Hi all! I have a couple endless summer hydrangeas in this raised bed. I am concerned that they are not fully blooming. As you can see some are mostly filled out while others are filling out more like lace hydrangeas. I bought all 3 from the same place on the same day so I am pretty sure they are all the same plant. Could it be that they aren’t getting enough sun? I don’t think it is a hydration issue. Thanks!