http://en.wikipedia.org/wiki/Hydrangea#Cultivation_and_usesCitat:
Hydrangea paniculata is reportedly sometimes smoked as an intoxicant, despite the danger of illness and/or death due to the cyanide.
http://www.drugs-forum.com/forum/showthread.php?t=162628http://www.erowid.org/herbs/hydrangea/hydrangea.shtmlCitat:
Diuretic and Soothant. Hydrangea paniculata has been smoked to produce cannabis-like effects, but many species from this genus are dangerous if smoked, as they contain a cyanide compound when burned.
Don't do it, selvom der kan være noget om det er der intet at finde omkring dose, metode eller eller i det hele taget andre ting der er essentielle at vide før man begiver sig ud i at prøve et nyt stof.