One of the largest-flowered and robust rainlilies, the aptly named Habranthus robustus hails from Argentina and Brazil. Unlike rainlilies in the Zephyranthes genus, its flowers face at an angle to the stem giving them the look of a multi-flowered miniature amaryllis. Each trumpet flower is 3"-4" long and as wide at the flared petal tips. It's common for the Argentine Rainlily to repeat bloom throughout the warm season. In warm climates, the nicely arching flat leaves remain evergreen. It's a fast multiplier by both fresh seeds and bulb off-sets. Although it can survive some drought, it performs best with adequate, even substantial, rain throughout its growing season and revels in the steamy heat of a Deep South summer.

A limiting factor to cold hardiness is that the bulbs lie very close to the soil surface, often having parts of the bulbs above the soil lne. Some gardeners have reported success north of zone 8a by heavily mulching the bulbs for winter. Typically a pass-along plant in areas where it grows, it's also available through good on-line vendors.

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