On my evening walk, while listening to a Skepticality interview with secular humanists Mel Lipman and Lori Lipman Brown, I took some pix of fireweed growing in weird places. (That’s Epilobium angustifolium, Sw. rallarros, mjölkört, “railroad man’s rose”, “milk plant”). The plant propagates by wind-borne seeds like thistledown, and they can apparently sprout anywhere. Some were growing out of a crack in a vertical cliff face.
Others appeared to have been planted on Mr. Kight’s, my ground-floor neighbour’s, balcony.
As it turned out, he had simply left a little planting soil with his gardening tools in a large pot, and the fireweed had come along and made the most of the situation. Blooming there for the benefit of Mr. Kight.