Re: Need advice quick....
I've had success with other plants by making a little box of EPS (aka styrofoam) sheeting (available at Home Despot) around each plant and then filling the insides with mulch, topping off with a final sheet of styro, and wrapping the whole schmoo in burlap. Then I would just pray for the cold snap to end.
This kept my outdoor Hibiscus alive in Edmonton during a -30 C cold snap.
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