How small can I make a pennisetum division?
I have an old unknown perennial pennisetum clump that I dug up and have growing, potted, in a heated greenhouse. I have a sloped problem area in my yard that I thought would look really nice with this pennisetum massed. The problem is that I would need at least 150 plants to cover the area. Can I divide my pennisetum down to a single stem with a bit of root and expect these to grow? I've only divided clumps into 4's or 6's in the past but would like to be able to get a maximum number of plants from this clump for uniformity's sake. If this is viable, I would be planting into individual cells soon for late Spring planting out. I don't care if it takes several years for them to mature, my problem is numbers.