Forget everything you know about Oxalis. Oxalis gigantea breaks the mold entirely. Native to the arid coastal regions of northern Chile, this is a true shrub—woody, branching, and capable of reaching several feet tall over time. Unlike its soft, clover-leaved cousins, gigantea grows slowly into a gnarled, bonsai-like form with thick stems and delicate foliage that emerges seasonally.
During its active growth period (typically late winter to spring), it produces sprays of yellow to apricot-colored, tubular flowers that contrast beautifully against its fine, trifoliate leaves. The blooms are pollinator magnets in habitat and lend a soft brightness to the plant’s rugged structure. As summer approaches, Oxalis gigantea may drop its leaves and enter dormancy, resting through the hottest, driest months.
This is a desert-adapted species that appreciates full sun, excellent drainage, and a dry summer rest. It thrives in a gritty, mineral-rich soil blend—think cactus mix with added pumice or perlite. Water generously during its growth cycle, but cut back sharply as dormancy begins. Indoors, it does best in a sunny window or under strong grow lights.
