Azalea Bonsai (Growing Successful Trees Indoors)

  • By: Josh Koop
  • Date: July 10, 2022
  • Time to read: 6 min.
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Azalea bonsais are a common type of bonsai that has become really popular in recent years. People usually grow them outside. However, finding enough outdoor space for bonsai can be difficult for many. That is why a lot of people inquire, can you grow Azalea bonsai indoors? Today I’ll talk about this in detail.

The short answer is yes, you can grow Azalea bonsai indoors. However, in this scenario, you must give them extra care and attention for them to grow inside. In addition, you need to control every aspect of their development. Otherwise, they will not grow to your liking.

That being said, if you’re interested in growing them, you need to know about the entire process in detail to execute it properly. That’s why you should read through this whole article, as I’m about to explain it to you.

Can Azalea Bonsai Grow Indoors?

Yes, you can. Like all the other bonsai, you can cultivate this bonsai indoors. However, you need to provide effort and perfect conditions for them to grow.

As you might already know, people usually plant bonsai trees in pots outside . There they can get the necessary sunlight and warmth for them to grow. However, you can grow them inside.

For that to happen, you must choose a well-lighted place where you can also get sunlight for 2 or 3 hours a day. 

In addition to this, you need to put in a lot of hours taking care of the plant. You need proper watering, fertilizing, and pruning for them. You also need to be aware of all the aspects of the bonsai tree .

Otherwise, their development will not be as much as you might’ve expected. In the worst-case scenario, they might even die. So, to grow them inside, you must take proper care.

How to Grow Azalea Bonsai Indoors?

You can grow Azalea bonsai indoors by yourself. However, it needs more effort to grow than regular trees. As for Azalea, you can grow this bonsai tree with the clip and grow method. Here you trim the bud after a woody growth of the bonsai.

With this method, the whole process would be systematic and methodical. 

There are a few things you need to pay attention to before you grow bonsai . That’s why now I’ll talk about how to grow and take care of them indoors. 


Before everything, the placement of the bonsai is very important. It makes a huge difference where you are growing Azalea. If you’re growing them indoors, the place has to fulfill some conditions first. The place needs to be warm and not damp at all for growing these bonsais.

Azaleas thrive in the sun, although it’s best to give them some shade during the warmest time of the day in the summer. It should be shielded from rain and direct sunlight during flowering to ensure that the blossoms endure longer.

Azaleas that are healthy and mature may withstand some frost, but they should be sheltered from temperatures below 40° F (-5° C).


When you’re watering the bonsai , make sure you’re not watering it too much. That is because Azalea Bonsai trees should not be allowed to dry out, but they also do not want to be moist all of the time.

As a result, it’s critical to keep a close eye on the soil’s moisture. You can use a dry root ball and dip it in a water bowl until it is completely hydrated again.

Also, another thing you need to consider is their soil conditions. Azaleas require slightly acidic soil and should not be watered with harsh tap water. Because tap water could change the soil’s acidity level which would be bad for them.

For the azalea Bonsai, you may use rainwater, mix rain tap water, or filter tap water. They will not affect the soil condition. 


If you’re growing them indoors, you need to provide fertilizer to ensure optimum growth. However, don’t use normal fertilizer on them. They are special fertilizers for Azalea bonsais available in the market. They provide all the necessary nutrients that these plants need to grow.

That is why you should provide particular azalea or rhododendron fertilizers to feed azalea Bonsai during the growing season.

Weekly liquid azalea fertilizers and organic compounds to strew on the soil surface at longer intervals are available. Stop feeding or use half the regular dosage when the trees are in bloom.


You need to regularly prune azalea bonsais. Because the azalea is one of the very few basally dominating tree species. This means that the lower branches develop stronger than the upper branches, giving the shrub its natural structure.

As a result, the branches near the base should be pruned more aggressively than those at the top.

The Azalea can endure heavy pruning and even grow new shoots from branches that have no leaves. So, you can pull or pluck the wilting flowers and ovaries by hand shortly after blossoming.

This time of year is also ideal for all other pruning and trimming tasks. Because fresh flower buds will form in the summer for next year.

At any time of the year, you can remove unwanted sprouts from the trunk or the base of the branches. In the spring, extensive styling on raw material is common, and blooming is typically missed on purpose.

Because azalea wood is fragile, any kind of wiring and bending must be done with extreme caution. 


For any kind of bonsai , repotting is a necessary procedure to do regularly. This helps the azalea to get fresh nutritional soil. If you do this step, it will help the azalea to develop better. However, you need to be extremely careful while doing this procedure. 

You should re-pot the azalea every two years, either in the spring or after flowering. Because the roots are quite thin and tangled, you can easily damage them when you try to untangle them. It’s critical to utilize lime-free azalea soil.

You can use nice Pure Kanuma soil for your new soil. It provides all the necessary nutrient elements for the bonsai .


In the spring and summer, you must do the cutting to grow them. The success rate varies depending on the cultivar, although many common cultivars develop roots rapidly and readily.

Transparent coverings can help protect new cuttings from excessive evaporation during the hotter months of the year.

Pest And Disease Control

If you want a healthy azalea bonsai , you need to protect it from insects and prevent various diseases. However, not many pests attack azaleas. Low humidity, on the other hand, might encourage spider mites, which should be treated with a pesticide and increased humidity.

The vine weevil may consume the leaves, and their grubs can cause damage to the vine. You can eradicate beetles and their grubs using insecticides or nematodes.

When the soil of the azalea is overly damp and compacted, a fungus can cause root rot. There are fungicides that may be poured into the soil that are efficient against root damage.

Another disease to look out for is leaf gall. Wetness promotes the formation of leaf galls, which are particularly common on cultivars with red and purple blooms.

The easiest technique to deal with this illness is to remove galls as soon as they appear and to keep the azalea from becoming too wet.


As bonsais are growing in popularity , more and more people are interested in growing them by themselves. However, many people struggle to find a suitable outdoor space to grow them. That’s why people often ask, can you grow Azalea bonsai indoors? 

In this article, I’ve answered that question. Hope it will come in handy for you. Thanks for stopping by.