I have two Queen Palms within eight feet of each other one is dark green the other is a pale green color with the new growth having a deformed or stunted look.I read this a manganese deffecency problem my soil ph for the sick palm is 7.1 and for the good colored palm is 6.5.

So do I add sulfur or compost I'm concerned if I don't do something very soon my sick tree will die.Do I have time for the compost to break down?

If I add about a half a pound of aluminim sulfate how well do I need to water it in (drench) or (water sprinkler) so it does not burn my grass?Temps here today 83 with rain expected