Yes, they can.
Surest way is to shorten their night.

Easiest way to do that is tack on a couple hours of light in the morning, or evening.

Don't take much to "keep 'em awake". A couple CFLs would work jus' fine.
As the days get longer you can cut back on the artificial light.

In Hawaii we can do re-grows outdoors.
Actually harvest buds and let them re-veg and re-bloom.
Jus' gotta get the timing right.
I've got a Thai plant doing a short season re-grow from a discarded rootball!Attachment 273483

Aloha, sunbiz

Weezard
Weezard Reviewed by Weezard on . Can Plants revert from flower to veg state? I'm an outdoor grower that has recently taken up indoor as a hobby. Last November, I became bored and started the pics you will see below. 3 weeks ago, I transplanted the 4 plants into 5 gallon buckets. There were 6 originally, 2 were obvious males that I tossed(although seed stock is another topic I would like to discuss in the future). The remaining 4 are in the south windows indoors where they were started. I now have 2 4-month old plants(the other 2 are reluctantly still vegging)enjoying Rating: 5