Gnome what is your take on this scenario, the back in the house part I mean...I have indeed learned about bonsai is that not every one agrees on a standard set of rules, and then even these change depending on the tree type.
It is definitely true that different species require different care and it is certainly true that you can ask different people and get different answers. My position is that there are no such things as indoor trees. Yes some species can be grown indoors if given the proper care but that means that more is required from the grower and, IMO, also allows for a greater chance of failure especially where novices are concerned. If given the option of inside or outside I will always choose outside unless there are compelling reasons to do otherwise.
Most trees will be stronger and healthier outside. I keep a few species of tropicals inside over the winter but I have no choice here. I get them outside as soon as the weather warms up and they really do much better outside. But your window is a better location than my basement (with fluorescent lighting) so that is not really a fair comparison.
In regards to why the tree is back inside the house? Simple answer I am scared that it may die.
With proper care your tree will do fine outside.
It had been outside the first two days but then I read about not having the bonsai in direct sunslight cuase it could burn, Puerto Rico's direct sunlight is pretty hot
Actually MyBonsaiBuddy wrote:
Since it is 'naked', I would not give it the full direct sunlight. The morning sun is good but the tree can get sunburned in full sun without its foliage to protect it...As the foliage increases, increase the amount of sun
See the difference? I take it that you have only two choices, inside or outside on the balcony. You earlier wrote that your balcony faces east and only gets two hours of direct sunlight a day and this, presumably, when the air is cooler.
In my location I would not hesitate to leave it outside under those circumstances. Actually I seek an area that gets full sun, or as close to it as I can manage but my climate is much different than yours. Remember these are only my opinions and, as you have found, others may disagree.
In reviewing this thread I don't see where anyone gave you any specific tips on watering. What I always tell people is that proper watering is more about frequency than quantity. Always water thoroughly, until the entire soil mass is saturated. This may take more than one application depending on the condition of the soil. The key then is not to water again until the tree requires it, that is where there can be room for confusion.
If your soil is free draining, which it probably is, you will probably reach a point where you are watering every day. But, as noted, without foliage the tree will require watering less frequently at first.
Earlier you wrote:
This is my sad looking elm:
Not at all, that is a fine looking Elm it is simply dormant and will soon leaf out as you are now seeing. You made an excellent choice. Please make sure to stop back and post pictures of it when it is in full leaf.