Hey guys I have a fence row of holly and been using triple 10 around the base in the fall and again early spring. Soaker hose around them all summer and they grew really well this year I mean better this year then in the last 6 years due to keeping them watered. I mean watered, 4 hours a week with soaker hose. Is there anything better I can use then triple 10 to make there puppies take off? I want to change the height to 6 feet and they aren't that far away from that now, some just 18" but others need a good 4 foot of growth.