Bugleweed spreads by sending out runners with new plants at the end and those will root. If I want to help it spread faster, I cut off some of those runners and pin them down to the soil in another place, and the roots will grab into the soil. I either do it just before a good rain so I don't have to bother watering them at all. My favorite variety is Bronze Beauty, I think it spreads a bit faster than Chocolate Chip, and is the same color, just bit bigger leaves. Bugleweed is very maintenance-free as well.
