By Liz Baessler Esperanza is a flowering shrub that produces bright yellow flowers all summer long and sometimes beyond. It is relatively low maintenance, but some strategic cutting back really helps it to keep blooming fully and steadily. Keep reading to learn more esperanza pruning information, including how and when to prune esperanza plants. Esperanza Pruning Information Should I prune my esperanza? Yes, but not too much. Esperanza, also frequently called Yellow Bells and Yellow Elder, is a remarkably low maintenance plant. It performs well even in very poor soils and has excellent heat and drought tolerance. It needs full sun in order to bloom to its fullest potential and to maintain a compact shape. It will still grow in partial shade, but it will form a long, gangling appearance that not even pruning will be able to fix. Pruning esperanza plants should be done only to encourage new growth.