Cymbidium plants have evolved water storage organs (pseudobulbs) to withstand periodic, and sometimes prolonged drying in their native habitats. The larger the pseudobulbs, the longer a period of dryness they are equipped to deal with. For this reason, it is recommended that plants in cultivation be allowed to go nearly dry between waterings. Watering once a week is usually sufficient for most plants, unless conditions are excessively hot and/or dry. Smaller plants may require watering every 4-5 days during most of the year, until they are more mature. At cooler times of the year, plants may be left a little longer between waterings.