convincing miniature trees. Others may have leaves that remain disproportionately large or growth habits that make traditional bonsai styling more difficult.

Common bonsai subjects include:

For Filipino bonsai growers, this is where the local climate becomes an advantage. Tropical and subtropical species can provide excellent bonsai material, and many species commonly grown in the Philippines can grow actively for much longer periods than trees subjected to cold winters.

However, a tropical climate does not mean every bonsai can simply be placed anywhere outdoors. Light intensity, heat, wind, rainfall, humidity, pot size, and the particular species all influence how quickly a tree dries out and how well it grows.

Bonsai Basics: Understanding the Three Parts of a Bonsai

When you look at a bonsai, it helps to stop thinking of it as just “a tree in a pot.”

There are really three connected systems you need to understand:

1. The Roots

The roots anchor the tree and provide water and nutrients. In a bonsai, the root system is deliberately confined to a relatively small container, which means the grower has to pay much closer attention to root health than they would with a tree planted directly in the ground.

Healthy roots are the foundation of everything above the soil.

2. The Trunk and Branches

The trunk provides the main structure of the tree. Its movement, taper, bark, scars, and surface roots can contribute greatly to the character of the bonsai.

Branches are then developed around that trunk to create the impression of an old tree that has experienced years of growth.

3. The Foliage

Leaves and shoots are where the tree produces energy through photosynthesis. Beginners sometimes become too focused on making foliage look compact and forget that vigorous foliage is necessary for the tree to recover from pruning and develop a strong root system.

A beautiful bonsai is ultimately the result of balancing all three.

The Most Important Bonsai Basics

There are many techniques you can learn later, but beginners should concentrate on a few fundamental areas first:

1. Proper placement and sunlight
2. Correct watering
3. Appropriate soil or substrate
4. Fertilization
5. Pruning
6. Wiring and training
7. Repotting and root management
8. Pest and disease monitoring

These areas are closely connected. A tree that is poorly watered will not respond well to pruning, and a tree with unhealthy roots will struggle regardless of how beautifully it has been wired.

1. Give Your Bonsai the Right Amount of Light

Light is one of the most important factors affecting bonsai health.

Most outdoor bonsai need substantial sunlight because they are still trees. The exact requirement depends on the species, however, so you should identify the tree before deciding where to place it.

A common beginner mistake is assuming that because bonsai trees are small, they can be treated like indoor decorative plants. Many species that are sold as bonsai are actually outdoor trees and can decline rapidly when kept permanently inside a poorly lit room.

In the Philippines, this distinction is especially useful. Tropical bonsai can often be grown outdoors, but intense afternoon heat, reflected heat from concrete, and sudden changes in weather can create conditions that are considerably harsher than the average beginner expects.

Observe your growing area rather than relying only on a label that says “full sun.”

A tree receiving morning sun and afternoon shade may behave very differently from one receiving strong sun throughout the day.

2. Learn How to Water Bonsai Properly

If there is one bonsai skill every beginner should learn first, it is watering.

The goal is not to water a bonsai once every morning or every evening simply because that is your routine. The tree should be watered according to its actual needs.

Watering frequency changes depending on:

• Tree species
• Pot size
• Soil composition
• Amount of sunlight
• Temperature
• Wind
• Humidity
• Rainfall
• Root development
• Season

Bonsai Empire’s bonsai watering guide

How Do You Know When to Water?

Check the soil rather than blindly following a calendar.

As a beginner, you can inspect the upper portion of the substrate with your finger and observe its moisture level. Some bonsai substrates also become noticeably lighter in color as they dry.

The important lesson is that the surface does not always tell the whole story. You need to learn how quickly each individual tree dries.

This is particularly important in a Philippine garden because two trees sitting beside each other can have completely different watering requirements. A small tree in a shallow pot exposed to wind may dry out much faster than a larger tree sitting in partial shade.

How Should You Water?

When the tree needs water, water thoroughly.

Apply enough water to wet the entire root ball and continue until water flows freely from the drainage holes. This helps ensure that water reaches the roots rather than only wetting the surface.

Avoid treating bonsai like a normal houseplant by giving it a small amount of water every day.

A small amount of water may wet only the upper layer of the substrate while leaving portions of the root system dry.

3. Use a Bonsai-Appropriate Growing Medium

Bonsai soil is not simply ordinary garden soil placed into a small pot.

A good bonsai substrate needs to balance several competing requirements:

• Water retention
• Drainage
• Air movement
• Root stability
• Nutrient management
• Particle structure

The ideal mix depends on the species and growing environment.

Common bonsai substrates include materials such as pumice, lava rock, akadama, sand, and various organic components. Some growers use different combinations depending on whether they are developing young trees, maintaining mature bonsai, or working with species that have particular moisture requirements.

Bonsai Empire’s bonsai soil guide

There is no universal “magic bonsai soil.”

A mix that works beautifully in a cool, dry climate may require adjustment in a hot and humid Philippine garden. This is one reason experienced growers pay attention to how quickly their particular substrate dries instead of blindly copying a soil recipe.

4. Fertilizing Your Bonsai

A bonsai lives in a container with a limited amount of growing medium.

Unlike a tree planted in the ground, its roots cannot continue exploring new soil indefinitely in search of nutrients. Nutrients are therefore replenished through fertilization and, when appropriate, the replacement of old substrate during repotting.

The exact fertilizer program depends on the species, stage of development, growing conditions, and type of fertilizer being used.

A young tree being developed for trunk thickness may have very different nutritional requirements from an old exhibition tree that is being maintained for refinement.

For beginners, the important lesson is simple: fertilizer is not a substitute for sunlight, healthy roots, or proper watering.

A weak tree should not automatically be “fixed” by adding more fertilizer.

5. Pruning: How Bonsai Trees Are Shaped

Pruning is one of the techniques that makes bonsai different from ordinary container gardening.

There are several reasons to prune:

• Remove unwanted branches
• Improve the structure of the tree
• Encourage ramification
• Maintain the desired silhouette
• Redirect growth
• Remove damaged or diseased material
• Develop taper and branch placement

However, pruning should not be approached as simply cutting anything that sticks out.

Before making a cut, look at the entire tree.

Ask yourself:

What will this branch become if I leave it?

Where will the next branch develop?

Is this branch contributing to the trunk’s movement and overall design?

Will removing it weaken the tree unnecessarily?

This way of thinking becomes increasingly important as a tree becomes more developed.

Structural Pruning vs. Maintenance Pruning

Structural pruning is used to make major decisions about the architecture of the tree.

Maintenance pruning is more about keeping an established design compact and refined.

A beginner should learn to recognize the difference because removing a large structural branch is very different from trimming a few long shoots.

Bonsai Empire’s beginner bonsai techniques guide

6. Wiring Bonsai

Wiring allows you to position branches rather than simply waiting for them to grow in the direction you want.

Aluminum and copper wire are commonly used for bonsai training. The wire is wrapped around branches and used to guide their position gradually.

Wiring is particularly useful when a branch has good potential but is growing in an undesirable direction.

The biggest beginner mistake is forgetting that branches continue to grow after they have been wired.

As the branch becomes thicker, the wire can begin to bite into the bark and leave permanent marks. Check wired trees regularly and remove the wire before it becomes embedded.

Wiring is therefore not a “set it and forget it” technique.

7. Repotting and Root Pruning

Repotting is another essential part of bonsai cultivation.

Over time, roots fill the available space and the growing medium can lose its desirable structure. Repotting allows the grower to inspect the roots, refresh the substrate, and manage root development.

But repotting should not be performed simply because a particular date on the calendar has arrived.

The appropriate timing depends heavily on the species and climate.

For many bonsai, repotting is traditionally performed around the beginning of a period of active growth, while tropical species may follow different patterns depending on local conditions.

Bonsai Empire’s bonsai repotting guide

Signs That a Bonsai May Need Repotting

Look for signs such as:

• Roots becoming densely packed
• Roots circling heavily around the container
• Water draining unusually slowly
• Growing medium becoming compacted
• The tree drying out unusually quickly
• Declining growth despite otherwise appropriate care

Do not repot a healthy tree merely because you believe “bonsai should be repotted every two years.”

Repotting is a horticultural intervention, not a ritual.

8. Learn to Observe Your Trees

This is perhaps the most valuable bonsai skill and one that cannot be learned entirely from books.

Spend time looking at your trees.

Notice how quickly the soil dries. Observe where new shoots appear. Watch how the leaves respond to changes in sunlight. Look at how a particular species responds after pruning or repotting.

In maintaining a collection, I have found that the daily routine of observation becomes just as important as the actual bonsai techniques. Once you spend enough time with your trees, you begin to recognize subtle changes before they become obvious problems.

That habit is especially valuable when maintaining several species because there is no single watering, fertilizing, or pruning schedule that works perfectly for every tree.

Bonsai in the Philippine Climate

Growing bonsai in the Philippines presents a different set of conditions from the classic bonsai environments many beginners see in Japanese books and videos.

The country has a generally warm climate, high humidity, intense sunlight, heavy rainfall in many areas, and regional differences in temperature and weather.

That means Filipino bonsai growers need to adapt traditional techniques rather than copy them blindly.

Heat

Small bonsai pots can heat up quickly when exposed to intense sunlight, particularly when placed on concrete or other surfaces that reflect and retain heat.

Rain

Rain can provide excellent natural watering, but prolonged periods of rain can also keep the substrate saturated. Good drainage becomes particularly important during wet periods.

Humidity

High humidity can slow evaporation while also encouraging fungal problems when air movement is poor.

Wind

Strong wind increases water loss and can dry small pots surprisingly quickly. It can also damage newly wired branches or destabilize recently repotted trees.

This is why the best bonsai location is not necessarily the sunniest location.

You are trying to create a healthy growing environment, not simply maximize sunlight.

Common Beginner Bonsai Mistakes

Watering on a Fixed Schedule

Watering every tree at exactly 7:00 AM regardless of soil moisture is convenient for the person, but not necessarily good for the trees.

Learn the condition of the substrate and respond to the tree.

Keeping Outdoor Bonsai Indoors

A bonsai is still a tree.

If the species requires strong outdoor light, placing it permanently inside your living room because it looks attractive on a table can eventually cause serious health problems.

Pruning Too Much

Beginners often become excited after discovering bonsai pruning and start cutting branches simply because they look too long.

Give yourself time to understand the tree before making major structural decisions.

Repotting Too Often

Repotting is beneficial when necessary, but it is also stressful for a tree.

If the roots and substrate are healthy, there may be no reason to disturb them.

Using Poorly Draining Soil

A container that remains saturated for too long can create serious root problems.

Good bonsai substrate should provide both moisture and air around the roots.

Buying a Tree Without Knowing the Species

Before purchasing a bonsai, identify what you are actually buying.

Knowing the species tells you much more about its light requirements, watering behavior, pruning response, repotting requirements, and suitability for your climate.

Trying to Make a Finished Bonsai Immediately

One of the most frustrating lessons for beginners is that bonsai development takes time.

A young tree may spend years being allowed to grow freely because the trunk needs to become thicker. Cutting everything back constantly may produce a small tree, but it can also prevent the development of the trunk and branch structure you ultimately want.

A Simple Bonsai Routine for Beginners

If you are just starting, your routine does not need to be complicated.

Every Day

• Look at each tree.
• Check which pots are drying.
• Inspect leaves and shoots.
• Look for insects or unusual damage.
• Check recently wired branches.
• Observe changes in growth.

Every Week

• Rotate trees when appropriate for your growing setup.
• Inspect the undersides of leaves.
• Check drainage and pot condition.
• Remove obvious weeds or unwanted growth.
• Review trees that have recently been pruned or repotted.

Periodically

• Evaluate branch structure.
• Review whether the tree needs pruning.
• Inspect roots when repotting is appropriate.
• Adjust fertilization according to growth and species.
• Clean and maintain your tools.

The more trees you maintain, the more useful this observation habit becomes.

What Tools Does a Beginner Actually Need?

You do not need an expensive collection of bonsai tools to start.

A basic kit can include:

• Sharp pruning scissors
• Branch cutters
• Wire cutters
• Root rake or chopstick
• Bonsai wire
• Watering can with a fine nozzle
• Suitable growing substrate
• Appropriate pots or training containers

Specialized tools become more useful as your trees become more advanced.

Do not spend a large amount of money on tools before you have learned how to use them properly.

A sharp, clean basic tool is more useful than an expensive tool that sits unused.

Should Beginners Start With an Expensive Bonsai?

Usually, no.

Your first tree should be something you can learn from without being terrified of making a mistake.

Affordable nursery stock, propagated material, cuttings, or young trees can be excellent learning material. You can make mistakes, observe how the tree responds, and gradually develop your skills.

This is particularly relevant when working with species that are readily available in the Philippines.

Instead of asking, “How much does this bonsai cost?” ask:

What can I learn from this tree?

A relatively inexpensive tree that teaches you pruning, wiring, watering, repotting, and recovery can be far more valuable to a beginner than an expensive tree that you are afraid to touch.

Bonsai Is a Long-Term Project

One of the biggest changes in mindset for a new bonsai enthusiast is learning to think in years rather than weeks.

A branch does not need to become perfect immediately.

A trunk does not need to reach its final thickness in one season.

A wound does not need to disappear overnight.

A young tree may spend years in development before it begins to resemble the final image you have in your head.

This is not a disadvantage. It is one of the reasons bonsai is so rewarding.

You are not simply buying a finished decoration. You are participating in the development of a living tree.

Frequently Asked Questions About Bonsai Basics

How often should I water my bonsai?

There is no universal watering schedule. Check the growing medium and water when the tree needs it, taking into account the species, pot, substrate, weather, sunlight, wind, and humidity.

Can I keep my bonsai indoors?

Some species can tolerate indoor conditions better than others, particularly certain tropical and subtropical plants. However, many traditional bonsai species require strong outdoor light and should not be permanently kept indoors.

How often should bonsai be repotted?

There is no single schedule that applies to every tree. Younger and faster-growing trees may require more frequent attention, while older established trees can often remain in the same container longer.

What is the best soil for bonsai?

There is no single best mixture for every species or climate. A good bonsai substrate should provide adequate drainage, moisture retention, and air around the roots, with the exact components adjusted to the tree and growing environment.

Can I make a bonsai from a regular tree?

Yes. Many woody plants can be trained as bonsai. The most suitable species generally have characteristics that allow them to develop convincing miniature proportions.

How long does it take to make a bonsai?

There is no fixed answer. Starting material, species, trunk development, growing conditions, age, and the desired level of refinement all affect the timeline.

A tree can become recognizable as a bonsai relatively quickly, but developing an exceptional trunk, mature branching, ramification, bark, and overall refinement can take many years.

What I Would Tell Someone Starting Bonsai Today

If somebody came to me today and said, “I want to start bonsai. What should I learn first?” I wouldn’t tell them to buy the most expensive tree or the most expensive tools.

I would tell them to get one healthy tree that is appropriate for their environment.

Then learn that tree.

Learn how quickly it dries.

Learn how it responds to sunlight.

Learn how it produces new growth.

Learn where it likes to grow.

Learn how it responds when you prune it.

Learn what happens after you repot it.

And most importantly, spend enough time looking at it that you begin to notice when something changes.

That’s where bonsai starts becoming more than simply keeping a small tree alive.

You begin developing a relationship with the tree.

You begin understanding its growth rather than simply controlling it.

And eventually, the techniques—pruning, wiring, repotting, propagation, styling—start making much more sense.

For me, that is what bonsai basics are really about.

Not making a tree look old.

Not creating a perfect silhouette.

Not buying the right pot.

It starts with something much simpler:

Learn to keep the tree healthy, learn to observe it, and then learn how to work with the way it wants to grow.

Sources and Further Reading

• Royal Horticultural Society — Bonsai: Growing Miniature Trees
• Bonsai Empire — Bonsai Tree Care and Maintenance
• Bonsai Empire — How to Grow a Bonsai Tree for Beginners