Eugenia burning

[Stubby]

I just got a new Eugenia bonsai on Easter Monday. I put it in a new pot, watered it in and put it in my front west facing window. The leaves on the top are burning up and I am assuming it was too much sun too fast? It receives full sunlight from about two in the afternoon onwards. I figured it’s still in shock as well so I have been leaving it. I gave it a submersion watering.

 

[Stubby]

Burning might heating weird, crisping.

 

[Shibui]

Burnt leaves means dehydration but that can be caused by direct lack of water in the pot or by too much sun on leaves not accustomed to direct sun. Too much water can also cause leaf damage but would normally take several months to happen.
If you are confident the soil has stayed damp that leaves sunburn as the logical answer. Dried leaves are more likely to be on the side closer to the window.
Sun through glass seems to be amplified so will be even stronger than the sun outside. Have you thought about what will happen later in Summer when western sun is even stronger?
Good news is Eugenia are tough so almost certain to come through this. We would normally let the leaves adjust to stronger sun bit by bit over several weeks but I guess it's too late for that now. New leaves that open into that sun strength should be hardy to it.

Indoor heating could be responsible but dried leaves will tend to be all around the tree. Indoor air tends to be very low humidity which can also be a problem for plants. It is just one of the reasons that many plants do not do well indoors.
Humidity can sometimes be modified by placing the pot above a tray filled with water. Pots can sit on a tray above or fill the water tray with stones and sit the pot on the stones so it is just above water level. Top up humidity tray every time you water the pot.

Another thought: Is it possible the tree may have got cold? That can happen close to a glass window when temps drop low enough outside but I assume your indoor heating should be keeping the entire room warm?

 

[Stubby]

I don’t think it got too cold. I have a Chinese elm right beside it which if fine and the weather had not been too cold anyway. It was in the greenhouse and I brought it home and it went right there and we happened to get several sunny days. My question so guess is what I should do now? Ride it out? My bonsais have tended to do very well in that spot. Thank you for reply.

 

[Shibui]

Eugenia are way more sensitive to cold than Chinese elm which is why I asked. If you are happy that's not likely we are back to sunburn.
I'd be inclined to ride it out. Nothing you can do to reverse already damaged leaves, but, as mentioned, the new ones should be able to cope with the extra sun they start growing in.