The trees are
leafing out and we’re back working in our gardens and walking in parks. Itchy,
watery eyes and runny noses are also on their way back...and multiplying in
number and severity year by year.
This situation is no coincidence, according to landscape
gardener, teacher and writer Thomas Ogren. He believes the steady increase in
the number of seasonal allergy sufferers has its roots in a trend toward using
male trees and shrubs in urban landscaping. Among the trees believed to be
problematic for allergy sufferers are such popular varieties as cottonwood,
willow, elm, aspen, maple and poplar.
Ogren is a former nursery owner with a Master of
Science in Agriculture from Cal Poly University, who lives in San Luis Obispo,
California. He is also the author of Allergy-Free Gardening: The
Revolutionary Guide to Healthy Landscaping, published in 2000 by Ten Speed
Press, in which he presents his case for claiming that our gardening and
landscaping practices may be the culprit for the continual increase in the
number of allergy or asthma sufferers.
He says homeowners and commercial landscapers like male clone trees because they
are “litter-free”, meaning they do not drop seeds, seed-pods, or fruit on lawns
and sidewalks. However, these male plants all produce large amounts of
allergenic pollen. . .
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Wendy Priesnitz is the Editor of
Natural Life Magazine and a journalist with 30 years of experience. She has also
authored nine
books.
Read her
blog.