Welcome to the MMWG Newsletter Archive
Want to keep up with monarch-related news and events in the Bay Area?
Check out this archive to find past issues of our monthly newsletter. Here’s what you can expect to find in each issue:
Announcements about upcoming garden tours, plant sales, and fieldtrips
Updates on local, state, and national efforts to support monarchs
Ideas for how you can get involved in habitat restoration, political advocacy, and community science
Read on to learn some highlights from the May newsletter.
Keep scrolling to find links to all previous 2026 newsletters.
May 2026 Newsletter
With the coming of spring, gardens are at their peak and teeming with butterflies, bees, birds and other creatures. Check out our May newsletter for details about the Eco-Friendly Garden Tour this Saturday May 9!
MMMG will have a table on May 9 at the Home Ground Habitats Nursery, one of the gardens on the tour. Stop by to say hello and pick up our some of our beautiful handouts out creating a native plant habitat for monarchs. And then wander through the demonstration garden featuring native and drought-tolerant Mediterranean flora!
The May Newsletter also describes a project by the River Partners to plant 15 million milkweed plants along a primary migration corridor extending from Redding and through the Imperial Valley almost to the Mexican border. Click here to read more about this ambitious project.
The green area in this map of California indicates the high priority early breeding zone for Western Monarchs. The blue-green and yellow areas show where River Partners have focused their restoration efforts since 1998, with yellow indicating areas where the most intensive work has occurred.
Click here to access the entire May Newsletter.
MMWG Newsletters from 2026
Click on each month to access a particular newsletter. In addition to listing upcoming events, each newsletter describes some of the latest research findings about monarchs.
Take action in March to help monarchs: Where to find seeds and seedlings
Results of Western Monarch count of overwintering monarchs
Paper showing that the characteristics of overwintering sites and climate are related to monarch overwintering abundance at Pismo Beach Grove
Results of Western Monarch count marks another low year at coastal overwintering sites
Recent research sheds light on how monarchs’ magnetic sense helps them migrate
Scientists use radio tags to unlock monarch butterfly migration clues
US Department of Interior Delays Monarch Butterfly Listing Under Endangered Species Act
Research on response of monarch butterflies to strong wind and implications for habitat restoration
Scientific journal retracts key paper claiming glyphosate not linked to cancer