Greenhouse: Does anyone have a Conservatory???, 1 by HollyAnnS

HollyAnnS wrote:
I'm planing on putting in a cinder-block foundation to support the walls but no real floor. What isn't flower beds will be brick but installed as you would a brick patio.
The picture I used to start this thread is the palm house of the Rawlings Conservatory in Baltimore. When I toured the conservatory the director talked about not having a floor in the Palm House. I can't remember exactly what she said but it was something like the beds have about 5ft of special soil and under that is your basic Baltimore dirt.
Here is a picture from inside the palm house.