City Trees is a premier publication focused on urban + community forestry. In each issue, you’ll learn how to best manage the trees in your community and more!
Issue link: http://read.dmtmag.com/i/417159
ÜÜÜ°ÕÀL>vÀiÃÌÀÞ°V EXPERIENCED AN INCREASE IN DRASTIC SHORTTERM DAILY TEMPERATURES CHANGES PARTICULARLY IN THE SPRING AND AUTUMN MONTHS &OR EXAM PLE IN /CTOBER OF THE TEMPERATURE WENT FROM &# TO &# IN LESS THAN HOURS AND THIS PAST 3EPTEMBER WE FELT THE TEMPERATURE DROP FROM &# TO &# OVER A HOUR PERIOD )N SHORT THE CLIMATE HAS STAYED REASONABLY TRUE BUT DAILY WEATHER ATTRIBUTES ARE HIGHLY VARIABLE 4REE SPECIES SELECTION !S PREVIOUSLY MENTIONED ) LIVE IN A GEO GRAPHICALLY LARGE RURALURBAN INTERFACE REGION WHERE NUMEROUS AND CONSTANT FACTORS SUCH AS ALTITUDE SOLAR ASPECT AND PROXIMITY TO BODIES OF WATER CREATE VARIED MICROCLIMATE VENUES 4HESE VENUES ARE NOT IN MY OPINION CHARACTERISTIC OF 53$! PLANT HARDINESS ZONES B ) ALSO TAKE STOCK IN -ICHAEL ! $IRRS ASSERTION THAT h/NE SHOULD NEVER ALLOW HARDINESS RATINGS TO SOLELY DETERMINE WHETHER HESHE WILL USE A SPECIFIC PLANT 3INCE PLANTS HAVE NOT BEEN KNOWN TO READ WHAT IS WRITTEN ABOUT THEM IN TERMS OF HARDINESS THEY OFTEN SURPRISE AND GROW OUTSIDE OF THEIR LISTED RANGE OF ADAPTABILITYv !CCORDINGLY SINCE )VE TRIALED SEVERAL BARE ROOT ADVENTIVE INTRO DUCED BUT NOT FULLY NATURALIZED TREE SPECIES THAT ARE COMMONPLACE IN MOST OTHER STATES BUT ARE RARELY FOUND IN THE WINDY PLAINS OF SOUTH CENTRAL -ONTANA .OTE ALL TREES ARE SPRAYED WITH A ANTIDESIC CANT SPRAY IN LATE .OVEMBER AND EARLY &EBRUARY AND LOW SALT SLOW RELEASE NITROGEN FERTILIZERS ARE APPLIED IN !PRIL AND /CTOBER +ATSURATREE #ERCIDIPHYLLUM JAPONICUM HAS SURVIVED &# WINTER TEMPS 4IP DIEBACK IS COMMON AND FULL SUN IS A STRESS FAC TOR 4HEY ARE PERFORMING BETTER IN PARTIAL SHADE WITH PROTECTION FROM DRYING WINDS /RGANIC MULCH HAS IMPROVED THEIR THRIFTINESS BY MOD ERATING SEASONAL SOIL TEMPS ! SEVERE STORM THAT PRODUCED GOLF -ÌÕÀ`ÞÊ>ÃÊÜÌÃÌ>`ÊiÝÌÀiiÊÜi>ÌiÀÊiÛiÌÃÊLiÌÌiÀÊÌ>Ê>ÞÊÌiÀÊëiViðÊ/ÃÊLÕÀÊ>Ê+ÕiÀVÕÃÊ>VÀV>À«>®ÊÜ>ÃÊ«Ì}À>«i`Ê LÞÊÕÞÊ-ÌiÀLiÀ}ÆÊÌiÊÌÞÊÕ>ÊvÀÊÃâiÊÀiviÀiVi°Ê BALLSIZED HAIL PROPELLED BY MPH KPH SUSTAINED WINDS ON 3EPTEMBER OUTRIGHT KILLED EXPOSED TREES 4HEY REQUIRE GALLONS , OF WATER PER WEEK TO SUSTAIN THEMSELVES THROUGHOUT *ULY AND !UGUST %NGLISH OAK 1UERCUS ROBUR @&ASTIGIATA HAS SURVIVED &# WINTER TEMPS 4WO FLUSHES OF GROWTH AVERAGE FEET M OF TERMINAL HEIGHT 3ECOND FLUSH AROUND MID !UGUST TENDS TO BE SUSCEPTIBLE TO EARLY OR LATE SEASON FROSTS ,OST AN AVERAGE OF FEET M DUE TO THE 3EPTEMBER HAILSTORM BUT HAVE REBOUNDED NICELY AND ARE STANDING TALL AT FEET M 3EVEN OUT OF TEN ARE TRUE TO FORM TIGHTLY UPRIGHT TWO DIED AND ONE OAK IS DESTINED TO BE A SHORT STUBBY SHRUB /NLY NEED GALLONS , OF WATER WEEKLY AND IT APPEARS THEY DONT LIKE hWET FEETv ,ACEBARK ELM 5LMUS PARVIFOLIA HAS SURVIVED &# WINTER TEMPS !VERAGES FEET M TERMINAL GROWTH BUT SEVERELY DAMAGED BROKEN CANKERED BRANCHES BY 3EPTEMBER HAILSTORM (AVE REBOUNDED NICELY THIS PAST SEASON AND THRIVE IN FULL SUN WITH MODERATE WATER GAL , PER WEEK "EAUTIFUL RED LEAVES IN /CTOBER $AWN REDWOOD -ETASEQUOIA GLYPTOSTROBOIDES HAS SURVIVED & # WINTER TEMPS !VERAGES FEET M TERMINAL GROWTH BUT SEVERELY DAMAGED BY 3EPTEMBER HAILSTORM 4HEY THRIVE IN FULL SUN BUT ) TAKE TIME TO MIST THE FOLIAGE DAILY TO EASE STRESS FROM SEAR ING AND DRY SUMMER WINDS $ISTAL SHOOTS ARE SUSCEPTIBLE TO WINTER CONDITIONS BUT PUSH OUT NEW GROWTH BY MID-AY )VE NEVER SEEN AN APHID OR MITE ON THESE TREES —Mike Garvey, Registered Consulting Arborist, Garveyʼs Urban Forest, Billings, Montana