QuestionsHow to growVegetable GrowingRhubarbFlowers on rhubarb plants 0 Vote Up Vote Down Orla Stanley asked 14 years ago For a second year flowers have appeared on rhubarb plants, have cut them out but wonder what conditions are causing flowers to appear in the first place. I understand the plant wastes energy flowering at the expense of the fruit. 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago Good growing weather last summer built up the energy resources of the plants and laid down flower buds for this year.