Diagnosing Foxtail Palm Yellowing and Browning

Why Is One Foxtail Palm Declining While Others Thrive?

Three foxtails planted together; two grow fast, but the smallest suddenly shows yellow/brown new fronds and a stunted, brown-tipped spear. All get palm food and extra magnesium.

Needed Information

Nick requests details to diagnose: planting date, method, soil type, whether planted at correct depth, and differences among the three sites. Without this, causes could range from nutrient deficiency to planting depth error or cold damage.