Janet Hartin (@J_Hartin) header
Janet Hartin (@J_Hartin) profile picture

Janet Hartin

@J_Hartin

Univ. of CA Ag & Natural Resources Environmental Horticulturist in Southern CA specializing in research/educ. in drought, heat, and pest resistant trees

Joined March 2020
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Photo by Janet Hartin (@J_Hartin)Photo by Janet Hartin (@J_Hartin)Photo by Janet Hartin (@J_Hartin)Photo by Janet Hartin (@J_Hartin)Photo by Janet Hartin (@J_Hartin)Photo by Janet Hartin (@J_Hartin)Photo by Janet Hartin (@J_Hartin)Photo by Janet Hartin (@J_Hartin)Photo by Janet Hartin (@J_Hartin)Photo by Janet Hartin (@J_Hartin)
Trees are a great nature-based way to cool urban heat islands. Learn about our @ucanr and other projects at the Thelma Hansen Symposium (virtual) "Trees to the Rescue" May 14-16. Register here: ucanr.edu/sites/PSU/files/39…
fake grass measured 173 degrees F. in Palm Springs several spring and summer afternoon the last three years and turned my i-phone off. The shade of a single tree can reduce this temperatures to under 100 degrees F.

ALT fake grass measured 173 degrees F. in Palm Springs several spring and summer afternoon the last three years and turned my i-phone off. The shade of a single tree can reduce this temperatures to under 100 degrees F.

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In @ucanr heat studies, I measured the temperature of fake grass and asphalt between 3:30-4:00pm in spring and summer to be as high as 173 degrees F in inland and desert cities in So Cal. Trees cool these surfaces >70 degrees F. Benefits summarized here: anrcatalog.ucanr.edu/pdf/872…
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Image from Janet Hartin (@J_Hartin)
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Image from Janet Hartin (@J_Hartin)
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Thanks so much @UCANR @MGPSanBern UC Master Gardeners, Inland Empire RCD, and all of our other partners for providing 2,000 free trees along with information on their planting and care to residents of low shade neighborhoods.
Image from Janet Hartin (@J_Hartin)
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So thankful for our @ucanr @MGPSanBern Master Gardener volunteers and our Inland Empire RCD partners who provided free tree care information and trees to Ontario residents Nov. 19. Over 1,480 trees given away over the past four years are cooling urban heat islands.
Photo shows tree recipients ready to take their free tree home!

ALT Photo shows tree recipients ready to take their free tree home!

Photo shows sponsor/partner Mandy Parkes from the Inland Empire RCD and UCCE Master Gardeners of San Bernardino County in front of free trees being given away in Ontario, CA.

ALT Photo shows sponsor/partner Mandy Parkes from the Inland Empire RCD and UCCE Master Gardeners of San Bernardino County in front of free trees being given away in Ontario, CA.

Photo shows tree recipient discussing tree planting and care with UCCE Master Gardeners of San Bernardino County in Ontario, CA.

ALT Photo shows tree recipient discussing tree planting and care with UCCE Master Gardeners of San Bernardino County in Ontario, CA.

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Do you live in Ontario, CA and have room for a free drought, heat, and pest resistant shade tree? Pre-register here: ucanr.edu/freetrees4ontario and pick up your tree 12:30pm-3:00pm Sunday, November 19. UC Coop. Extension Master Gardeners @MGPSanBern will provide free tree care tips.
Photo of a UC Cooperative Extension Master Gardeners providing free information on tree planting and care before a tree giveaway.

ALT Photo of a UC Cooperative Extension Master Gardeners providing free information on tree planting and care before a tree giveaway.

Photo of a tree recipient

ALT Photo of a tree recipient

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The @uccesanbern Volunteer/Partner Recognition dinner Wednesday was a great way to show appreciation to our @MGPSanBern, @MFPSanBern, @ucanrefnepsb, 4-H, natural resources, & horticulture staff and volunteers and the over 50 partnering organizations that were honored. Thank you!
Photo of attendees at the UCCE San Bernardino County Volunteer/Partner Recognition Dinner Nov. 8 in Bloomington, CA

ALT Photo of attendees at the UCCE San Bernardino County Volunteer/Partner Recognition Dinner Nov. 8 in Bloomington, CA

Photo of our UCCE San Bernardino County Annual Report and the Statewide Master Gardener Impact Report Presented to Partners at our Nov. 8 Volunteer/Partner dinner.

ALT Photo of our UCCE San Bernardino County Annual Report and the Statewide Master Gardener Impact Report Presented to Partners at our Nov. 8 Volunteer/Partner dinner.

Photo of attendees and some of the honorees at the UCCE San Bernardino County Volunteer/Partner Recognition Dinner Nov. 8 in Bloomington, CA

ALT Photo of attendees and some of the honorees at the UCCE San Bernardino County Volunteer/Partner Recognition Dinner Nov. 8 in Bloomington, CA

Photo of a Certificate of Recognition from San Bernardino County Board of Supervisor Joe Baca, Jr.

ALT Photo of a Certificate of Recognition from San Bernardino County Board of Supervisor Joe Baca, Jr.

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If you have room for a climate-resilient shade tree and live in the Ontario, CA area, join us on Sunday, November 19 for 30 minutes anytime between 12:30-3:30pm to listen to a short tree care talk by @MGPSanBern and take your tree home Pre-register here: ucanr.edu/freetrees4ontario
photo of the UC Cooperative Extension Master Gardener logo

ALT photo of the UC Cooperative Extension Master Gardener logo

"Red Push" Pistache is drought, heat, and pest resistant tree that grows well throughout much of California

ALT "Red Push" Pistache is drought, heat, and pest resistant tree that grows well throughout much of California

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I'm looking forward to seeing many of you on Oct. 19 in Corona at the Street Tree Seminar. 1.5 CEUs and lunch! Only $25 for members and $35 for nonmembers. Let's talk about all those benefits of trees! caufc.org/wp-content/uploads…
This photos shows how well our UC/USFS climate-ready landscape tree species are doing on no supplemental water other than what Mother Nature has offered since March 2020. This period included two very dry years!

ALT This photos shows how well our UC/USFS climate-ready landscape tree species are doing on no supplemental water other than what Mother Nature has offered since March 2020. This period included two very dry years!

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Thank you @UCMasterGarden @MGPSanBern @MGPRiverside for providing tree care information and more than 50 free climate-ready trees to Jurupa Valley residents at the Louis Robidoux Parkland and Pecan Grove (LRPPG). Support from the IERCD and other partners is much appreciated!
Photo of a family that received a free tree and information on its care from University of California Master Gardeners of Riverside and San Bernardino County in Jurupa Valley on Sept. 23, 2023.

ALT Photo of a family that received a free tree and information on its care from University of California Master Gardeners of Riverside and San Bernardino County in Jurupa Valley on Sept. 23, 2023.

Photo of some of the University of California Master Gardeners of Riverside and San Bernardino County who provided tree care tips and free trees to residents of Jurupa Valley on Sept. 23, 2023.

ALT Photo of some of the University of California Master Gardeners of Riverside and San Bernardino County who provided tree care tips and free trees to residents of Jurupa Valley on Sept. 23, 2023.

Photo of University of California Master Gardeners of Riverside and San Bernardino County providing tree care tips and free trees to residents of Jurupa Valley on Sept. 23, 2023.

ALT Photo of University of California Master Gardeners of Riverside and San Bernardino County providing tree care tips and free trees to residents of Jurupa Valley on Sept. 23, 2023.

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Janet Hartin retweeted
Pam Kan-Rice (@UCANRpam) profile picture
Pam Kan-Rice@UCANRpam15 Sep 2023
Lots of @usda $$$ to plant trees in California! 🌳🌴🌲 That's the kind of shade we like @J_Hartin
Dept. of Agriculture (@USDA) profile pictureDept. of Agriculture
@USDA14 Sep 2023
📢 Today @SecVilsack announced that @forestservice is awarding over $1B in grants to help combat climate change, enhance access to nature, and more for communities across the nation. usda.gov/media/press-release…
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Cool your neighborhood! Free drought, heat, and pest tolerant trees for Jurupa Valley residents Saturday Sept. 23 from 10am - 12:00 pm. @ucanr Master Gardeners will provide care tips to keep your tree healthy. Must pre-register here to ensure a tree:  ucanr.edu/freetreesjurupaval….
Picture of a person who received a free tree at a UC Cooperative Extension/Inland Empire RCD tree education/tree give-away in 2023. The shade of a single tree can reduce asphalt surface temperatures by more than 65 degrees F and cool surrounding air temperatures 6 to 12 degrees F in spring and summer in inland cities.

ALT Picture of a person who received a free tree at a UC Cooperative Extension/Inland Empire RCD tree education/tree give-away in 2023. The shade of a single tree can reduce asphalt surface temperatures by more than 65 degrees F and cool surrounding air temperatures 6 to 12 degrees F in spring and summer in inland cities.

Photo of a "Red Push" Pistache tree doing great in our UC/USFS 'climate-ready landscape trees' trials at UCR. It hasn't received any supplemental water since March 2020. Drought, heat, and pest resistant trees like these are being provided to residents free of charge through UCCE's partnership with IERCD and other local agencies and non-profits through the "Trees for Tomorrow" project.

ALT Photo of a "Red Push" Pistache tree doing great in our UC/USFS 'climate-ready landscape trees' trials at UCR. It hasn't received any supplemental water since March 2020. Drought, heat, and pest resistant trees like these are being provided to residents free of charge through UCCE's partnership with IERCD and other local agencies and non-profits through the "Trees for Tomorrow" project.

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Thank YOU for the privilege of participating. Great weekend! It was inspirational and motivating.
CA Urban Forests (@caufc) profile pictureCA Urban Forests@caufc9 Aug 2023
Thank You for an Incredible Conference! 🙌🌿💚 Thrilled to see you all @ Shades of Well-Being Conference. Huge thanks to the organizers; A-Plus, Tree Stuff, Bay Area Urban Forest Ecosystem Council, speakers, & attendees - you all made this a great day out. #ShadesOfWellBeing
Image from CA Urban Forests (@caufc)
Image from CA Urban Forests (@caufc)
Image from CA Urban Forests (@caufc)
Image from CA Urban Forests (@caufc)
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Kudos to the TreeTopia team, including Nancy Hughes, Executive Director of @caufc (California Urban Forests Council), for an amazing educational event on Mare Island over the weekend that included CEUs for arborist and lots of food trucks and family fun!
Photo of (right) Nancy Hughes, Executive Director of The California Urban Forests Council (CaUFC) and CaUFC Conference organizer, and (left) Janet Hartin, one of several speakers at the CaUFC Conference at TreeTopia.

ALT Photo of (right) Nancy Hughes, Executive Director of The California Urban Forests Council (CaUFC) and CaUFC Conference organizer, and (left) Janet Hartin, one of several speakers at the CaUFC Conference at TreeTopia.

Photo shows outdoor spaces at TreeTopia on Mare Island (near Vallejo, CA)

ALT Photo shows outdoor spaces at TreeTopia on Mare Island (near Vallejo, CA)

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Looking forward to seeing friends and colleagues and presenting a talk at CaUFC's "Treetopia"conference in Vallejo tomorrow. treetopiausa.com/schedule/ . Lots of activities for all! (See class schedule and check out outdoor activities in the tent).
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Artificial turf was 173 degrees F yesterday in Palm Springs. Plants cool the environment through transpiration and are a better choice. It's not too early to think about the perfect climate-resilient tree to plant this fall. Try one of these from our @ucanr/USFS study.
Photo showing surface temperature of tree-shaded artificial turf cooled down to 114 degrees F on 7/15/2023 in Palm Springs, CA

ALT Photo showing surface temperature of tree-shaded artificial turf cooled down to 114 degrees F on 7/15/2023 in Palm Springs, CA

photo showing temperature of unshaded artificial turf reaching 173 degrees F on 7/15/2023 in Palm Springs.

ALT photo showing temperature of unshaded artificial turf reaching 173 degrees F on 7/15/2023 in Palm Springs.

Image from Janet Hartin (@J_Hartin)
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Last day to apply for the @ucanr Environmental Horticulture advisor position in Placer and Nevada Counties: recruit.ucanr.edu/ and choose “applicants” (position #22-19). Help mitigate urban heat islands with drought, heat, pest and fire resistant plants.
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Great career position available! @ucanr Cooperative Extension Environmental Horticulture Advisor in Placer and Nevada Counties. Focus is on applied research/education to mitigate impacts of climate change in urban areas w/landscape plants. ucanr.edu/About/Jobs/?jobnum…
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Just another example of the @ucanr "from research to adoption" continuum at work: tree species from our UCANR/USFS climate-ready trial are cooling urban neighborhoods. @MGPSanBern volunteers provide tree care information as well as trees. Kudos to >30 community partners/sponsors.
Photos of climate-ready tree plot at UC Riverside 6/9/2023

ALT Photos of climate-ready tree plot at UC Riverside 6/9/2023

Photo of a load of "Maverick" mesquite trees ready to go to Joshua Tree, CA (a tree education/tree giveaway site).

ALT Photo of a load of "Maverick" mesquite trees ready to go to Joshua Tree, CA (a tree education/tree giveaway site).

Photo of a tree recipient in Joshua Tree loading a "Maverick" mesquite tree to take home to plant

ALT Photo of a tree recipient in Joshua Tree loading a "Maverick" mesquite tree to take home to plant

Photo of UC Master Gardener in San Bernardino County giving tree planting and care tips to tree recipients in Joshua Tree, CA (mesquite tree).

ALT Photo of UC Master Gardener in San Bernardino County giving tree planting and care tips to tree recipients in Joshua Tree, CA (mesquite tree).

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