Just getting into planting OG, and am so excited. Last year bought some miscanthus,adagio and morning light. I just loved them and was very sad when 2 of tem didn't come back this year. Oh well...this year I bought calamagrostis "Karl Forster" and pennisetum "hameln".Out of 10 that I bought and planted about 2 weeks ago,9 of then are developing brown tips. Not sure what to make ot this. Is this something I should worryabout? I planted in a sunny site right away,cut the root ball,watered well,what gives?