I recently visited Holland and bought over two hundred bulbs which I will be planting in a large bed I have made. I am new to gardening and wanted to know if I can plant a groundcover of Bellflower Clips - (Campanula Carpatica) over the bulbs? This would give the area some interest after the spring blooms of tulips have gone, but I am concerned that the tulips might have some problem growing up through the groundcover. Thanks for any help.
Frank