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Reposted by Tree San Diego

Alexander S. Kunz Photography @alex-kunz.com · 4d

Meet Arctostaphylos glauca, commonly known as Bigberry Manzanita and, since the evening of October 9, California's new OFFICIAL STATE SHRUB! YES!!! 🤩

alexander-kunz.pixels.com/featured/man...

#Manzanita #Twilight #IntimateLandscape #SanDiego #Photography #Arctostaphylos

A vertical orientation color photo showing a gnarly shrub with grey and red bark reaching into the twilight sky.

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Tree San Diego @treesandiego.bsky.social · 4d

TSD's next Tree Treks is Saturday at La Mesita Park in La Mesa from 10 to 11:30 a.m. Join us for a guided walk where you can learn about the diverse tree species in your neighborhood, how to identify them & the role they play in creating a healthier, cooler, more climate-resilient community. #trees

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The Oak Project @jbobyak1.bsky.social · 5d

Put to the test: One of the ways to check if an acorn is a good candidate for propagation is the float test. When placed in water, more viable acorns will sink. Those that float have air pockets and are likely to have been damaged by insects like weevils. Discard floaters, keep sinkers. #oaks #trees

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Wildlife @worldwildlife.bsky.social · 7d

Acorn Woodpecker (Melanerpes formicivorus): This brilliantly coloured 21cm (8.3in) woodpecker species is native to forested areas with oaks from south west USA to Colombia. Remarkable photo by Jay Spring taken in Orange, California, USA. For more of Jay's shots see: www.springphotos.net #woodpecker

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Tree San Diego @treesandiego.bsky.social · 7d

Going green & thinking big: TSD kicks off "Plant-A-Thon" Friday at El Toyon Park in National City at 10 a.m. We'll plant 100 trees & aim to plant 1,000 across San Diego County over the next 10 weeks to celebrate our 11th anniversary. (Previous post had date right but day wrong; it's Friday) #trees

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Angela Sutton (she/her) @drangelasutton.bsky.social · 8d

There is a tree in Nashville that I'm pretty sure was pulled up into a tornado when it was a sapling, but it had strong roots and it survived. I visit it every time I'm at Centennial Park. When I first moved here, it was barely taller than me, and now it's an adult!

Catalpa Tree is TWISTED. Parthenon in the background.

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The Oak Project @jbobyak1.bsky.social · 10d

A trip to Pala Thursday yielded 516 viable acorns for propagation. Much thanks to Phil, one of The Oak Project’s biggest donors and supporters. The acorns were from coast live oaks (Quercus agrifolia); scrub oaks (pictured, Quercus berberidifolia); and Englemanns (Quercus engelmanni). #oaks #trees

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Tree San Diego @treesandiego.bsky.social · 13d

Join Tree San Diego Saturday at Kellogg Park in La Jolla for the annual Walter Munk Day celebration. The event raises awareness of the fragility of our oceans and showcases Kumeyaay heritage and culture. Stop by TSD's table to hear about what we're doing in the community. 9:30 a.m. to 4 p.m. #trees

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The Oak Project @jbobyak1.bsky.social · 14d

Kate Marianchild's "Secrets of the Oak Woodlands" examines the plants and animals that rely on this keystone species. The Oak Project's focus is restoring populations of Southern California's native oaks, preserving the woodlands' beauty and wonder for future generations. #trees #oaks

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Alexander S. Kunz Photography @alex-kunz.com · 21d

"Heart of Oak" for #TreeTuesday

Coast Live Oaks trunks appear to form the shape of a human heart with its chambers. Photographed at Los Peñasquitos Canyon Preserve, San Diego, California.

alexander-kunz.pixels.com/featured/hea...

#BlackAndWhite #Trees #SanDiego #CoastLiveOak #NaturePhotography

Square format black & white photo. The trunks of old oak trees form the shape of a human heart with its chambers.

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The Oak Project @jbobyak1.bsky.social · 26d

Our goal is to plant 20,000 oak seedlings in 2026. Donations, of acorns or money, will help us meet our target. It cost roughly $1.75 to raise each seedling. Contact Jim Crouch at [email protected] to give what you can and help repopulate native oaks in Southern California. #oaks #trees

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Tree San Diego @treesandiego.bsky.social · 28d

Our next Tree Trek (neighborhood walk) is Saturday at 10 a.m. at Colina Del Sol Park in City Heights. Learn tree ID and local programs from certified arborists as we walk the neighborhood. #trees

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Vesna @vesnavoice.bsky.social · 28d

My current view...🌱🍁🍂☀️

Garden view of palm plants, maple tree trunk and Japanese maple red foliage, blue sky

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Tree San Diego @treesandiego.bsky.social · Sep 11

Tree San Diego’s first-ever Plant-A-Thon is near!
Our goal is to plant & distribute 1,000 trees in 10 weeks. We kick things off Oct. 10 in National City.
The initiative spans San Diego County, bringing trees to neighborhoods that need them the most. Details: www.treesandiego.org/plantathon #trees

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Climatologist49 @climatologist49.bsky.social · Sep 5

This was the driest August for the Northeast (U.S.) since 1957. 🌵

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The Oak Project @jbobyak1.bsky.social · Sep 5

This massive oak near Santa Ysabel is likely more than 100 years old. Coast live oaks (Quercus agrifolia) & Engelmann oaks (Quercus engelmannii) can live more than 250 years. The photo is by The Oak Project founder Jim Crouch, who is dedicated to bringing native oaks back to So. Cal. #trees #oaks

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Climatologist49 @climatologist49.bsky.social · Sep 4

Fall, details later. 🍂

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Nature’s Eyes🌱 @see3trees.bsky.social · Sep 3

“Nope, not landing there—those bees already called dibs!” said the Tiger Swallowtail, flying past the thistle. #butterflies #pollinators #flowers #nature #EastCoastKin

A yellow tiger swallowtail with black vertical strips on its wings flies over a purple thistle flower with two bees on it.

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It's Winter from twitter 🌬🤍 @lda-farmgirl.bsky.social · Sep 3

Surprise! There's still a few blackberries!

Photo of a blackberry bush with ripe and unripe blackberries hanging on it.

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The Oak Project @jbobyak1.bsky.social · Sep 2

Besides serving as habitat for scores of insect, bird and mammal species, oaks contribute to soil health and water conservation. A mature oak can drop as many as 70,000 leaves a year, adding organic nutrients to the soil. #trees #oaks

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Tree San Diego @treesandiego.bsky.social · Sep 2

The Trump administration's proposed repeal of the "roadless rule" threatens America's national forests and the wildlife that live within them: act.defenders.org/page/87068/a... #trees

Our forests are in danger – speak out against repealing the “roadless rule”!

Send a message today urging the Trump administration not to strip our forests of vital protections by repealing the Roadless Rule!

act.defenders.org

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Tree San Diego @treesandiego.bsky.social · Aug 25

Several trees, including jacarandas, which are common on the streets of San Diego, are proving resilient to increasing heat in Australia. phys.org/news/2025-06... #trees

Jacaranda, black locust, London plane: Common street trees show surprising resilience to growing heat in Australia

As Australian cities heat up and dry out, street trees are emerging as frontline defenders of urban livability.

phys.org

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Alt National Park Service @altnps.bsky.social · Aug 25

On this day in 1916, President Woodrow Wilson signed the Organic Act, officially creating the National Park Service to protect and preserve America’s natural wonders and historic treasures “for the enjoyment of this and future generations.”

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Trees for Life @treesforlife.bsky.social · Aug 23

#Scotland’s large and graceful broadleaf: ash 🌳

Today, it faces a serious threat from #ash dieback, making its cultural and ecological importance more vital than ever.

Watch to explore its place in nature and myth.

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