Hieronymiella is a little-known genus in the family Amaryllidaceae from semi-arid and arid regions on the eastern side of the Andes of northwestern Argentina and occasionally in southern Bolivia. The taxonomic treatment of this genus can be found on this PBS thread. The following cultivation information was provided by Mark Wilcox on the PBS list: Germinated seeds were planted in a 4-inch pot of Schultz's Professional Potting Soil Plus. The plants were grown under two 40 watt fluorescent bulbs for 16 hours each day. Average summer temperatures of ~75-80F (23-27C) and winter temperatures of ~65-73 (18-22C). Fertilization was performed for most watering from the bottom with a solution of 1/4 teaspoon of MiracleGro for Roses (18-24-16) to one gallon of water. Allow the soil to dry out between watering.
Hieronymiella aurea is native to Salta Province, Argentina.
Hieronymiella clidanthoides is native to Catamarca Province, Argentina.