How to Fertilize desert agave?
Very dilute low-nitrogen succulent feed monthly in warm growth

desert agave · Agave deserti
Grow under glass in cactus compost, water sparingly when in growth, but keep dry over winter. Apply a dilute, liquid fertiliser 3 or 4 times during the growing season. Outdoors plants can be grown in a raised desert bed but must be given complete protection from winter wet. See hardy cacti and succulent cultivation for further advice
Very dilute low-nitrogen succulent feed monthly in warm growth