My Morning Walk in San Francisco

I live at the bottom of a hill in San Francisco and my morning walk often takes me on the same route. The street I go up is slightly less steep than the parallel ones that are adjacent. Is that why I choose it? At the corner when I head up the hill there is a big house, and I learned about who lived there from a flower grower's grandson who still lives there. San Francisco has a flower growing history and our climate is perfect for growing many varieties of flowers. Roses thrive in greenhouses here and parts of McLaren Park were all greenhouses and growing areas. The house at the corner of Nebraska and Cortland was her house and she owned all the lots that go up the hill. They now are homes but I like to imagine while I trudge up the steep incline how they must have looked as greenhouses. I wonder re: what they grew, where they went and how beautiful it must have been.  I know that roses were grown in greenhouses (now warehouses and a brewery) at the bottom of the hill where I live which is only a few blocks away so I allow myself to picture roses all the way up the hill until I get to the older houses on Nevada. I imagine that is where they stopped because she sold all the land in one package in the 50's. San Francisco history gives and gives, it feels like a rare privilege to live here.