Weather Whiplash, Removing Crown Vetch, Controlling Quack Grass

The impact this change in weather is having on our flowers, plants and lawn. What to do if you have a tree infested with emerald ash borer? Getting rid of green worms. The best way to remove crown vetch. Why hydrangeas may be slow to grow. At what temperature should vegetable plants be covered? Preventing squirrels from damaging trees. How to loosen hard soil. Big plant sales are underway. Learn more from horticulturalist Mary Meyer at extension.umn.edu.