In February and March, I bought Junipers, a Maple, a Hinoki and a Black Pine, from Bonsai Outlet. I subscribed to, and watched several lessons. I repotted them in March and April, using the suggested mixture of Akadema, lava and pumice. I water them, almost daily. In Texas, it is not as warm as usual, but it's still warm. Most days the "soil" feels dry. So, I water them. I use bonsai fertilizer every two weeks. With the exception of the Pine, they all look like crap and look like they are dying. I'm extremely frustrated, since these are supposed to hearty bonsai and easy for novices. I need help!

Put them all in a shaded place and stop fertilize.

And then go talk to experienced bonsai people in your local area. Depending on where you are in Texas some of the species may not be suitable for you.

I'm in North Central Texas, an hour from Oklahoma. Not as dry as the Rio Grande Valley, and not as humid as San Antonio and Houston.

I am in Sweden and have no idea about local Texas climate. Go look for experienced growers locally and see wich species they grow succcessfuly and how they do it.

Good luck.

Okay. You're in Sweden. In this part of Texas, it is fairly dry, but not desert dry. We have lots of tree cover in the area. So, while it can reach over 100 Farenheit, it has only just begun to get in the 90s. We've had a blessedly cool Spring and it is just now getting hot. So, the temps ranged from the 60s to the 80s, until just recently.
My trees were in places where they would get some sun, but not all day long. Does this help other than for me to go to someone local?
Thanks

Ahh, ok. Dry air can be a problem. Strong sun after repotting as well.

Next time, grow the trees one full season without repotting. Then there is one less possible reason to rule out.

I am still not totally sure that all the species can be grown in your area.

Same advice as before aply. Put them in full shade, stop fertilize and focus on watering. And of course reach out to someone experienced in your area.

I have some follow-up questions. I am really confused about a few things. I've ordered these trees from Bonsai outlet. So, they come in the mail and are in actual dirt/soil. Of course, I don't know the mixture. But, based on the classes and videos, on this site, those trees should be in the 1/3, 1/3, 1/3 mix of the Akadema, lava and pumice, as I mentioned, before. So, why is it that they can stay in the grow pots, in that original soil, for a season, if they're supposed to be in the inorganic mix?
Please keep in mind, that I am not questioning your knowledge or professionalism. I'm just trying to learn.
I have sought out a local club. I'll go to the next meeting and take my trees, or take them to a bonsai nursery.

Thank you, for your continued input.

Ask 10 bonsai growers about the best soil for bonsai and you get at least 12 different answers. We all struggle to find the best soil to fit our growing conditions, species and watering routines.

The soil your trees came in is the very same soil it was produced in. If it is good for comercial production it is good for a few years for a beginner.

Beginners urgently repotting trees because they are in "wrong" soil seldom ends up well. Repotting is stressful for the tree and can kill them If performed wrong.

As a beginner it is better to learn taking care of the trees in the soil they came in. And at a later stage and at the right time of the year repot under supervision of an experienced bonsai artist.

Are you part of the Bonsai Empire team, or a contributor? I ask, because Oskar, one of the main teachers in this group, is the one who said these trees were better off in the inorganic mix. So, no, it's not asking 10 different experts and getting 12 answers. As a mentioned, I have taken some of the classes, and I directly asked him about soil and when to repot. And, the Juniper is supposed to be an easy tree. I also watched several videos on repotting, soil mix, etc. I'm a periodontist. I don't do anything without plenty of research. Your last couple of comments are quite arrogant and unhelpful. You don't need to respond, anymore. I won't read your comments. I have enough stress in my life, without getting crap from a forum member, when I'm asking for help.

If you search history in the Empire you will find this topic over and over. Most of the people with years of experience say something like the standard mix is abc but what I do is xyz.

I change every year, depending on market prices, etc. One reason for difference is local climate, days of sun, days of rain, etc.

The best thing to do is find a local club and see what the members use, where they buy it, when they repot, and in general be an apprentice.