Agave titanota black and blue
Soil: It needs a very well-drained, soil.
Repotting: Use pot with good drainage.
Watering: Water regularly during the growing season from spring to autumn. In winter watering this plant can be done once every 1-2 months, there is no need to mist the leaves. Plants cultivated outdoors are drought tolerant and takes blasting heat and full sun.
Exposure: It do well in full sun or a lightly shaded area.
Hardiness: Agave titanota is hardy to -3° C, particularly when dry but it is best to avoid freezing temperatures.
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz