Holly | Live Oak | Maple | Elm | Magnolia | Pine

 

Sanford Live OakTrees provide vital functions in residential and urban landscapes, but often need supplemental irrigation when growing space is limited and during production. There is little knowledge of how much water trees use over the course of a year and as they increase in size.

Contained herein are single-tree examples of daily water use of 6 common tree species grown in hardiness zones 7 to 10.  Some are also representative of similar species grow in more northern climates.   Daily tree water use measured over a 5 to 6 year period for each species ranged from 5 oz to 50 gal per day, as trees grew from 9 inches to some over 26 ft in height.  Water use varied 4-fold among species.

This data was collected from 2001 through 2011 at the University of Florida’s Mid-Florida Research and Education Center in Apopka, Florida.  This information is provided to aid those responsible for tree irrigation to conserve water while providing enough for healthy and vigorous trees.

A section added in May 2013 (Calculations), provides linear equations for predicting tree water use for the 6 species currently available.  These are based on trunk circumference at 12 inches above the soil and ETo (reference evapotranspiration) for tree up to 8 inch in trunk circumference.

Three additional species (bald cypress, crape myrtle and green ligustrum) are currently under study.  Information from these will be added as annual data becomes available.

 

*The information presented has not yet been peer reviewed.