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| useplants have care requirements that differ from plants grown outdoors. Moisture, light, soil mixture, temperature, ventilation, humidity, fertilizers, and potting are all important factors. Each plant species has different care requirements, and care requirements can vary based on the specific pot, location in a particular home and potting mix used. However, all potted plants should have drainage holes to prevent root rot. One way to ensure drainage without a saucer below the pot to catch drippings is by using a "cache pot", which is essentially a larger pot intended to catch excess water, with an interior pot, often made of plastic, as the inner sleeve holding the soil. Most houseplants are species that have adapted to survive in a temperature range between 15 and 25 °C (59 and 77 °F) year-round, as those adapted for temperate environments require winter temperatures outside of normal indoor conditions. Within that limitation, there are houseplants which are native to many different types of habitats, from tropical rainforests to succulents and cacti native to deserts. Many houseplants are either epiphytes or live in seasonally dry ecosystems that help them adapt to the dry indoor air and inconsistent watering many houseplants are subject to. Often, houseplants from tropical areas are understory plants, and because they grow in shady conditions naturally, they are often able to thrive in lower-light conditions. Selected houseplants are typically of healthy origin, with tidy leaves and upright stems. Houseplants which survive in conditions similar to a homeowner's living space will have a higher probability of survival. Tropical houseplants which grow under high thresholds of heat, for instance, will grow sun leaves which contain fewer chloroplasts. Plants which grow in the shade will grow shade leaves, containing more chloroplasts. Horticulturists at Texas A&M University recommend acclim |