We have columbine all over our yard. Not all of it seems to bloom, but yesterday I noticed that several had. Unlike last year, when the flowers were all simple columbine (like these, but of a very pretty magenta color), this year they all seem to be double-flower hybrids much like the one shown on the Wikipedia page linked above.
Do different varieties of columbine sometimes bloom in different years, or have my columbine self-hybridized?
"If ye love wealth greater than liberty, the tranquility of servitude greater than the animating contest for freedom, go home from us in peace. We seek not your counsel, nor your arms. Crouch down and lick the hand that feeds you; May your chains set lightly upon you, and may posterity forget that ye were our countrymen." -- Samuel Adams