Agave asperrima

The rough century plant is well-suited for dry conditions. Water it only when the soil is mostly dry, making sure there is good drainage. Adjust your watering routine according to the seasons: increase watering during the summer, and reduce it in the fall. In the winter, when the plant is dormant and temperatures are around 10℃ (50℉), stop watering and keep the plant warm. Resume watering in the spring once temperatures rise above 20℃ (68℉).

Native to arid regions, Rough century plant flourishes in full sun; its native habitat is marked by strong sunlight and very little shade. It also tolerates partial sun, providing some adaptability in its growth.

The rough century plant does best in warm conditions and needs higher temperatures during the growing season to support its growth and metabolic processes. It prefers plenty of sunlight, suitable moisture levels, and good airflow. However, it is vulnerable to harm from very low temperatures and from overwatering. It is also important to avoid extremes—excessive heat and overly dry conditions.

This plant prefers dry conditions, so don't mist it. However, watering it less often can also thrive in higher humidity.

For the rough century plant, use light amounts of fertilizer once or twice a year during the growing season. Do not fertilize in winter or in summer when the plant is dormant. Use less fertilizer for plants that have been repotted, and wait a couple of months after repotting before applying fertilizer. Fertilizing helps maintain healthy growth and encourages blooms.

To properly prune a rough century plant, begin in early spring by using clean tools to remove any dead or damaged leaves, as well as spent flower stalks. This will help improve both the plant's growth and its appearance. Be sure to wear protective gear, as the plant has sharp spines. Proper pruning can also help reduce pest problems. For detailed pruning techniques, consult Extension publications.