“It’s functional and provides privacy,” she said, “but it’s memorable and provides a living art piece in their showroom.”

Bruce E. Teitelbaum, the chief executive and founder of RPG, a design/build firm for brands and retailers, said he adhered to the same design principles for the medical marijuana provider Columbia Care, for which RPG created a dispensary in Manhattan in 2016, as he did for clients like Barnes & Noble College, which runs campus bookstores: “We followed the philosophy of good taste, good design, good customer navigation.”

Like Ms. Stone, Mr. Teitelbaum avoided showing up-close photos of gnarly buds, à la High Times, and instead kept any references to the product for sale artistic, and subtle. He installed terrariums with succulents and other potted plants.

“That was a touch to the natural quality, the growing quality,” Mr. Teitelbaum said. “It’s like going into a great bakery and understanding they must have a beautiful kitchen and beautiful process of baking bread when you just see the front end.”

The activity of marijuana smoking has always had its gear, and this too has gotten a design upgrade in recent years. Higher Standard sells pipe-cleaning products like finely milled rock salt and “ISO Pure” solvent in packaging that looks as if it came off-the-shelf at Sephora.

The company Apothecarry Brands specializes in “high quality organizational systems,” like a $300 airtight, odor-resistant, lockable home storage case.