Euphorbia spannringii

Aligned with a tropical wet-dry seasonal cycle, this species wakes up during the warm spring and summer months to produce its delicate foliage and flowers, storing vital moisture in its compact caudex. In cultivation, it requires an extremely porous, fast-draining mineral substrate (such as a heavy mix of pumice, lava rock, and coarse grit) to prevent its sensitive root system from holding stagnant moisture. It thrives in bright, intense light—such as the filtered diffusion of a shade house—to maintain its tight, graphic silhouette, and it must be kept nearly bone-dry during a strict winter dormancy period to avoid fatal rot.