名媛直播

So here's the story. I live in the PNW, or Northern Hemisphere. I live in a PLant Hardiness Zone 6b, and the surrounding area is 4-7. Cherry Blossoms grow in zones 5-8. And they have them growing in the coastal cities, I am just on the other side of the Cascade mountain range.

I planted these inside by seed. (I know, next year everything will be planted outside). It is in a biodegradable organic pot that holds a lot of moisture. It is planted in substrate with a little extra lava rock added in. I planted them in Feb. Kept them inside under a grow light until May. Feb thru may, our low was 15 degrees F, or -10 C, our high so far in June was 95 F or 35 C. I moved them outside where they get about 5-7 hours of direct sunlight before they are shaded.

I left a 2nd pot outside in a different location with no shade, and it died, the leaves turned yellowish white. So I assumed that it had received too much direct light. (9-10 hours).

So I am guessing that they need some shade, or or just a lot more water than I gave them. We have had a few rainfalls, so they had some rain water. The guide here says they need a lot of water. My question is, if I had given them more water, would the sunlight have not been a factor? Or do some trees need to be protected from too much sunlight? Or is this a case of an indoor grown seedlings not building up frost/heat hardiness because indoors, and then when put outside, not being able to cope?

(I am still very new to bonsai, I have grown about 15 different species from seed, but just started this year, and have made a lot of mistakes. Please feel free to share any information, I don't care about being wrong, I want to learn.)

The 1st photo is the one that was protected from the sunlight. The 2nd and 3rd is the one that was not (same photo, but it's dark out, wanted to share both just in case)

Thanks for reading!

The white / berge color on the leaves, is indeed sunburn.
The browning might be from underwatering, then leaves tips go crispy.
If there indoor, and expose them to outside sun/conditions. Then you need to harden them off, important!.
More about hardening off:
So if you gradually expose you plant to more sun, new leaves will grow in, that can handly the sun. Old leaves will fall off later.