I planted out my 3-year old Sabal riverside seedling this past Sept.  It had been a pretty fast grower as far as Sabals go until this calendar year.  We hit a low temp of 20° this past January, but I covered him up and saw no foliage damage whatsoever until mid-March when I noticed the spear had turned brown and it pulled.  I treated it with some hydrogen peroxide.  There must have been some damage to the meristem because I now see a spear coming out the side.  It did not show any growth or any