I recently planted an amber glow redwood. The needles appear to be drying up. We did have a frost about 4 days after it was planted, but it had minimal impact on several other new trees I planted. I’ve planted 6-7 new trees in the last 2 years and had great success with them. This is my first redwood and just can’t figure out if I’ve done something wrong. Thanks in advance to any help/advice anyone may have.