subject: Brassavola Orchid, Lady of the Night [print this page] It is also good to steep your orchid in water for about 15 minutes 1 2 times in a week. This will provide the chance for the fat white roots to absorb sufficient amount of water to produce turgid leaves. Brassavola can tolerate low humidity as low to 40%. Extra humidity by the means of spraying and the use of humidity trays during their growth period will produce better blooming.