GREEN SPACE surely, her blank slate started to fill in and become a lush oasis with something different to make note of with each step. Forty-two years later, Hager is still hunting for exciting new plants and ways to improve what she already has growing. " I don't design anything on paper, " she says. " I am a visual person, and I like to actually see it. " An intrepid soul, she is not afraid to chop down large shrubs and cut back and divide plants that have outgrown their spaces. " I like the challenge with plants. I ask myself, 'Is this really going to work?' It's all trial and error but usually they are fine and grow