Invasive Plant Volunteer Events

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Saturday, October 17, 2026
Time: 7:00 AM - 11:00 AM

Organization: Sonoran Desert Weedwackers - Pima County CLR
Description: Join us for a beautiful morning of removing buffelgrass in Tucson Mountain Park! We will hike off trail to an area with buffelgrass plants, dig up the plants with hand picks and digging bars, and carefully pile the plants to decompose on site. Volunteers should be comfortable with physically strenuous work including hiking off trail up and down hills on rocky slopes. We'll provide snacks and drinks when we're finished.
Meeting Location: Details on the specific meeting location within Tucson Mountain Park will be sent a couple days ahead of time. Text or call Amanda if you haven't received an email with meeting location details. A bathroom may or may not be available depending on the meeting location.
Event location: Tucson Mountain Park,
Volunteers: 20 registered out of a total capacity of 20
Tools Provided: lightweight digging bars, rock picks, work gloves
Bring: water (2 liters), snacks, backpack, sunscreen
Wear: hiking boots or sturdy shoes, long pants, sun protection (hat, sunglasses, long sleeves)

Sunday, October 18, 2026
Time: 8:00 am - 12:00 pm

Organization: Arizona Sonora Desert Museum
Description: It is a beautiful time of year to be outside, so join us for a morning of digging out buffelgrass from Sentinel Peak Park. We will hike in a short distance to reach our site. All that attend will receive a very cool Save Our Saguaros sticker, and we will have muffins and fruit. Buffelgrass is an invasive, fire-prone grass that is a major threat to saguaros. That is why we are removing it.
Meeting Location: Sentinel Peak Park. Lower parking lot. There are no restrooms at the park, so plan.
Event location: 1001 Sentinel Peak Rd., Tucson, AZ 85745
Volunteers: 1 registered out of a total capacity of 30
Tools Provided: We have rock hammers, digging bars and gloves.
Bring: Bring a refillable water bottle (FULL) and a snack, and a pack to carry everything in. We strongly encourage the use of non-disposable water bottles as a pro-environmental measure
Wear: Wear good hiking shoes, long pants, a long-sleeved shirt, a hat, sunglasses and sunscreen.

Wednesday, October 21, 2026
Time: 7:00am - 10:00am

Organization: Sonoran Desert Weedwackers
Description: Join us for a morning of removing invasive grasses and spreading seed balls at Colossal Cave Mountain Park. We'll be hiking off trail and using hand picks and digging bars to remove Tickgrass and Buffelgrass. We will also spread seedballs to help promote revegetation of native plants. Volunteers should be comfortable with physically strenuous outdoor work. We'll return to our meeting spot at 10am and enjoy some snacks and drinks together.
Meeting Location: We will meet at the main parking lot of Colossal Cave Mountain Park near where the cave tours take place. When you enter the park on Colossal Cave Rd, continue straight and follow the road up to the paved parking lot.
Event location: 16721 E Old Spanish Trail, Vail, AZ 85641
Volunteers: 7 registered out of a total capacity of 20
Tools Provided: lightweight digging bars, rock picks, work gloves, seed balls
Bring: water (2 liters), snacks, backpack, sunscreen
Wear: hiking boots or sturdy shoes, long pants, sun protection (hat, sunglasses, long sleeves)

Wednesday, October 21, 2026
Time: 7:00am - 11:00am

Organization: Town of Marana Parks and Recreation
Description: Join the Space Invaders volunteer program and help our Natural Resources team combat invasive plants in our open space parks! Volunteers will work alongside experts to identify and remove non-native species that threaten the health of our local ecosystems. This hands-on experience not only contributes to preserving the natural beauty and biodiversity of our parks but also provides a unique educational opportunity to learn about native flora and the impacts of invasive plants. Be a part of this vital effort to protect and restore our cherished green spaces while connecting with nature and like-minded community members. Ages 16 and Up
Meeting Location: Meet at the Wild Burro Trailhead 14810 N Secret Springs Dr, Marana, AZ 85658. Just up the road from the Ritz-Carlton attendant shack.
Event location: 14810 N Secret Springs Dr. , Marana, AZ 85658
Volunteers: 3 registered out of a total capacity of 10
Tools Provided: Yes
Bring: Water, snacks, sun protection
Wear: Long sleeves, long pants, closed toe shoes
Additional Information: Some hiking with elevation gain is likely.

Saturday, October 24, 2026
Time: 7:30am - 10:00am

Organization: UA Pima County Cooperative Extension
Description: Come join us in removing invasive buffelgrass from the Pantano Wash! We will take a short walk from the Kolb Executive Park into the wash, where we will begin our work. Terrain may be uneven and desert plants can be pokey. After the event, snacks and drinks will be provided back at the parking lot.
Meeting Location: Kolb Executive Park - specific end of parking lot to be determined closer to the event
Event location: 1600 N Kolb Rd, Tucson AZ 85715
Volunteers: 3 registered out of a total capacity of 30
Tools Provided: Yes
Bring: Water, snacks, backpack, sunscreen
Wear: Long sleeves, long pants, hat

Wednesday, October 28, 2026
Time: 7:00 AM - 11:00 AM

Organization: Sonoran Desert Weedwackers
Description: Join us for a beautiful morning of removing buffelgrass in Tucson Mountain Park! We will hike off trail to an area with buffelgrass plants, dig up the plants with hand picks and digging bars, and carefully pile the plants to decompose on site. Volunteers should be comfortable with physically strenuous work including hiking off trail up and down hills on rocky slopes. We'll provide snacks and drinks when we're finished.
Meeting Location: Details on the specific meeting location within Tucson Mountain Park will be sent a couple days ahead of time to everyone who has signed up. A bathroom may or may not be available depending on the meeting location.
Event location: Tucson Mountain Park,
Volunteers: 1 registered out of a total capacity of 20
Tools Provided: lightweight digging bars, rock picks, work gloves
Bring: water (2 liters), snacks, backpack, sunscreen
Wear: hiking boots or sturdy shoes, long pants, sun protection (hat, sunglasses, long sleeves)

Wednesday, November 4, 2026
Time: 8:00 AM - 12:00 PM

Organization: Sonoran Desert Weedwackers - Pima County CLR
Description: Join us for a beautiful morning of removing buffelgrass in Tucson Mountain Park! We will hike off trail to an area with buffelgrass plants, dig up the plants with hand picks and digging bars, and carefully pile the plants to decompose on site. Volunteers should be comfortable with physically strenuous work including hiking off trail up and down hills on rocky slopes. We'll provide snacks and drinks when we're finished.
Meeting Location: Details on the specific meeting location within Tucson Mountain Park will be sent a couple days ahead of time. Text or call Ellie if you haven't received an email with meeting location details. A bathroom may or may not be available depending on the meeting location.
Event location: Tucson Mountain Park,
Volunteers: 1 registered out of a total capacity of 20
Tools Provided: lightweight digging bars, rock picks, work gloves
Bring: water (2 liters), snacks, backpack, sunscreen
Wear: hiking boots or sturdy shoes, long pants, sun protection (hat, sunglasses, long sleeves)
Additional Information: Our volunteer event is usually on the 2nd Wednesday of the month, but this year that falls on a holiday (Veteran's Day). That's why we have this event on the 1st Wednesday instead of the 2nd Wednesday.

Friday, November 6, 2026
Time: 9:00am-2:00pm

Organization: Arizona-Sonora Desert Museum
Description: We will be visiting multiple locations along General Hitchcock Highway on Mt Lemmon to monitor and remove yellow bluestem, spotted knapweed and dalmatian toadflax infestations. These are listed Arizona noxious weeds that are not yet fully established on Mt Lemmon. Come learn to identify and remove them and help preserve the biodiversity of our National Forests. Early detection and rapid response is the way to go!
Meeting Location: Desert Research Learning Center in Saguaro National Park East
Event location: 12661 East Broadway Boulevard, Tucson, AZ 85748
Volunteers: 1 registered out of a total capacity of 10
Tools Provided: A few hula hoes, some light hand tools, gardening and disposable gloves, contractor trash bags,
Bring: Drinking water, your favorite hand weeding tool, a light bag lunch and/or snack
Wear: Comfortable desert gardening clothes, closed shoes, sun protection
Additional Information: We will be meeting at the DRLC in the morning to sort out carpooling arrangements. Please let us know if you would prefer to join us on Mt Lemmon instead and we can set up a meeting point. This is a mobile event so don't expect to be able to find us without prior coordination. Expect network reception is unreliable to nonexistent at times.

Friday, November 6, 2026
Time: 7:00am - 12:30pm

Organization: Saguaro National Park
Description: First Fridays are back in season! Join us for a fun and fulfilling morning pulling buffelgrass near the Visitor Center in Saguaro National Park West District. We will be hiking roughly a mile to a location where we will spend the event pulling buffelgrass, enjoying the company of each other and learning about the wonders of the Sonoran Desert we are protecting from invasives! Snacks and water provided.
Meeting Location: Saguaro National Park West Visitor Center area, *Specific meeting location will be sent prior to event.
Event location: 2700 N Kinney Rd, Tucson, AZ 85743
Volunteers: 6 registered out of a total capacity of 15
Tools Provided: Picks, gloves, eyewear
Bring: water (2-3 liters), snacks, backpack, sunscreen, smiles
Wear: sturdy shoes, sun protection: hat, sunglasses, long sleeves
Additional Information: This event is a part of our First Friday Fiesta series where every first Friday of the month we will have a buffelgrass pull event on the West district of Saguaro National Park. Running from late fall to early spring.

Saturday, November 7, 2026
Time: 8 am- 12noon

Organization: Catalina State Park Buffel Slayers
Description: Fall weather is here and it is time to get back outside and do some digging! The Park is green and so is the buffelgrass. Let's dig it while the soil is moist and before it goes to seed. Admire the majestic views of Pusch Ridge, marvel at the size of the saguaros, and meet new friends!
Meeting Location: Meet at the Equestrian Center in the Park. At the entry station, get in for free to dig buffelgrass. Proceed to first left after the big wash crossing. Drive past the camping loops to the end of the road. Park on the left. Meet group on the right in picnic area at the trailhead of the 50 Year Trail.
Event location: 11570 N. Oracle Rd. , Tucson, AZ 85737
Volunteers: 6 registered out of a total capacity of 30
Tools Provided: Pick-mattocks, digging bars, hand picks, gloves, kneeling mats
Bring: 2 Liters of water, energy snacks, sunscreen, and your own work gloves and trekking poles, if preferred
Wear: Long pants, long sleeved shirt, hat, sturdy shoes or boots
Additional Information: Be prepared to hike uphill for over a mile and work off-trail on uneven, rocky slopes. Email me in advance for a waiver form for participants under 18. We have colorful stickers for all participants and T-shirts for those who have attended 5 total events. We hope to have our baby saguaro raffle again this year.

Wednesday, November 18, 2026
Time: 7:00am - 11:00am

Organization: Town of Marana Parks and Recreation
Description: Join the Space Invaders volunteer program and help our Natural Resources team combat invasive plants in our open space parks! Volunteers will work alongside experts to identify and remove non-native species that threaten the health of our local ecosystems. This hands-on experience not only contributes to preserving the natural beauty and biodiversity of our parks but also provides a unique educational opportunity to learn about native flora and the impacts of invasive plants. Be a part of this vital effort to protect and restore our cherished green spaces while connecting with nature and like-minded community members. Ages 16 and Up
Meeting Location: Meet at the Wild Burro parking Lot 14810 N. Secret Springs Drive. The parking lot is just up the road past the Ritz-Carlton attendant shack.
Event location: 14810 N Secret Springs Dr. , Marana, AZ 85658
Volunteers: 4 registered out of a total capacity of 10
Tools Provided: Yes
Bring: Water, snacks, sun protection
Wear: Long sleeves, long pants, closed toe shoes
Additional Information: Some hiking and elevation gain is likely.

Saturday, November 21, 2026
Time: 8:00 AM - 12:00 PM

Organization: Sonoran Desert Weedwackers - Pima County CLR
Description: Join us for a beautiful morning of removing buffelgrass in Tucson Mountain Park! We will hike off trail to an area with buffelgrass plants, dig up the plants with hand picks and digging bars, and carefully pile the plants to decompose on site. Volunteers should be comfortable with physically strenuous work including hiking off trail up and down hills on rocky slopes. We'll provide snacks and drinks when we're finished.
Meeting Location: Details on the specific meeting location within Tucson Mountain Park will be sent a couple days ahead of time. Text or call Ellie if you haven't received an email with meeting location details. A bathroom may or may not be available depending on the meeting location.
Event location: Tucson Mountain Park,
Volunteers: 1 registered out of a total capacity of 20
Tools Provided: lightweight digging bars, rock picks, work gloves
Bring: water (2 liters), snacks, backpack, sunscreen
Wear: hiking boots or sturdy shoes, long pants, sun protection (hat, sunglasses, long sleeves)
Additional Information: Our volunteer group works every 2nd & 4th Wednesday of the month and every 3rd Saturday of the month. Wednesdays tend to include more challenging terrain and/or further hikes.

Wednesday, November 25, 2026
Time: 8:00am - 12:00pm

Organization: Saguaro National Park
Description: Join us at Saguaro National Park for a fun and fulfilling morning pulling buffelgrass. Tis the season of gratitude and what a better way to take care of the land that gives us so much. We will be hiking roughly a mile to a location where we will spend the event pulling buffelgrass, enjoying the company of each other and learning about the wonders of the Sonoran Desert we are protecting from invasives! Snacks and water provided.
Meeting Location: Details on the specific instructions for the meeting location will be sent a week prior to event to those who have signed up. A bathroom may or may not be available depending on the meeting location.
Event location: Saguaro National Park East, *Specific meeting location to be sent prior to event
Volunteers: 3 registered out of a total capacity of 15
Tools Provided: picks, gloves, eyewear
Bring: water (2-3liters), snacks, backpack, sunscreen
Wear: sturdy shoes, sun protection: hat, sunglasses, long sleeves

Wednesday, November 25, 2026
Time: 8:00 AM - 12:00 PM

Organization: Sonoran Desert Weedwackers - Pima County CLR
Description: Join us for a beautiful morning of removing buffelgrass in Tucson Mountain Park! We will hike off trail to an area with buffelgrass plants, dig up the plants with hand picks and digging bars, and carefully pile the plants to decompose on site. Volunteers should be comfortable with physically strenuous work including hiking off trail up and down hills on rocky slopes. We'll provide snacks and drinks when we're finished.
Meeting Location: Details on the specific meeting location within Tucson Mountain Park will be sent a couple days ahead of time. Text or call Ellie if you haven't received an email with meeting location details. A bathroom may or may not be available depending on the meeting location.
Event location: Tucson Mountain Park,
Volunteers: 0 registered out of a total capacity of 20
Tools Provided: lightweight digging bars, rock picks, work gloves
Bring: water (2 liters), snacks, backpack, sunscreen
Wear: hiking boots or sturdy shoes, long pants, sun protection (hat, sunglasses, long sleeves)
Additional Information: Our volunteer group works every 2nd & 4th Wednesday of the month and every 3rd Saturday of the month. Wednesdays tend to include more challenging terrain and/or further hikes.

Friday, December 4, 2026
Time: 8am to 12pm

Organization: Saguaro National Park
Description: Join us for a fun and fulfilling morning pulling buffelgrass near the Visitor Center in Saguaro National Park West District. We will be hiking roughly a mile to a location where we will spend the event pulling buffelgrass, enjoying the company of each other and learning about the wonders of the Sonoran Desert we are protecting from invasives! Snacks and water provided.
Meeting Location: Saguaro National Park West Visitor Center area, *Specific meeting location will be sent prior to event.
Event location: 2700 N Kinney Rd, Tucson, AZ 85743
Volunteers: 0 registered out of a total capacity of 15
Tools Provided: picks, gloves, eyewear
Bring: water (2-3liters), snacks, backpack, sunscreen, smiles
Wear: sturdy shoes, sun protection: hat, sunglasses, long sleeves
Additional Information: This event is a part of our First Friday Fiesta series where every first Friday of the month we will have a buffelgrass pull event on the West district of Saguaro National Park. Running from late fall to early spring.

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