Here's an excellent video from Architectural Digest about the Geoponika greenhouse, a "plant orphanage" in LA of old plant collections. The plants are cared for by landscape designer Carlos Campos Morera. Among the collection is a female Welwitschia (an ancient Namibian gymnosperm) which is grown in stacked old sewer pipes to allow it to grow a deep tap root to a deep desert water table.

https://www.architecturaldigest.com/video/watch/unique-spaces-inside-a-hidden-la-greenhouse-full-of-the-worlds-rarest-plants

#botany #ArchitecturalDigest #plants #glasshouse #horticulture #Geoponika