Oops! Left my winter sow trays inside too long and some seeds sprouted

I got my seeds sown in damp potting soil topped w/ seed starter mix in deep cell trays, ready to place outside for cold stratification, but I hesitated because it was so bitter cold (single digits F); then some non-gardening emergency stuff happened. By the time I got to them, they’d had about 3 weeks in the basement (50-55 deg. F), and some seeds had germinated. They were all nominally 60-day cold strat species. The most extreme was the dense blazing star (Liatris spicata); they really took off! I don’t have grow lights to keep them going indoors, and the neighboring species in the trays need their cold strat, so out they go! The early-bird overachievers will die (fortunately I still had some spicata seeds, so I just topped up those cells). Some other species only had a few early sprouters: zig zag goldenrod, yellow giant hyssop, prairie pussytoes, hairy beardtongue, Jacob’s ladder.