Gentiana acaulis

This alpine species is a stemless gentian valued for intense blue, trumpet‑shaped flowers that seem to sit on the foliage. It forms low, evergreen mats that suit troughs and rock gardens in cool‑summer climates. Plants flower from late spring to early summer and prefer moist, gritty soil that drains well. Performance drops where summers are hot and humid, so afternoon shade helps in the South. Use where the soil stays evenly moist but not waterlogged.