Ventilation

Good ventilation is essential to Haworthias and particularly overnight. This is because Haworthias collect carbon dioxide for photosynthesis at night, and in a still air, the collection become less efficient after the ambient carbon dioxide is consumed. In an enclosed growing area (for example indoor), fans can be used to keep the air moving.

Put the fans in oscillating mode so that the growing medium won’t dry out too fast.Atelier Sakura @ Palo Alto, CA
Put the fans in oscillating mode so that the growing medium won’t dry out too fast.