Calanthe spans a vast and varied genus of 150 to 200 species, stretching from the cool forests of Japan to the tropical hills of southeast Asia. The name alone is worth knowing: kalos, beautiful, and anthos, flower, from the Greek, and anyone who has watched a Calanthe send up its slender flower spikes above crinkled, paddle-shaped leaves in the depths of winter understands exactly why the Greeks would name things this way. Most species are terrestrial, rooting into rich leafy soils in dappled or full shade, though a few choose the easier life of epiphytes, gripping bark in tropical forest canopies. The deciduous types carry prominent pseudobulbs that store reserves through dormancy, flowering from the leafless base before new growth resumes, a reminder that the quietest seasons often hold the most promise.

In gardens, most Calanthes find their footing in zones 7 to 9, though some will endure zone 6 winters with a protective mulch. Give them evenly moist, humus-rich, well-drained soil and the kind of dim corner that ferns enjoy, and they will settle in quietly. Root rot is the main risk, arriving when drainage is poor or enthusiasm with the watering can outpaces the plant's actual needs. As houseplants, they thrive in bright indirect light, resenting both the midday glare that fades their leaf color and the dry air of most heated rooms. The flowers, delicate and often elaborately two-toned, appear in winter when almost nothing else is blooming, making Calanthe one of the genuinely surprising pleasures of gardening on the cool shady margin.