Help with outdoor grow flowering early, outdoor lights question

Hey, so I planted in march thinking that my plants would realize the days were getting longer. Apparently I was wrong to do so. Here's the situation: I have 9 plants out in the forest, and I need a CHEAP way to keep them from flowering. Any ideas? Something like solar panels, or batteries and hooking up some cfls to them or something with a timer. Solar lights are too weak right?

Either bring them back indoors under lights (assuming they're in pots) or start over again.

I can't imagine any scenario where rigging up grow lights to light a guerrilla grow in the forest turns out well for you.

Do you think they'll definitely go into flower? They have about 13-13 1/2 hours of light total right now and it's increasing everyday.

Yea there going to flower until you get a light on them for at least an hour every evening or early morning. Veg starts AROUND April 25th this year. (Nor cal)

That's unfortunate, but I think I'm just gonna have to let them flower until they go back into veg. Don't really have any other options, maybe could take some clones.