I planted 3, 1 gal. 8" tall Pie Crust Crotons out in late June. The plants are almost 3' tall now and still pushing new growth. These look to be a very fast grower. I want to plant a few Crotons along the 6' wood fence that backs up to my soon to be Croton Garden. Will Pie Crust fit the need for blocking the fence fast? The area gets sun most of the day now.