If you want to become a master gardener, now is your chance. Is it too late to fertilize perennials? How to get female squash to bloom. What is the best way to maintain a maple tree? Pumpkin growing problems. Clematis concerns. Getting rid of moss on the patio. How to grow a peach tree. When to prune hydrangeas. Grass seed recommendations. Why lilacs have been having problems. Learn more from Master Gardener Teresa Rooney at extension.umn.edu.