Spittlebugs on Pennisetum
I planted 8 pennisetum at the park near my house a week and a half ago. I've watered them very good, every other day but they're still turning brown. They were all root bound and ALL had evidence of spittlebugs at the base.
I'm not sure what could be causing the browning? Water, spittlebugs or root issues?
I just replaced all of these because the ones I planted last year did not come back at all. Everything else (miscanthus, knockout roses, black eyed susans and a few others) thrived with the same amount of water, sunlight, soil, etc.