Elsholtzia splendens aka Haizhou Elsholtzia

Elsholtzia splendens belongs to the mint family, Lamiaceae. Its common name is shiny elsholtzia. It comes from temperate parts of China and Korea. The Chinese range includes several eastern and central provinces. Plants For A Future records it in grassy mountain sites in Korea. In China, it grows on hills and in grassy places. Chinese records reach elevations of 984 feet [300 metres]. It is not native to Britain or Ireland.

Plants For A Future gives a height of 1.3 feet [0.4 metres]. The sources disagree about how long the plant lives. Plants For A Future calls it an annual. Kew's checklist instead records it as a perennial. This leaves its life cycle unclear in the supplied records. Neither source gives a mature width. The evidence also lacks species-level details about leaves, stems, flowers, and fruit. Each flower has both male and female organs. Insects pollinate the flowers.

For garden use, Plants For A Future describes it as easy to grow. It accepts sandy soil, loam, and clay. It also tolerates mildly acid, neutral, and mildly alkaline soil. Choose a sunny site, since that source rules out shade. The plant prefers moist ground. These needs suit a planted bed with sun and moisture. The records give no watering schedule or drought tolerance. They also supply no hardiness zone or frost limit.

Plants For A Future lists cultivated beds as a garden setting. It recommends sowing seed where plants will grow in late spring. The evidence gives no bloom season or time to maturity. It does not describe pruning needs, pests, or diseases. That source does not flag the species as weedy. This is a source assessment, not proof about every growing region. No further landscape uses appear in the supplied species records.

Plants For A Future lists no known food uses. It also reports no known hazards, but this does not establish safety. The whole plant contains essential oil, including monoterpenes and sesquiterpenes. The source records Korean medicinal use for headaches and fever. It also lists use for diarrhoea and oedema. These are reported uses, not evidence of treatment benefits. The supplied material provides no basis for eating the plant or using it as medicine.