The koi pond in May

Along one side of the koi pond a gravel bog filter (below) is planted with tall, variegated sweetflag (Acorus calamus), yellow flag iris (Iris pseudacorus), pickerelweed (Pontederia cordata), and water lilies (Nymphaea). Pockets between boulders at the pond’s edge are planted with Japanese irises (Iris ensata), though a few clumps have been infiltrated by the…

Yellow flag

In May frogs bellow at each other beneath the yellow blooms and eighteen inch tall foliage of Yellow Flag iris (Iris pseudoacorus, below). Hungry koi and goldfish lazily swim through the shallow water searching for a meal, and many thousands of tadpoles feed on bits of algae that cling to stones at the pond’s edge. …