Is periwinkle a complete or incomplete flower?

Why is my jalapeno plant turning yellow? How can I effectively get rid of grubs in my garden? How do ladder plants climb and support themselves as they grow? What term is used to describe the nutrition of plants? What are some of the palm trees predators? What do you call palm tree prawns? What do you call two call two trees wrapped around each other? What is the weight of roses? Why did my cucumber turn yellow? Why are we interested in the comncept of a seed bank when we are usinng our weeds as a compnent to healthy soils? How do you describe the dandelion plant? What do petunias look like? Where does a cobra lily live? How can I identify and treat plant yellow spots on leaves? Why do asters get aster wilt? What are all pome fruits? Do you have to cut the stems off antirrhiums when they have finished flowering? How can I successfully propagate forsythia plants using cuttings? How should I go about pruning a crab apple tree? What is the best part about having a Garden?