green giant

I had multiple 7-8' green giants planted 3 weeks ago. A few of them have some die off on some branches and browning in spots on the leaves/needles (pics). I have upped their watering as a result. Is this normal new planting stress that will abate or cause for concern? Some of the trees have no...

I’m looking for complete privacy and trying to get green giants as tall as possible. I have plenty of space for staggered 2 rows but I’ve read a wide range of advice on the spacing between the front and back row ( 3-5 ft) and space between trees (5-12ft). These ranges are too broad and I don’t...