Most people do not know that North Central Texas is actually more windy than Chicago!
To answer your question on wind block
We get strong north winds from the Arctic in winter
Strong southern winds from the gulf in spring and summer
and Strong winds out of the west on occasion based on currents from the Pacific
The area that we get the least wind from is the east
Look at your home and the orientation of windows and the yard space you plan to use this may provide some great guidance on the wind block especially if your house already provides shelter on one side.
The best resource I know of for trees that do well in North Central Texas is Neil Sperry and he has a website with the best trees and shrubs for North Texas. Best of luck to you!
Keller Williams Realty
Lynn911 Dallas Realtor & Consultant
Multimillion Dollar Sales Producer
http://www.lynn911.com 100's of Dallas homes listed for sale or lease
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Prevailing wind direction is South, but I've never hear of here in a residential neighborhood people planting for wind block. In the country to protect cropland on the plains, yes, but not in a neighborhood.
I've never really noticed or heard about people bothered by the wind?