Chapter Meetings & Events

Our events are announced at least 2 weeks in advance to our email list subscribers. To join our email list, please contact

Our activities are open to Chapter members as well as the general public, unless stated otherwise. If you’re interested in becoming a Chapter member, please view the Membership page. Yearly membership is just $30 for individuals, $15 for students, and $35 for families.

City Nature Challenge 2022: Greater Phoenix Area – April 29-May 2

Join the Phoenix Chapter in participating in the City Nature Challenge 2022!

From April 29th to May 2nd, use iNaturalist to document as many plants, animals, and other living things that you can find. Be sure to join the City Nature Challenge 2022: Great Phoenix Area project to see all of the observations made by you and others.

From May 3rd-8th, browse the project on iNaturalist to help to identify what others observed.

On May 9th, results will be announced. Prizes will be awarded by the local event organizers for the most observations made, most species observed, and most identifications made!

For more details, including participant information sessions and training events, please see the Greater Phoenix City Nature Challenge website.

Additional Events

View the AZNPS Events Calendar to learn about upcoming events hosted by other Chapters throughout the state. Also, recordings of many presentations are available to watch on the AZNPS YouTube page.


Join our virtual community!

To stay up to date on our meetings and other activities, please join our email list.

Follow the AZNPS Phoenix Chapter’s Facebook page for more information about local native plants news, research, and events!

We also invite you to follow our Chapter on Instagram and use the hashtag #aznativeplants to help us raise awareness of Arizona’s amazing native plants!



Join in on a wildflower walk!

Several local organizations host free or low-cost seasonal wildflower walks, interpretive hikes, and educational activities. Learn more by clicking on the links below.

McDowell Sonoran Conservancy

Maricopa County Parks & Recreation

Phoenix Parks & Recreation

Lost Dutchman State Park


Seeking native plants to use in landscaping?

Native Landscaping Plants

If you would like to learn which plants are native to our area, we invite you to view our Chapter’s List of Recommended Native Landscaping Plants (draft version). It highlights plants that are: 1) native to the Phoenix metro area, 2) beneficial to wildlife, 3) low-water-use, 4) relatively easy to care for, and 5) generally available at local nurseries or seed suppliers.

The AZNPS Grow Native resources provide additional information about landscaping with native plants, including planning your garden and pamphlets available to download.

Local Nurseries & Plant Sales

We’ve compiled a list of metro Phoenix nurseries that generally offer a selection of native plants. Some have more variety than others, and inventory changes frequently or may be seasonal. So, it is best to inquire with a few nurseries by phone or email to determine which one suits your needs. Due to precautionary measures currently in place, please contact a nursery directly to determine if they have special operating hours or procedures.

In addition, several organizations hold desert plant sale fundraisers in the Spring and Fall. We’ll update this announcement when additional local native plant sales take place.

Boyce Thompson Arboretum – Spring Plant Sale (Superior, AZ): March 11 (Arboretum members), March 12-27 (public). During the event, they are also accepting donations of used plastic pots which they will gladly reuse in their nursery.

Tohono Chul – Spring Plant Sale (Tucson, AZ): March 16 (Garden members), March 19-20 (public)

Butterfly Wonderland – Spring Plant Sale (Scottsdale, AZ): March 19-20

Center for Native and Urban Wildlife (CNUW) – Spring Plant Sale (Scottsdale Community College): March 31-April 1. During the event, they are also accepting donations of used pots (especially 1 gallon size) which they will happily reuse in their greenhouse.

Wildflower Seeds

Monsoon season and fall are terrific times to add wildflower seeds to your landscape, assuming it rains! For a wide variety of Arizona native plant seeds, we recommend the following sources:

Maricopa Native Seed Library – This new local project offers native seeds for free! Similar in format to other seed libraries, the public may obtain up to 3 seed packets per month. Available at several Maricopa Community Colleges libraries.

Little Free “Seed” Library – A Phoenix Chapter member offers free native plants and wildflower seeds as part of a Little Free Library in front of their home in Tempe.

Native Seeds/SEARCH – Purchase seeds online from their conservation farm in southern Arizona.

Borderlands Restoration Network – Purchase seeds online or visit their nursery in Patagonia.

If you feel there’s a local nursery, native plant fundraiser, or seed supplier we should add to our list, please let us know!


Additional Chapter Announcements

Invasive Species Alert: Fountain Grass

Fountain grass (Pennisetum setaceum) is a popular landscaping plant, but a dangerous invasive weed. Its seeds easily spread and invade roadsides, washes, and natural areas. As a result, Fountain grass pushes out native plants and wildlife, disrupts water flow and availability, and increases the risk and severity of wildfires. Therefore, it was listed as an Arizona noxious weed in early 2020 and is no longer sold by the nursery trade.

The Arizona Native Plant Society, along with several partners, created an informational pamphlet to help the community learn how to identify and control Fountain grass. Please download, read, and share this important information with others!

The Fountain grass pamphlet is available in two formats. The digital format is best for viewing electronically. The printable format is best for viewing as a tri-fold pamphlet. In addition, there is a Spanish version of the pamphlet.

Fountain grass is a popular landscaping plant, but a dangerous invasive weed. If you have it in your landscape, please remove it.

Chapter Leadership

Name Role Contact
Lisa Rivera President
Pam McMillie Vice President
Danielle Carlock Treasurer
Kathy Balman Secretary

Volunteering Opportunities

Want to get involved? We've got just the thing!

Outdoor Opportunities

If you are interested in volunteer activities related to restoration, invasive species control, gardening, conservation, or scientific research, we recommend contacting the following organizations.

Citizen Science Opportunities

These are citizen science and community science projects you can participate in on your own at home, during a walk in your neighborhood, or while visiting Arizona’s public lands.

Metro Phoenix EcoFlora

An iNaturalist project focused on plants found in urban environments. There are also monthly EcoQuest challenges that focus on certain species. Add your photo observations to the project. Or, if plant identification is your superpower, help to ID what others saw!

Nature’s Notebook

Document the seasonal changes in plants or animals near your home by becoming a USA – National Phenology Network observer.

Desert Defenders

A special initiative in metro Phoenix to identify and map invasive plants. There is also a special project dedicated to locating stinknet (Oncosiphon piluliferum/pilulifer).

Buffelgrass Green-up

Contribute invasive buffelgrass observations to the USA – National Phenology Network’s Buffelgrass Green-Up phenophase map.

Western Monarch Milkweed Mapper

If you see milkweed plants or monarch butterflies, eggs, or caterpillars while outdoors, take a photo and submit your sighting to this regional project.

Southwest Monarch Study

Monarchs need milkweed and nectar plants, so hopefully you have these growing in your yard or neighborhood! Join this monarch “tagging” project to help document Western monarch migration.


Native plants attract a variety of birds. Report the type of birds you see in your yard, neighborhood, or local park.

Bumble Bee Watch

Native flowering plants are essential for bumble bees. Help scientists track their populations by submitting photos of the ones you see.

If you have a rain gauge at home (or decide to purchase one), join this Arizona rainfall monitoring network to submit your daily rainfall totals.


Access digitized natural history data online to help transcribe and decipher field notebooks, photographs, museum labels, and data sheets from around the world.


Select from a variety of online projects to contribute to real academic research from your own computer.

Libraries as Hubs for Citizen Science

Visit one of six local libraries loaning out citizen science tools and supplies.

Chapter News

Happenings – Spring newsletter

Posted on Mar 02, 2022

The Spring 2022 edition of Happenings is now available! Download a copy to learn more about activities of Arizona Native Plant Society chapters around the state.

Plant Press Arizona – Winter edition

Posted on Feb 01, 2022

The Winter 2021 edition of Plant Press Arizona is now available to view or download for free from our website.

Read for an introduction to Arizona’s “lower plants” and plant-like wonders, including mosses, liverworts, fungi, lichens, and slime molds. You’ll also discover where to find them, so that you can look for them on your next excursion!

Past editions of Plant Press Arizona are also available to view or download from our online archive.

Be on the lookout for Stinknet!

Posted on Jan 04, 2022

Responding to the copious winter rains, Stinknet (Onchosiphon pilluliferum) is currently emerging in the Phoenix area. This annual plant emerges in winter and early spring when there has been moisture (either due to rain or irrigation). It goes to seed and dies starting in April, posing a fire risk.

Stinknet is an Arizona Noxious weed that has rapidly infested the Phoenix metropolitan area over the past 5 years. The Stinknet history in Arizona was recently published in Plant Press Arizona. You can also read more about Stinknet on our Invasive Plants web page.

AZNPS has produced a trifold printable brochure with descriptions of this invasive plant, its growth, and its control. Please review the brochure and then take action to help control the spread of Stinknet!

Stinknet emerging in a parking lot.
It is best to control Stinknet as soon it emerges, so the plant will not have a chance to go to seed.
Stinknet plant flowering.
Stinknet plant flowering. Photo credits: Lisa Rivera
These images by Sue Rutman will help you to properly identify Stinknet.

Comments and questions about Stinknet can be addressed to our Conservation Chair, John Scheuring, at


See what your chapter has been up to!