Ponytail palm can be grown as an outdoor plant only in USDA Zones 10 and 11, where it prefers a sandy soil in a full-sun location. When grown outdoors, it is best planted in a cactus/succulent potting mix and placed in the sunniest spot you can find; in the right location, it is largely trouble-free, provided it gets a modest amount of water at regular intervals.
As an indoor plant, the ponytail is basically a “plant it and forget it” kind of plant, providing it has enough light to thrive and somewhat steady water throughout the growing season. Keep in mind, though, that the ponytail palm is an extremely slow-growing plant, so don’t expect your desktop plant to transform into a corner specimen in one or two growing seasons.
Ponytail palms like full sun or bright indirect light. When grown as an indoor plant,
This plant is native to semi-desert areas of Central America, and when planted outdoors it does best in relatively sandy but organically rich soil. As in indoor plant, it does well in a cactus/succulent potting mix augmented with peat to improve its richness.
For potted indoor plants, water a ponytail palm during the growing season every seven to 14 days. The bulbous stem stores water, so be careful not to overwater it. During the winter season, cut back watering to monthly.