Flowers in Wakasakanai Park
The blooming season begins between mid-May and mid-June with a perennial, yellow-flowering species of cinquefoil (kijimushiro; Potentilla fragarioides var. major.) The small flowers (2 cm in diameter) have five rounded petals and bloom in patches close to the ground. They are similar to hamanigana (Ixeris repens) flowers in size, height, and color, but hamanigana blooms have slender, pointed petals and do not come into season until late June.
The beach rose (hamanasu; Rosa rugosa) has the longest season (late June to late August) and produces large flowers (up to 10 cm in diameter), usually dark pink. The shrub grows on sand dunes and in coastal areas of northeastern Japan, China, Korea, and southeastern Siberia.
Blooms of lily-like flowers, native to Japan, China, and Russia, rise tall through the grass in July. These are the yellow-flowering daylily Ezo kanzo (Hemerocallis esculenta) and the orange Siberian lily (Ezo sukashiyuri; Lilium pensylvanicum).
In late July, a variety of fringed pink (Ezo kawara nadeshiko; Dianthus superbus L. var. superbus) and a coastal variety of morning glory (hamahirugao; Calystegia soldanella) begin to flower, until the season draws to a close in August.