Chinese indigo; summer wisteria
A deciduous shrub (Indigofera decora) with pink or white flowers, native to China and Japan. Often called 'summer wisteria' for its wisteria-like blooms.
When I planted a summer wisteria in the garden, it bloomed beautifully in summer.
Standard katakana spelling for this plant name.
Kanji spelling is rare; the plant name is usually written in katakana.
From 庭 (garden) + 藤 (wisteria), referring to its wisteria-like flowers and common garden use.