Managing black locust and buckthorn in the yard. What is the difference between determinate and indeterminate tomatoes and what to know ahead of planting them? What could cause an evergreen tree to dry out? When should canna lilies be planted? Why would a peony bush not be flowering? Getting rid of lily of the valley flowers. What could impact the taste of cucumber? Saving trees with windburn. When to trim lilacs. What could cause rhubarb to die? Growing hen and chicks plants. What type of soil should a bird of paradise plant grow in? How to stop rabbits from eating hostas. Learn more from horticulturalist Laura Irish Hanson extension.umn.edu.