Advice is useless unless the type of Yucca and the plant's needs are known.

There are many species of Yucca, and care depends on the type.
Some require warmth the year round and seasonally moderate water.
Others, those seen in desert gardens, need very little water, and in the natural habitat depend for water on capillary action in the soil (which may look dry but is never completely so because of this action). This soil moisture is replenished by monsoon rains (American southwest, AZ, NM, etc.).

The Spanish Bayonet (Y. aloifolia) of the West Indies and parts of the American southeast requires water freely from April to September and enough to prevent complete drying out during October-March.
Usually greenhouse grown outside of the southeastern U. S., but it grows to 15-25 feet.

The Spanish Dagger (Y. gloriosa) of parts of the southeastern States may grow to 6-9 feet. It is drought-tolerant and prefers full sun. Also used in northern Arizona but not ideally suited; needs some shade during the heat of the day, needs water once a week and soil must be well-drained (the reason people have trouble with potted specimens, which should be re-potted as the soil loses its freshness).

The blue yucca (Y. rigida) of the Chihuahuan Desert depends only on the natural rainfall but may need a little during very dry periods. It takes full, desert sun. Again, soil must be well-drained.

The soaptree yucca (Y. elata) is the state flower of New Mexico. Another Desert species, full sun, needs only natural rainfall in semi-arid climates. Prefers deep, well-drained soil.

The Joshua tree (Y. brevifolia), largest of the Yuccas, grows naturally only in the Mojave Desert, but some xeriscapers grow plants from seed.