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→Cultivation
It is a popular [[houseplant]] that needs little attention, with several [[cultivar]]s available with the leaves [[variegation|variegated]] with red or pale yellow. It requires a minimum temperature of 15 °C (59 °F), and is more tolerant than most plants of dry soil and irregular watering, though liable to root decay in permanently wet soil. Because it requires minimal care it is very popular in offices where the constant heat and light suits their growing requirements.
It is a popular [[houseplant]] that needs little attention, with several [[cultivar]]s available with the leaves [[variegation|variegated]] with red or pale yellow. It requires a minimum temperature of 15 °C (59 °F), and is more tolerant than most plants of dry soil and irregular watering, though liable to root decay in permanently wet soil. Because it requires minimal care it is very popular in offices where the constant heat and light suits their growing requirements.
It has been widely confused with other species of ''[[Dracaena (plant)|Dracaena]]'', and many or most of the plants in cultivation under this name may actually be ''[[Dracaena cincta|D. cincta]]'' or ''[[Dracaena concinna|D. concinna]]'' (Huxley 1992).
It has been widely confused with other species of ''[[Dracaena]]'', and many or most of the plants in cultivation under this name may actually be ''[[Dracaena cincta|D. cincta]]'' or ''[[Dracaena concinna|D. concinna]]'' (Huxley 1992).
It is one of the plants used in the [[NASA Clean Air Study]] and has shown to help remove [[formaldehyde]].<ref>http://ntrs.nasa.gov/archive/nasa/ssctrs.ssc.nasa.gov/foliage_air/foliage_air.pdf</ref>
It is one of the plants used in the NASA Clean Air Study and has shown to help remove formaldehyde.<ref>http://ntrs.nasa.gov/archive/nasa/ssctrs.ssc.nasa.gov/foliage_air/foliage_air.pdf</ref>
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The dragon tree is an effective air-cleaner and is among the best plants for removing [[xylene]] and [[trichloroethylene]] <ref>Wolverton, B.C. (1996) ''How to Grow Fresh Air''. New York: Penguin Books. p.72</ref>
The dragon tree is an effective air-cleaner and is among the best plants for removing [[xylene]] and [[trichloroethylene]] <ref>Wolverton, B.C. (1996) ''How to Grow Fresh Air''. New York: Penguin Books. p.72</ref>
===Pests and diseases===
===Pests and diseases===
==Varieties==
==Varieties==