Gentiana pannonica aka Hungarian Gentian

Gentiana pannonica is a perennial in the gentian family, Gentianaceae. Its common name is round-petalled gentian. It comes from central Europe and grows in temperate regions. Records place it in Austria, Switzerland, Germany, and the Czech Republic. Its range also includes Croatia, Italy, and Slovenia. It is not native to Britain or Ireland. Plants reach about 2 feet [0.6 metres] tall.

In the wild, it grows in meadows, pastures, and forests. It also grows on scree and grassy floors of alpine corries. Some plants grow among dwarf pines. Its habitats include both limestone and acidic rock. This range of sites shows some tolerance for different soils. Garden uses include planted beds and sunny woodland edges. These settings suit a perennial that needs light and moist ground.

Flowers appear from July to August. Each flower has both male and female organs. Bumblebees and butterflies carry pollen between the flowers. The supplied species evidence gives no detailed flower colour or shape. It also gives no account of leaves or fruit. Those gaps limit the traits available for identifying this plant. The recorded flowering season offers a useful guide for garden planning.

Grow it in moist soil that lets excess water drain. Sandy soil, loam, and clay can all suit it. Soil must be deep enough to hold its roots. It tolerates mildly acidic, neutral, and mildly alkaline ground. In gardens, it prefers neutral to slightly acidic conditions. It can grow in sun or light woodland shade. PFAF lists USDA hardiness zones 4–8 for this species. Sow fresh seed in a cold frame with good light. Late winter or early spring sowing is another option. A cold period helps seed germinate. Stored seed loses viability and may sprout slowly or unevenly.

The root sometimes goes into the production of gentian bitters. PFAF gives it a low food-use rating of one out of five. It also names this species as a source of medicinal gentian root. Broader treatment claims on that page draw on another species. They do not establish the same effects for this plant. PFAF reports no known hazards, but this is not proof of safety. It lists no other uses and records no weed potential.