Thanks, rick - you added some good points there.
Basement never gets too HOT.
I can push the dresser up to the wall and tent it off that way, then remove the plastic when they sprout.
I have several scavenged mirrors to increase the light.
And I have a small desk fan I can put in there.
Would not even have thought of tenting if you hadn't said it.
Back in 2004, I successfully started seeds, including asclepias tuberosa and lavender.
Just in peat pots in the kitchen - no tent, no nothin.
I don't know what happened, but I lost the touch.
I'm ready to try again, paying more attention!
I have only a few seeds for one special plant that specifies 70 degrees to germinate, so I am glad I asked my question and found the thermostat.