I am new to organic gardening. We had landscaping put in this past spring. One of the Nellie Stevens Hollys was not recieving any water from the sprinklers. It died and was replaced. The 2nd is having the same trouble. the sprinklers are now corrected but it still looks dead. The landscaping people who planted it suggested Super Thrive. I would like to go organic. What do you suggest to bring this bush back?

Let water drip on the base of the shrub--all day and all night.

Pat Akin