In states where marijuana has been legalized, consumers are converting home closets to discrete horticultural centers for cultivating pot. Is this a meaningful trend?

Real estate developer Eric Hirshfield in Washington, DC - where marijuana is legal - says customers have been attracted to a built-in "herb closet" included in a recept condo projects - the amenity is widely understood to be a marijuana growing space. Artificially lighted andventilated, the fully enclosed spaces accommodate the crops in copact growing spaces - not so different in concept from a wine storage rack.

Hirshfield told Curbed DC newspaper, "With any conversations I have with my buyers, I call it a 'grow closet' for herbs." Hirshfield says the idea came to him when trying to find a use for a utility closet that included exposed water valves, dusctwork, and other mechanicals. 

Advice websites are plentiful. The aptly named GrowingCloset.com, for example, describes itself as the site to visit, "If you want to learn how to grow weed in your closet or other small area.. this is the place to be." 

Articles posted include numerous videos and advisories about cultivation of the marjuana plants, but also stories on constructing a marijuana closet.

Two Stor-It-All cabinets from Lowes.com
Five — 4 inch inline duct fans
6 foot sections of Self-Sealing foam pipe insulation
  (used to prevent light from escaping)
Hole saws to drill the 4 inch holes for fans and electrical
Sections of 8 foot Transition Ducting
Two Sun System 4-Inch Air Cooled Reflector lights
Two 600 Watt Galaxy Electric Ballasts
Two 600 Watt SunMaster Cool Deluxe Metal Halide Grow Lamps 

Hydrobuilder.com features the SuperCloset SupHerb Dryer, "the first professional vertical herb/flower dryer in the world." Built in pine and mahogany,  SupHerb Dryers were designed to blend into home, office, or any environment.

The herb drying closet has specific requirements. "Any Master Grower will tell you that the best way to dry a plant is to hang it upside down, vertically, not horizontally," says SuperCloset; laying plants horizontally may also increase the chance of mold, mildew, and rot. The closets are 72 inches tall and 32 inches wide, and retail for $1,240. An growing closet measuring 72 x 36 inches sells for $3,040.