Oregon TruffleTryst Truffière Oregon TruffleTryst Truffière  

The Oregon TruffleTryst Truffière is an attempt to create an Oregon Black Truffle truffière using empirical information from several sources.

Jan 2020 --
    The number of holes showing up this fall were steadily increasing through November, but seems to have slowed toward the end of December. Half of the truffles found recently have been water-logged and old. We did find a few ripe black truffles on July 25th and August 17th, pretty much in the middle of summer! This fall we have also found a couple white truffles in the same patch as the black truffles.

Our daughter's little dog has been staying with us. Although he has had no training, he has begun to find a few truffles. We started by just walking him through the trees. Any time he stopped to smell a hole, if we thought it was where a truffle was dug out, we complimented him. At first we found the truffles, let him smell them, them complimented him and gave him a treat. Now he searches for them ... mostly ... as he is rather spastic most of the time :-). He has found about a dozen so far although almost all have been exposed to some extent on the surface. He has managed to find two or three that were completely covered but shallow. Most of the surface truffles he has found have been past their prime. One large one was immature, and of course, will never mature once removed. Still, it's promising.


May 2019 --
    We still haven't found any truffles in the trees that were innoculated and planted in the front field. The small stand that is producing seemed to give up about the same amount this year (mostly guessing by the number of holes dug by forest critters and the number of 'leftovers' that we managed to rescue for ourselves).


May 2018 --
    We managed to have a truffle dog out here late in the season. She did manage to find a small handful of ripe truffles! Unfortunately none of the truffles were found in the trees that were innoculated and planted in the front field.


Feb 2018 --
    We have had some Black Truffles again this year although it appears that there were fewer truffles produced. I'm uncertain if they need very cold weather to produce their fruiting bodies, but our winter had been very mild up to a couple weeks ago when we got a few freezing nights. Once again I haven't found anyone with a truffle dog nearby to see how many truffles might actually be maturing.

This year, but only starting in January, I placed a metal wire flag in each hole where varmits had dug up a truffle (by the smell or bits of truffle left behind) along with any hole larger than an inch in diameter that dead ended at a Fir tree root (likely held a truffle, but not necessarily). The trail cams and video cameras placed in the truffle trees show mice, squirrels, chipmunks, rabbits, possums, racoons, bobcat, coyotes and especially birds frequenting the area and digging in the duff. I have a number of mouse traps placed to try to keep the mouse-type population in check. Surprisingly the birds churn up the ground much, much more than any of the other critters.

May 2017 --
    As mentioned by a wild truffle collector though an acquaintance, Oregon Black Truffles can continue to mature into late spring. We (and the truffle thieving critters) have still turned up fresh Oregon Black Truffles into the middle of May.

January 2017 --
    We finally had some success finding Oregon truffles on the property. A few Oregon White truffles were found in an unanticipated area near the barn, occurring naturally. Several Oregon Black truffles were found around older trees than those planted and "innoculated" in 2008. Still, the trees where the truffles were found were "innoculated" by pouring a Black Truffle slurry around the base of the trees at the same time as the 2008 plantings. But the small number of trees and large number of 'critters' that like truffles will likely continue to make for slim pickings .


November 2014 --
    Several of the Doug Fir trees in the main field have had large holes dug next to them, close to the trunks. By the size of the holes I would guess it something larger than mice or squirrels. I also did not notice any sign of insect nests around the trees before or after finding the holes. Bears have been documented digging for, or eating truffles, and we have regular visits by black bears. But I have not yet tested any of the trees to determine if any of them may have black truffle mycelium growing on their roots, or actual truffles.

September 2010 --
    As part of my Horticulture studies, the trees in the main field were numbered, marked and measured for height and caliper. Three weed abatement treatments were randomly selected. They included recycled paper mats, moisture pourous plastic mats and using a propane torch to keep the weeds from growing around the trees. The final report, converted by Excel into a web page format can viewed HERE. You may want to zoom the pages out a bit.

March 2008 --
    Less than an acre of field has been set aside on the GCRF property for the attempt. Started in 2008, over 300 Douglas Fir seedlings have been innoculated with Oregon black truffles. Some of the black truffles were wild harvested and some were bought at the yearly Oregon Black Truffle Festival held in Eugene, Oregon. The Douglas Fir seedlings had their roots pressure washed and soaked in a disinfectant. They were placed in a slurry of Oregon black truffles for several days and then transferred to a mixture of peat, perlite, vermiculte and the remaining truffle slurry. After six to eight weeks they were transplanted to the field. Each of the original seedlings was covered with a plastic mesh tube to deter deer and elk browsing. Subsequent plantings without the plastic mesh protection suffered a loss of greater than 80% in the first year. Maybe the elk liked the truffle aroma .

Have a great day!


Soil Maps

Please note: These soil maps are for a specific area around the GCRF. They have been password protected due to a large number of visitors curious about the terrain around the site. You can view the same maps at http://websoilsurvey.nrcs.usda.gov/app/. We are sorry for any inconvenience this may cause you.

Have a great day!


Innoculation and planting of Douglas Fir seedlings using an Oregon Black Truffle slurry

Some of the Oregon Black Truffles used to innoculate the Douglas Fir seedlings