When I bought my seiryu it was a light green color, it has been exposed to the sun for about 6 weeks now and the leaves turning darker, with a brown/red tint on the top leaves that are most exposed to the sun.

It gets sun from morning to about 5pm.

I wanted to know it is normal for a seiryu in the sun to go through this, or will it be burning up for me later on? At the nursery, under a shade cloth, some seiryu have orange tint on the tip growth and it looks spectacular.