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How to Grow: Allergy Free Gardens
Learn about allergy free gardens, including how to plant and grow them. Listen to podcast: It's garden and allergy season. 50 years ago, less than 5 percent of the population had allergies to plant pollen. Now that number hovers closer to 40 percent. What happened? Plant breeders started selecting male trees and shrubs (which are loaded with pollen) over females (which have little pollen) to reduce that amount of "litter" that falls to the ground from female plants. The unintended consequence is that we have more street, park, and...