@kousa: Thanks. That pic was taken 2-10-15 and I didn't start germinating until late January, so those seedlings are not very old. At most 2 weeks. I use only ProMix (seed starting mix; not regular potting soil). Those are amaryllis. I have them in pots (these I plant in real dirt not potting mix) and put them outside all summer (feeding occasionally), then in an unused room in Sept where it's 50-55 degrees and only natural light. With this method they bloom reliably every year, often making offset bulbs, so sometimes I end up with 5 or 6 flowering stalks in one (large) pot.
@admmad: a scientific person like you will no doubt be horrified at my lighting 'protocol'. I have 5 or six shoplights all plugged into various outlets or extension cords, so timers are too much trouble. I leave them on, sometimes for several 24-hour periods at a time (because the shoplights are a few feet apart, so I figure most of the seedlings are not getting intense light all day and wouldn't mind light round the clock), then when I think the seedlings must be tired and want a rest, I shut the lights out for a night. Completely gut feeling and unscientific. I'm a night owl so it's usually quite late when I shut them off, and the room they're in has very large windows both east and west, so they get daylight as soon as the sun comes up. Which is to say the rest period is not all that long. I have not noticed any rest/restart periods, but I will pay closer attention this year to see if that happens.
