How to Fertilize small-flowered agave?
Very dilute low nitrogen feed during warm growth only

small-flowered agave · Agave parviflora
Grow under glass in a standard cactus compost, in bright, filtered light. When in growth water moderately and feed every two or three weeks with a balanced liquid feed. Keep almost dry in the winter. See houseplant cacti and succulent cultivation for further information
Very dilute low nitrogen feed during warm growth only