The Aztecs used Dahlias with their the long hollow stem of the (Dahlia imperalis) for water pipes. The indigenous peoples variously identified the plants as "Chichipatl", which was translated to, "water cane", "water pipe", "water pipe flower", "hollow stem flower" and "cane flower".
The term full shade does not mean 'no sun'. A location is considered to be in full shade if it receives less than three hours of direct sun daily and receives filtered sun the rest of the day. Preferably, the hours of direct sun occur in the cooler hours of the morning with filtered protection from intense sun in the late afternoon.