Building a Rill

I filled a small trench that yielded fresh water. Built as a serpentine and with a sharp corner. A small waterfall sang a melodious sound, A lulled sleepiness induced when it hit the ground. On each side of the rill, fair, watery plants grew, A great choice of Algae. Ferns, a lobelia blue. Fitful arrowheads and water lilies adorn. Cardinals and others begin their flight in the morn. Already prepared was a slightly large pond, Well covered with cement mixed with soil beyond, I planted some hyacinths and water lilies. Soon, dragonflies waltz around like sillies. My final job was planting a dwarf willow. Don't be surprised, robins made it their pillow.