What type of turf has the deepest roots? What is the best grass seed for Minnesota lawns? How to best propagate ginger? Trimming ornamental grasses. Fixing a lumpy lawn. When to use your sprinkler system. Is it time to fertilize? Making a lawn more lush. What temperature should the lawn be before seeding?Learn more from Jon Trappe and horticulturalist Laura Irish Hanson. ext.umn.edu