Iris minutoaurea is a small, beardless, rhizomatous perennial iris from eastern Asia with grassy leaves and a single bright yellow flower in spring. It grows best in well-drained, humus-rich soil in full sun or part shade, and is considered difficult to grow outside Japan.
Family
Iridaceae (Iris family)
Grows as
Perennial
Light
Full sun, Part shade
Water
Keep well drained and avoid waterlogging; it prefers rock gardens and scree-like slopes over wet ground.
Soil
Humus-rich, well-drained, neutral to acidic soil.
Temperature
Hardy to about -15 to -20 °C; has survived as low as -29 °C in France. Struggles to flower in areas with cool summers.
How easy
Hard
Native range
NE. China (Liaoning) to Korea, Japan
Climate
temperate
About
Iris minutoaurea is a beardless iris in the genus Iris, in the subgenus Limniris and in the series Chinenses of the genus. It is a rhizomatous herbaceous perennial of eastern Asia, native to China and Korea.
It has been naturalized in Japan. It has long grassy-like leaves, short stem and bright yellow or pale yellow flowers. It is cultivated as an ornamental plant in temperate regions.
How to grow it
Iris minutoaurea has been cultivated in UK, but it is rare, and considered difficult to grow. It is also rare in Europe. It has also, been cultivated in the US but is thought difficult to get it to bloom. It is much easier to grow in Japan, where it has been cultivated for many centuries.
It is hardy to Zone H2 (which means hardy to −15 to −20 °C (5 to −4 °F) ), in Europe. Although, it has survived in temperatures as low as −29 °C in France. It will be difficult to get to flower in areas of cool summers.
Where it grows
Iris minutoaurea is native to the temperate regions of eastern Asia.
Text excerpted from the Wikipedia article Iris minutoaurea by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.