That's a shame that there's so little information in Spanish! I'm sorry I don't speak it to be more helpful. There should be many begonias that would do very well for you, but tuberous ones probably won't. The rhizomatous ones are different from tuberous, and should do quite well. Sometimes they will go semi-dormant in the winter for me at least--maybe not for you. The Rex begonias, a separate division of rhizomatous begonias, often go semi-dormant in the winter here in z9, but again, maybe not for you. And there are lots more, many tropical ones that would do very well. I'm not sure about your climate, though; how humid are you? A dry heat would be harder than a humid one. But I'm sure there are begonias that would like it, I just don't grow them because it is very humid here. Welcome to the forum! Hope others can help you more!

First of all, thanks a lot for your attention.

Well, I would want to ask a question, until now i have used normal substratum, for garden; should I use a special one? Do begonias need substrat acidophilus?

Thank you.

I grow a lot of my begonias just in the ground, with an organic mulch (leaves, grass clippings, pine needles--whatever I can get) and I grow a lot in pots too. In the pots I use various potting mixes that don't include soil, as that can interfere with drainage given my heavy clay. I didn't mention cane begonias, called 'angel wings' sometimes, as good ones for you. You might me interested in checking the website of the American Begonia Society, as there is lots of information and many pictures there.

THanks a lot, I already knew the American Begonia Society, but thanks anyway!