Botany 2015 is huge for a botanical meeting, around 1800 people attending from a dozen or so different scientific societies; this is about double our usual annual meeting. The meeting is taking place in the colossal Shaw Center which sprawls down from "uptown" toward the river like a tiered greenhouse, which is strangely appropriate and partly what it is, but a lot of up and down stairs. TPP pities a colleague who blew out her Achilles tendon and arrived with a walking boot on! TPP has learned that Edmonton is sort of a surprising city but you can't get here from anywhere very easily, and everyone has travel horror stories. Yesterday was a lot of meetings, followed by a lecture about how "cool" botany is, and then a big social event. Nice to see so many old friends and colleagues, young and old, and to catch up on everyone. Spent the morning listening to research about invasive plants. Take home advice: do not fertilize tree of heaven.