Grow Milkweed Plants

In support of growing milkweed plants I am sharing the value that native milkweed has for monarch butterflies. Your host, Brad Grimm, created a website dedicated to education about milkweed. Visit Get started taking action to find and grow milkweed. I'll warn you in advance, you may fall in love with this plant. The podcast dedicated to all things milkweed related. Topics include Asclepias, Monarch butterflies, milkweed, gardening and pollinators.
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Jan 12, 2018

Winter sown. Garden grown. Use milk jugs to grow milkweed plants starting in the winter.

Grow Milkweed Plants podcast - Season 3 Episode 2

Step two of winter sowing milkweed seeds in a one gallon greenhouse.

My YouTube video link:

How many monarch butterflies in the western population? See for yourself at Numbers should be released very soon. The 2017 Western Monarch Thanksgiving Count runs November 11th - December 3rd and the second annual New Year's Count runs December 30th - January 14th.

The November 9th blog by Pacific Grove Museum said the arrival of the monarch butterflies at their location was slower and with lower numbers then in years past. What does that mean for the western population as a whole?

Monarch Butterfly Flight Challenge: Monarch Butterfly Fund Issues Technology Design Challenge to Solve Mystery of Monarch Butterfly Migration Inventors invited to participate in $50,000 challenge to create new tracking device. 

Milkweed Madness registration is going to open in February. Stay tuned for more information about how to win wonderful prizes thru this free giveaway. If you are interested in donating seeds or milkweed related products as prizes then contact Brad G at and use "milkweed swag" as the subject.

Host: Brad Grimm

Intro Music: sunny -

Outro Music: acusticbreeze -

Oct 26, 2017

Sorry for the long delay between episodes. I'm back and this episode is full of awesome content that will get you thinking about and growing milkweed plants.

Episode timeline...


NRCS.USDA.GOV link to Regional Pollinator Efforts - Monarch Butterfly NRCS encourages farmers to plant pollinator strips to help the monarch butterfly. Seeds recommended included eight species of native milkweed which would directly make a positive contribution to monarch butterfly habitat.


Featured news story: Destructive weed threatens U.S. corn fields Seeds received, in some cases, contained the noxious invasive weed called Palmer Amaranth. The plant is resistant to herbicides which translates to increased application of herbicide to curb the plants spread.


Lets dig a little deeper with a popular news story this summer titled: Why planting milkweed won’t halt monarch butterfly decline by the Washington Post. With the context presenter earlier could increased herbicide use be a problem for the fall migratory monarchs?


Butterfly counts may be higher this summer based on observations in the northern breeding grounds. Monarch Butterflies Flying High This Year After Recent Declines


Local milkweed report. Hint, it was a good year!


The time for action is now. With my help, I will guide you thru the process of growing strong healthy beautiful milkweed plants. Your homework is to collect those one gallon and half-gallon milk jugs (or chocolate milk jugs). 


SAVE YOUR MILK JUGS! Next month we will use the plastic milk jugs as a tool to start growing milkweed plants in November. That's all for right now. As extra credit you can pick out your favorite milkweed. Click on your state, using this tool, to locate milkweed that is native to your area and follow the directions to find native milkweed.

"If it's good for the butterflies, it's good for me" -Brad G.

host: Brad Grimm

Detailed show notes :

May 31, 2017

Jewel milkweed. Join me as we go explore the plant in-person.

Host: Brad Grimm

May 24, 2017

Vocabulary word: Phenology

Cautionary tale of blindness. Milkweed sap poses a serious health risk to humans. Learn about the risks and how to safely work with milkweed.

Milkweed Madness 2017 winners have received their prizes. I'll tell you what the prizes were, who donated some of the prizes and what you can do to make Milkweed Madness even greater in 2018.

Monarch butterflies have advanced north and are passing thru southern Maine and have reached Canada, spread out around the great lakes region. Check out the observation by Jaremy in Harpswell, Maine.

Book recommendation - The MONARCH: Saving Our Most-Loved Butterfly by Kylee Baumle. The book is currently sold thru Amazon. Please visit my affiliate link to purchase the book. By using my link to purchase the book, I receive a small portion of your purchase, thank you. 

Host: Brad Grimm

Show notes will be published at

Mar 10, 2017

Vocabulary word: DIAPAUSE

Milkweed plant donation by Cat R of Green Thumb Gardnes, on Instagran @hbgtg or

REGISTER NOW FOR MILKWEED MADNESS 2017 (press and hold here for link)


Visit game registration closes on March 12 at midnight. 

host: Brad G.

Nov 23, 2016

Arizona Milkweed & the Queen Butterfly

Arizona has about thirty native milkweed species that are host to both the monarch butterfly and the queen butterfly. On episode 24 I take you to Rio Salado Habitat Restoration Area where I see my first Queen butterfly.

Locations visited:

Discover butterflies in the desert near Tucson by following Sergio Avila on twitter @savila2015

Host: Brad Grimm

Nov 4, 2016

In Australia the Wanderer Butterfly is found on the East coast from Brisbane thru Bundaberg.

Host: Brad Grimm

Music by Gary Thomas, Breath on the album Didgeridoo

Oct 25, 2016

Congratulations to my brothers family on the birth of their new baby Rosemarie Sarah Grimm! 

Peaces - Handmade jewelry & adornments with a nature-theme, perfect for wearing your essential oils!

How a Quebec company used a weed to create a one-of-a-kind winter coat

Support monarchs and the show by ordering milkweeds from Grow Milkweed Plants

View the complete Show Notes by pressing and holding here!

Host: Brad Grimm

Aug 28, 2016

The Biggest Little Butterfly Garden In The World has been raising and releasing the monarch butterfly since 2014.

In this episode you will hear:

  • Season start dates
  • Season totals (or totals to date)
  • Biggest single release date of the season
  • Learn about monarch tagging programs

Thank you for listening!

Host: Brad G. 

Follow on social media @growmilkweedplants


Aug 20, 2016

Monarch butterflies in the East are passing the 49º Latitude aka USA/Canada border and beginning the migration South toward Mexico. Learn where they will be in the next month and when they traditionally arrive in Mexico.

Tim Wong is saving the California Pipevine Swallowtail Butterfly by growing the host plant, California Pipevine. I travel to Golden Gate Park to meet Tim and learn about his amazing mission to preserve a rare butterfly species.

Monarchs may be in Newport Beach but its other bugs and birds that we meet as I take a bug walk with my seven year old neice Josephine.

Local Milkweed Report shows that the monarch butterfly has visited the butterfly garden.

View the complete show notes at

Host: Brad G.

Publish date 8/20/2016

Jul 19, 2016

Connect with Bryan Burks @BSburks who gave me a guided tour of the LA Arboretum @LAarboretum

Discover more about monarchs via Monarch Arc and read the story by the VC Reporter featuring Juliana Danaus. The story is - The butterfly effect

Featured song Chasing Butterflies by Karoline

Host: Brad G

Show brought to you by

Jun 20, 2016

Brad G. flys to Omaha Nebraska to discover that common milkweed is pretty common. 

Links mentioned in the show:



Raising Butterflies and Moths for Conservation

Show Notes are available  at

Host: Brad G.

Original publish date: 6/20/16

Jun 10, 2016

Milkweed at large, seeking out native milkweed in Washoe County, Nevada - 017

View the complete show notes page at

  • Invitation to the Grow Milkweed Plants facebook group
  • Local milkweed report
  • Monarch Passion tee shirt at (Milkweed Planter)
  • Mowing down a monarch and the apology
  • Traveling to Omaha, NE to search for milkweed

Outro music by Waylon Jennings, Omaha (affiliate download link)

@growmilkweed on twitter

growmilkweedplants on instagram

Host: Brad G.

May 13, 2016

1M Monarchs vs. a Mine, MexiRocks, Garden Vandalism & Jewel Milkweed - Episode 016

View complete show notes page:

Learn about the threat that could deplete the water supply for the Oyamel Fir trees resulting in massive habitat destruction of the habitat that the monarchs overwinter on in Mexico.

Learn how to order MexiRocks which directly support the citizens. MexiRocks is an alternative form of "butterfly tourism" that brings the monarch to your home or garden.

Read the entire story as published in the San Diego Union-Tribune. "Plants crushed, but not Conway School’s spirit. Community helps revive garden after vandalism"

Get up close to a wonderful, but rare, milkweed plant Asclepias cryptoceras that I discuss in great detail.

Host: Brad G.

Apr 5, 2016

Grow Milkweed Plants Podcast

Show notes:

  • Monarch deaths in Mexico on March 11, 2016
  • Cold moist stratification of milkweed seeds
  • Milkweed Madness 2016

Host: Brad Grimm

Mar 2, 2016

Host: Brad Grimm @growmilkweed

Content in this episode:

  • Eastern Monarch Population in Mexico 2015/2016
  • Milkweed Madness seed giveaway

If its good for the butterflies, it's good for me.

Featured song: The Great Monarch Migration

Visit "Milkweed Madness" free seed contest and enter to win!

Visit the page that accompanies this podcast episode for expanded notes.

Feb 11, 2016

GMP Podcast Episode 013 - "Western Monarch Butterfly Population 2015"

>page that accompanies this podcast

Featured content:

  • Western monarch population count is 271,924 butterflies.
  • Data collected at 187 overwintering locations from Mendocino county to San Diego county (most ever visited in one year).
  • New overwintering sites located in Alameda and Marin Counties.
  • Monarch breakup (think valentines day) marks start of spring migration.

Outro music bump by Jeff & Paige Mighty Wolf Album song Plant More Milkweed Please.

Download their entire children's album at

Host: Brad Grimm


Jan 25, 2016

GMP Podcast Episode 012 - "Braderfly at the Museum"

>page that accompanies this podcast

Featured content:

The nickname given to the host is revealed.

  • Recap of the conversation with Gail at the Pacific Grove Museum of Natural History.
  • Learn why there is no milkweed within ten miles of overwintering sites in Pacific Grove, CA.
  • Start your milkweed seeds now using a mini greenhouse like I am featuring on todays show!
  • Featured product: Gardman R687 4-Tier Mini Greenhouse Amazon's #1 Best Seller in the Greenhouses catagory.

Facebook Page:

Host: Brad Grimm


Jan 11, 2016

GMP Podcast Episode 011 - "Pacific Grove Monarchs"

>page that accompanies this podcast

Featured content: Monarch butterflies overwintering at Pacific Grove Monarch Butterfly Sanctuary and Cooper Cabin at Andrew Molera SP.

Featured products: Butterfly weed, Swamp milkweed and the groovy Pacific Grove Monarch sticker.

Host: Brad Grimm


Sep 11, 2015

If it's good for the butterflies; it's good for me.

Visit to find milkweed native to your area.

View the show notes page for this episode by pressing and holding this link:


Aug 5, 2015

August is peak breeding season for monarch butterflies. Milkweed is tall as your head. Caterpillars are chomping away at leaves. Start planning next year's butterly garden today. 

Facebook groups mentioned:

The Beautiful Monarch Open Group - Admin Holli Webb Hearn

Raising Butterflies and Moths for Conservation Closed Group - Admin Mona L. Miller

Grow Milkweed Plants Public Group - Admin (me) Brad Grimm

 Visit the show notes page for video of the monarch butterfly mentioned at the end of the eppisode.

Jul 5, 2015

Podcast brought to you by Brad Grimm at Grow Milkweed Plants

Sources for monarch research tags:

Monarch Butterflies of the Pacific Northwest This page includes the recovery of monarch tag #4130 that flew from Annabella in CA to Kendra in ID

Southwest Monarchs

Monarch Watch Tags ($15)

To find more information about the rearing cage that I am using to raise a monarch from egg to butterfly visit the Grow Milkweed Plants Resources Page

May 8, 2015

Monarch butterfly in my own backyard. Marine Monarchs is funded thru generous donation's including a match by Monarch Watch. Have you seen any monarchs this year? Milkweed is growing as the weather warms. Flowers are begining to bloom and the Spring migration of monarchs is reaching the Northern US. Continue the conversation at:

Apr 8, 2015

Texas Monarch Migration 2015

Migrating monarchs pass thru Texas in early spring. The Texas milkweed is super important and provides a habitat that allows the monarch to reproduce. If you would like to help this podcast then you can start by planting and growing a milkweed plant. More information is available at my website a link will be available in the show notes. I was tipped off about the swamp milkweed plant by an acquaintance on twitter who goes by @spiderwort52 spelled - s p i d e r w o r t 5 2 Needless to say it was nice to see the additional plant. Low and behold I saw a monarch butterfly scouting out the flowers. A few days later in San Antonio the reverse was true. It was pretty nice to see that the San Antonio River Authority milkweed garden was maintained and even more exciting to see the monarch caterpillar and eggs in a city park environment. I have found pretty good success with following milkweed observations using and do you grow and sell milkweed in a nursery business? Visit

Mar 26, 2015

Episode 005 show notes: Title March Monarch Madness 


Links mentioned in this episode: Find Milkweed for monarchs at: 

Grow Milkweed Plants website


Marine Monarchs:


Monarch Migration data:


The company jet: 

Southwest Airlines


On this podcast I will be talking about three main topics. Weather, Marine Monarchs and my upcoming trip to Austin.


Welcome to Grow Milkweed Plants podcast episode five. Today is March 26th 2015 and I am the host Brad Grimm. Thank you for joining me on todays wonderful podcast.


Spring is here, at least thats what our calendar are indicating. Based on a quick look at the 10-day forecast between the monarch biosphere preserve and the U.S. Border weather seems to be favorable for the 2015 spring migration. Winds are north at approximately 8 miles per hour in Mexico and north-northwest at 16 miles per hours in Austin. Longer range forecasted winds are light and variable with predominately north-west to easterly breezes. The temperatures between Rosario and the Monterrey range from 41º to 85º. Its very nice to see that a freeze is not in the forecast. Central to south Texas is slightly cooler but is trending toward warmer weather. Texas has had a bout of storms recently that yielded precipitation. The precipitation seems to be followed by warm weather and that is typical for spring. It should be very good for the milkweed plants that the monarchs will be searching for. 


The specific path along the Migration route is not clearly understood but funding is underway for monarch monitoring on oil rigs in the Gulf of Mexico. Monarchs may or may not intend on crossing the gulf and monarchs over the gulf could certainly become fatigued on that long flight. Monarchs can be blown into the gulf and monarchs have been seen resting on the oil rigs. Oil rigs may be an oasis for them to rest upon should the wind push them out over the water. One question that this study is looking to answer is at what frequency do the oil rigs host these overseas monarchs. There is a facebook group for the project that is called Marine Monarchs. Updates about funding and their progress will be available on their facebook page. I have no affiliation with the Marine Monarchs project but there is a good chance that I will make a small donation to the program. If you make a donation then Dr. Chip Taylor is matching your donation until half of the $8000 project goal is reach. Chip Taylor is matching up to $4000. But it's not really about the money. The project focuses on providing real time data about the monarchs migration pattern which can be compared to winds and weather to help everyone understand more about the amazing monarch migration. 


With Monarch Madness in full swing I am going "all in" with a trip to the great state of Texas! My wife and I are taking the company jet to Austin for the first week of April. Our hope is that the migrating monarchs will be traveling thru Austin at the same time that we are traveling to Austin. Despite the fact that I am setting my expectations very high I have some concern that they may not be there in the numbers that I am expecting. The odds of being there when the peak number of monarchs are traveling thru is about as likely as docking my model Estes rocket with the space station based on a gut feeling about where to point the rocket and when to initiate launch.   I hope I scheduled the right launch time and trajectory for the trip when I booked everything back in November of last year. 

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