Help my Incrediballs please!!
I have 4 Incrediballs, all 2 years old. They've grown like crazy & the leaves & stems look good. They're flowering we'll, BUT the blooms go from pale green as they're emerging, straight to brown & dead looking. They're planted in full sun, one gets about 6 hours, the others get 10-12 hours of sun per day. They get at least 2" of water per week, and don't look wilted. The blooms would be beautiful if they were white! I fertilize with Miracle Grow every 10 days. is that too much? Are they just getting too much sun? Any thoughts appreciated! Thanks in advance.