Rhubarb is a perennial plant, and it needs to be fertilized twice a year – once in spring and once in the fall. Luke Marion, founder of MI Gardener says that not remembering to fertilize rhubarb ...
Better Homes and Gardens on MSN10mon
How to Plant and Grow Rhubarb
Rhubarb plants are heavy feeders ... with at least five gallons of potting soil amended with a slow-release fertilizer.