Under favorable conditions, as the years pass the plant will generate more and more stems, growing slowly larger in the process. This is a boon to the ornamental gardener, since planting once results in more decoration every year. Sometimes, however, a plant that is doing this will need to be [[division (plant)|divided]] in order to maintain its health and productivity. | Under favorable conditions, as the years pass the plant will generate more and more stems, growing slowly larger in the process. This is a boon to the ornamental gardener, since planting once results in more decoration every year. Sometimes, however, a plant that is doing this will need to be [[division (plant)|divided]] in order to maintain its health and productivity. |