May is the month to . . . Deer in My Garden! How to Rejuvenate Your Old, Overgrown Lilac Earlier and Increased Yields by Using Plastic Mulches and Row Covers May is the month to . . . By Dr. Lois Berg Stack, Extension Specialist, Ornamental Horticulture Check temperatures to determine planting dates. Use a read more Maine Home Garden News — May, 2010