Thomas Leo Ogren
Expertise on landscape plants and allergies. I'm a rose breeder, energetic-fun speaker, writer, lizard collecting nut, birder, a rock hound, and I love to read, study, laugh, sing, and fish. I've got an MS degree in Agriculture/Horticulture and did all my graduate work on pollen, plant flowering systems and allergies. I collect cultivars of pollen-free plants, grasses, shrubs, vines, trees.
I give talks and do consulting work on the interactions between landscaping and human health. more...