MY CHURCH HIRED A LOCAL LANDSCAPE COMPANY TO REDO OUR FLOWER BEDS LAST YEAR. WE APPARENTLY HAVE A DRAINAGE ISSUE FROM RAIN WATER FALLING OFF BUILDING. OUR BEDS RUN ALONG THE CHURCH CONCRETE WALKWAY. 170 FEET LONG AND TWO FEET WIDE. HE HAS REPLANTED SOME KNOCKOUT ROSES IN THIS AREA BUT SAYS HE NEEDS TO PLANT SOMETHING THAT WILL ABSORB THE EXTRA WATER WHEN IT RAINS. WHAT DO YOU SUGGEST? LOOKING FOR PLANTS THAT COME BACK EVERY YEAR.