A perennial of the Campanulaceae family, Lobelia oligophylla is native to the Andes of South America, where it grows in high-altitude grasslands and humid screes, generally between 3,000 and 4,500 meters. It is part of a group of Andean lobelias adapted to the harsh conditions of the high plateaus, alternating between nighttime frost and intense sunlight.
It forms a dense, creeping, and compact cushion, not exceeding 3 to 5 cm in height. The leaves are small, oval to elliptical, fleshy, with a shiny green color and slight purplish hues on the underside and sometimes on the edges. Their glossy texture and very tight arrangement give the tuft an almost succulent appearance, remarkably well adapted to alpine constraints.
The flowers, borne individually on very short peduncles barely protruding above the foliage, have five narrow lobes of a pale lilac-pink to mauve-pink, with a contrasting yellow-green center and darker streaks that guide pollinators. In its natural habitat, its flowering extends from the austral summer, from December to February. In cultivation under temperate climates, it generally blooms from June to August.
It requires well-drained soil, fresh without excess stagnant moisture, in a sunny to slightly shaded exposure. It is suitable for cool rock gardens and alpine troughs, provided it is protected from prolonged winter moisture.