Sourgrass Natural Dye Video Tutorial

There’s more to sourgrass than its lip-puckering powers. Dig a little deeper with this natural dye video tutorial.

Sourgrass (Oxalis sp.) is a plant of extremes: children love its strong flavor, pollinators gorge on its abundant nectar, many adore its ability to overwhelm a field when in bloom, and many still detest the invasive qualities of some of its species. Oxalis pes-caprae, native to South Africa, has made itself comfortably at home in California, forming dense mats that outcompete native plant species for light and space.

Whether you love it or can’t stand it, sourgrass has an interesting hidden quality that is both useful and exciting: it dyes fabric a vibrant, neon, highlighter-yellow color. Watch our video tutorial to learn how to play with its pigment and explore more resources below:

Post by Marisa. Explore other resources from The Museum At Your Side.

All Resources

Yvonne Byers painting a watercolor of a cactus

“The Museum At Your Side” is a collection of hands-on activities, informative articles, and engaging videos to connect you with nature and science wherever you are!

Below are all of our activities at a glance:

A Collection of Resources

4 blackbird eggs

We’ve compiled some of our favorite online resources for digging-deeper into natural history. From virtual tours of other natural history collections to digital field guides that can supplement your outdoor adventures, explore what our community (both local and global) has to offer!

Digital Field Guides

  • Animal Tracks: Nature Tracking compiles animal tracking resources in order to “make learning to identify animal tracks as easy and fun as possible.” We also have our own animal tracking activity, here.
  • Feathers: The Feather Atlas is an image database dedicated to the identification and study of the flight feathers of North American birds.
  • Amphibians: Get to know our slithery and slimy friends through AmphibiaWeb, an online field guide and database of amphibians.
  • Birds: Identify your backyard birds, keep track of what you observe, and get to know the many birds that you encounter any given day through the definitive resource for birds and bird watching in North America — the Cornell Lab of Ornithology and their Merlin Bird ID app.
  • Marine Animals: The Marine Species Identification Portal offers information on thousands of different species in the world’s oceans and seas.

Digital Databases, Virtual Tours, and More

  • Biodiversity Heritage Library: An open access digital library for biodiversity literature and archives. BHL’s global consortium of natural history, botanical, and research libraries cooperate to digitize and make their collections accessible as a part of a global “biodiversity commons.”
  • Cloud Appreciation Society: Get a little poetic about nature and explore the Cloud Appreciation Society who urge you to “Look up, marvel at the ephemeral beauty, and always remember to live life with your head in the clouds!”
  • National Parks: Maybe your vacation was postponed, but you can still explore our National Parks through these virtual tours.
  • Duke University: A database of 3D images of specimens for “Educators Organizing Online Courses Using Biological Specimens.”
  • The American Museum of Natural History: AMNH hosts a long list of activities, articles, videos and more, for educators, families, students, and anyone interested in teaching or learning about science.
  • Brains On: An award-winning science podcast for kids and curious adults from American Public Media.
  • NASA: A vast collection of images, videos, and articles all about space.
  • Smithsonian Museum of Natural History: Virtual tours of the museum and its collections.

Local Resources

Post by: Marisa

4/4 The Art of Nature: First Friday

Get to know Santa Cruz’s WILD SIDE at the Museum of Natural History! Nerd out on your night out during monthly after-hours events, featuring rotating themes, vendors, and activities. FREE admission to the Museum all day 11 a.m. to 8 p.m., with special festivities from 5 – 8 p.m.

Just like mixing a palette, we are blending art with science at April’s First Friday. To celebrate the 36th year of the Museum’s Art of Nature scientific illustration exhibition, we are inviting you to a special after-hours event to meet the local artists who are expressing the distinctiveness of Santa Cruz’s wildlife on canvas. In this year’s exhibit, you will be moved by masterpieces from 46 artists, in a wide array of artistic media, as well as having the opportunity to connect with the artists’ other works at their gardenside booths.

In addition to the exhibit, you will engage with California State University Monterey Bay’s Science Illustration Program, from where many of the featured artists graduated, explore items from the artists in the Museum’s Gift Shop, learn about this month’s art workshops and lectures, enjoy an open bar, food trucks, and much more. You won’t want to BRUSH off this First Friday!

📆 Friday, April 4th, 2025

⏱️ 5 – 8 p.m.

📍 Santa Cruz Museum of Natural History
1305 East Cliff Drive, Santa Cruz, CA 95062

Exhibit Artists & Community Partners

  • California State University Monterey Bay’s Science Illustration Program
  • El Pajaro Valley Incubator Kitchen
  • Alyssa Colasanti
  • Andrea Dingeldein
  • Anela Mendoza
  • Anna Pedersen
  • Arin Vasquez
  • Avalon Conklin
  • Brett Bell
  • Brittany Costanzo
  • Brynna Reilly
  • Cady DeLay Calene
  • Luczo Fletcher
  • Chloe Rickards
  • Claudia Stevens
  • Elizabeth Romanini
  • Erin E. Hunter
  • Erin Ellis
  • Evelyn Lam
  • Gianna Nourok
  • Hannah Caisse
  • Kaelin O’Hare
  • Karina Neeley
  • Katie McCullough
  • Khenya Clark
  • Kiwi (Catherine) Cyr
  • Kylene Gilmore
  • Lauren Ringelman
  • Maia Perry
  • Mari Stauffer-Howard
  • Maria Amorette
  • Klos Maria
  • Cecilia Freeman
  • Mason Schratter
  • Megan Gnekow
  • Michelle Waters
  • Molly Brown
  • Natalie Chan
  • Nicholas Ta
  • Nina Lutz
  • Rachel Diaz-Bastin
  • Reid Psaltis
  • Sami Chang
  • Sarah Brothers Bot
  • Suzanne Clark
  • Tina Curiel
  • Tina Fuller Somers
  • Torie Robinson
  • Vance Lawry

Accessibility

🔵 Drop by anytime 5-8 p.m. to join the festivities!

🟠 Admission to the Museum is free all day from 11 a.m. to 8 p.m.

🔵 Follow the latest guidelines for health and safety.

🟠 Restrooms and water fountains are available inside the Museum.

🔵 Booths and activities will be both indoors and outdoors.

3/29 Horticulture Workshop: Living Springtime Wreath

Let’s get festive with native flowers, succulents, and air plants! 

Celebrate Springtime and the wonder of wildflowers by crafting a living botanical wreath. This course will satisfy both plant and art lovers alike; learn the science of epiphytes while you design and mount native flowers, succulents, and air plants. Create a masterpiece for your seasonal decor or a treasured gift for a friend or family member, all wrapped up in a fun activity that brings the beauty of the outside, inside. 

Gardening gloves recommended. You will be working with live plants, wire, and gardening tools. Feel free to also bring hand pruners and/or safety glasses.  

No prior experience required. Participants will have a completed piece to take home at the conclusion of the workshop. Open to ages 16+/all experience levels. All supplies included.

📆 Saturday, March 29th

⏱️ 10 a.m. – 12 p.m.

📍 Santa Cruz Museum of Natural History

1305 East Cliff DR, Santa Cruz, CA 95062

Materials Fee: All supplies are included in class fee. Participants are welcome to bring their own gardening supplies.

Class Fee: $39 – Museum Members receive a special discounted price applied at checkout.

Instructor: Dion Shattuck – SCMNH Horticulturalist 

What to Expect

🔵 This class takes place outside, so please dress appropriately for the weather.

🟠 Supplies may get messy, so casual attire is recommended.

3/28 Member Opening Reception: The Art of Nature

Join us for the exclusive opening of our beloved, annual exhibit, The Art of Nature! Scientific illustration brings to life the wonders of nature, from diminutive sea slugs to entire ecosystems. Explore the beauty and fine details of the world around us in the special exhibit featuring works from 46 local artists in a variety of mediums, all sure to inspire curiosity and deepen connections with science and nature. The Museum has been exhibiting science illustration since 1989 and this beloved annual show is guaranteed to appeal to lovers of both science and art.

📆 Friday, March 28th, 2025

⏱️ 6 – 8 p.m.

📍 Santa Cruz Museum of Natural History
1305 East Cliff Drive, Santa Cruz, CA 95062

FREE Exclusive Exhibit Opening
Registration is required.

Not yet a Member? Join today!

About the Exhibit

Scientific illustration brings to life the wonders of nature, from minute zooplankton to extinct megafauna. Explore the beauty and fine details of the world around us in the special exhibit featuring works from 46 local artists in a variety of mediums, all sure to inspire curiosity and deepen connections with science and nature. The Museum has been exhibiting science illustration since 1989 and this beloved annual show is guaranteed to appeal to lovers of both science and art. On view March 28th – June 8th, 2025.

Artwork by: Maria Amorette Klos, 2024

The Art of Nature is supported by

3/26 Plein Air in Plain Sight – The Legacy of Santa Cruz Nature Painting 

Santa Cruz has been an outdoor painting hotspot since the 1890’s, well-known across the nation as a destination for exploring art while surrounded by nature. In fact, the Seabright Community in particular has been an artistic hub for plein air painters for over a hundred years and continues to have a robust presence even today.

Join Kathleen Aston, the Museum’s Collections Manager, as she opens the vault to spotlight rare art from the Museum’s historic archives and Taylor Seamount, a local plein air artist trailblazing the contemporary nature painting movement. You won’t want to miss experiencing this living timeline of Santa Cruz’s art scene.

📆 Wednesday, March 26th

⏱️ 6 – 8 p.m.

📍 Santa Cruz Museum of Natural History
1305 East Cliff Drive, Santa Cruz, CA 95062

Light refreshments will be served prior to the start of the program.

Class Fee: $11 – Museum Members receive a special discounted price applied at checkout.

Instructor: Kathleen Aston, Collections Manager at the Santa Cruz Museum of Natural History, & Taylor Seamount, local artist/activist/instructor 

About the Instructors

Kathleen Aston, Collections Manager at the Santa Cruz Museum of Natural History

As Collections Manager, Kathleen Aston is responsible for the physical and intellectual organization and preservation of the Museum’s collections. She joined the museum’s staff as collections specialist in 2017, and holds a B.A. in Linguistics from Reed College and a Master’s of Library and Information Science from the University of Washington. Kathleen is fascinated by the informational life of collections and how they anchor people to an understanding of the natural world. Her other interests include coffee, stargazing, weird plants, animals that look like blobs, and the repair and reuse sections of the waste management cycle.

Website: taylorseamount.com

Instagram: @taylorseamount

Taylor Seamount, local artist/activist/instructor 

Growing up in the natural beauty of Santa Cruz, CA, Taylor was set on a winding path between science and art. She received her bachelors in biochemistry at UC Davis and later spent two years at the Mark Kang-O’Higgins Modern Painting Atelier in Seattle. After the atelier, Taylor moved back home to Santa Cruz due to a worsening of her invisible disability, POTS. Adapting to her new limitations, Taylor’s artistic practice refocused from large imaginative realist oil paintings to small works in gouache. She came to aspire to the visionary landscape styles of gouache illustrators, James Gurney (Dinotopia) and Kazuo Oga (Studio Ghibli), and accordingly began to study natural color and light through plein air (i.e. painting landscapes on location outdoors). As plein air became central to her creative practice, she developed a distinctive crisp flat-brush style. Additionally, she began a successful business designing and selling her own unique ultra-light-weight plein air sketch easels, fabricated here in Santa Cruz. As a UC Certified California Naturalist and climate justice artivist, Taylor uses plein air and solar punk illustration to envision a regenerative future for her community. In this work, she often collaborates with local activists and environmental stewards. Hobbies not yet incorporated into her work are napping and saying hi to the native plants that are walking distance from her house. Her pronouns are both they/them and she/her.  

[Sold Out] 3/23 Intro to Plein Air Painting – Sandhills

Go outside and learn to paint gouache and watercolor landscapes while surrounded by nature as inspiration. This open-air art workshop will teach the techniques necessary to capture environmental perspectives through the creative use of negative space, layering, various stroke techniques, and more.

Using the Museum’s exclusive access to various vistas as reference, participants will be guided through the basics of transferring the beauty of beaches and shorelines to canvas with step-by-step instruction.

No prior experience required. Participants will have a completed art piece to take home at the conclusion of the workshop. Open to ages 16+/all experience levels. All supplies included.

📆 Sunday, March 23rd

⏱️ Noon – 3 p.m.


Location:  To be released closer to the date of the program, with the goal of featuring seasonal environments.
Class Size: 18 Students
Class Fee: $43 – Museum Members receive a special discounted price applied at checkout.
Materials:  All supplies are included in the class fee.
Instructor: Taylor Seamount

This class takes place outside; dress appropriately for the outdoors. Supplies may get messy, so casual attire is recommended.

About the Instructor

Website: taylorseamount.com

Instagram: @taylorseamount

Growing up in the natural beauty of Santa Cruz, CA, Taylor was set on a winding path between science and art. She received her bachelors in biochemistry at UC Davis and later spent two years at the Mark Kang-O’Higgins Modern Painting Atelier in Seattle. After the atelier, Taylor moved back home to Santa Cruz due to a worsening of her invisible disability, POTS. Adapting to her new limitations, Taylor’s artistic practice refocused from large imaginative realist oil paintings to small works in gouache. She came to aspire to the visionary landscape styles of gouache illustrators, James Gurney (Dinotopia) and Kazuo Oga (Studio Ghibli), and accordingly began to study natural color and light through plein air (i.e. painting landscapes on location outdoors). As plein air became central to her creative practice, she developed a distinctive crisp flat-brush style. Additionally, she began a successful business designing and selling her own unique ultra-light-weight plein air sketch easels, fabricated here in Santa Cruz. As a UC Certified California Naturalist and climate justice artivist, Taylor uses plein air and solar punk illustration to envision a regenerative future for her community. In this work, she often collaborates with local activists and environmental stewards. Hobbies not yet incorporated into her work are napping and saying hi to the native plants that are walking distance from her house. Her pronouns are both they/them and she/her.  

3/22 – Behind-the-Scenes at a National Monument: A Cotoni-Coast Dairies Tour

Don’t miss this special, limited-time opportunity for a private guided tour of the Cotoni-Coast Dairies National Monument – before it’s even open to the public! 

Guided by land stewards and environmental scientists from the Bureau of Land Management, learn what it took to designate a National Monument, the history of the land, and observe all the wildlife of the Cotoni-Coast Dairies. Participants will learn about the future of the property, current restoration projects, conservation efforts, indigenous partnerships, and all the steppes required to get to where we are today.

📆 Saturday, March 22nd

⏱️ 9 a.m. – 12 p.m.

📍 The property is currently closed to the general public.

The address will only be disclosed to registered participants.

Materials Fee: All supplies are included in class fee. Participants are welcome to bring their own gardening supplies.

Tour Fee: $39 –Youth(14-18): $39 / Adult: $46 – Museum Members receive a special discounted price applied at checkout.

Instructors: Lee Thompson, Stephen Sheeter, and Adam Wilde – Bureau of Land Management

What to Expect

🔵 Exact meet-up location will be shared upon registration. 

🟠 Terrain is varied, but not extreme. Expect a moderate hike, at a leisurely pace.  

🔵 Binoculars and cameras are optional, but recommended. 

🟠 There are limited facilities at this location. 

🔵 Wear layers, comfortable shoes, and bring adequate sun protection. Carrying water is highly recommended. 

🟠 Pets must remain at home. 

🔵 If you need to cancel, refunds will be offered up to 4 days prior to the start of the event.

3/19 Eyes of Water – The History of Santa Cruz’s Hidden Springs

Spring is more than just a season, it’s also a source of water, and we’ll be quenching your thirst for knowledge. Join authors Kate Jaffe and Martin Rizzo-Martinez as they share the silent secrets of the hidden springs of Santa Cruz and daylight the stories of the buried spring network that weaves under the streets.

From missionaries to indigenous communities, these waterways have an important cultural history and a vibrant, yet hidden, riparian ecology. Learn about the untold pre-colonial history of these local springs, from the geologic and biologic past, to the present. 

📆 Wednesday, March 19th

⏱️ 6 – 8 p.m.

📍 Santa Cruz Museum of Natural History

1305 East Cliff DR, Santa Cruz, CA 95062

Light refreshments will be served prior to the start of the program.

Class Fee: $11- Museum and CNPS Members receive a special discounted price applied at checkout.

Instructors: Martin Rizzo-Martinez, author of “We Are Not Animals” –  an indigenous history of Santa Cruz, & Kate Jaffe, Executive Director of Santa Cruz Kids In Nature

3/15 Wildflower Forms & Features in Watercolor

Celebrate Springtime by capturing the intricate beauty of wildflowers with watercolors!

Spotlighting local Santa Cruz County flowers as models, participants will learn how to paint the nuanced features of these stunning seasonal subjects. In addition to learning the painting techniques, there will also be a scientific lecture on botanical identification and observation. 

Learn the basics of watercolor with step-by-step instruction by a master naturalist and artist. Apply your observations to hue, composition, brush techniques, color theory, color-mixing, layering, creating a palette, and more. This class is perfect for aspiring artists or creative nature lovers with no prior experience, only a passion for the arts and sciences. 

Wildflowers for painting reference will be provided by the artist, but participants are welcome to bring their own mushrooms to paint as well. Participants will have a completed art piece to take home at the conclusion of the workshop. Open to ages 16+/all experience levels. All supplies included.

📆 Saturday, March 15th

⏱️ 1 – 3 p.m.

📍 Santa Cruz Museum of Natural History

1305 East Cliff DR, Santa Cruz, CA 95062

Materials Fee: All supplies are included in class fee. Participants are welcome to bring their own wildflowers for reference.
Class Fee: $45 – Museum Members receive a special discounted price applied at checkout.
Instructor: Andrea Dingeldein 

What to Expect

🔵 This class takes place outside, so please dress appropriately for the weather.
🟠 Supplies may get messy, so casual attire is recommended.

3/15 Saturday in the Soil

Join the Museum for a very special community gardening day, as we team up with the Santa Cruz County Chapter of the California Native Plant Society!

Dig in and flex your green thumb as we tackle invasive species in Pilkington Creek and plant native species in the Museum’s Garden Learning Center. Learn from the California Native Plant Society’s horticultural experts about local ecology, native plants, pollinator gardens, and sustainable backyard practices. 

It’s time to volunteer and get your hands dirty!

📆 Saturday, March 15th

⏱️ 10 a.m. – 12 p.m.

📍 Santa Cruz Museum of Natural History

1305 East Cliff DR, Santa Cruz, CA 95062

For questions, email volunteer@santacruzmuseum.org

What to Expect

🔵 This project requires volunteer support with general landscaping, occasional watering, weeding, and replanting.
🟠 Please let us know if you need special accommodations when you email to RSVP.
🔵 This program happens rain or shine, but we will cancel in the case of muddy conditions or inclement weather.
🟠 All ages are welcome; children under 14 require adult supervision. Volunteers under 18 require a parent/guardian to sign waivers.
🔵. Please follow the latest guidelines for safety at the time of the program.

3/12 The Furtive Flora & Fauna of the Santa Cruz Sandhills

Spring has sprung and Santa Cruz is soon to be in full bloom!

So, there is no one more qualified to share knowledge on our beautiful backyard bounty than our friends at the California Native Plant Society

For our first Naturalist Night lecture of our floral season, learn about the rare and unusual plants found in the most unique local ecosystems: the Santa Cruz Sandhills! During this talk, uncover the secrets of the Sandhills’ flora, fauna, history, and geology.

As an added bonus, the California Native Plant Society will debut a new poster depicting 100 Sandhill species cooperatively drawn by the students of Sierra Nature Prints studio located next to the preserve.

Instructor: Peggy Edwards – Santa Cruz Chapter, California Native Plant Society

📆 Wednesday, March 12th

⏱️ 6 – 8 p.m.

📍 Santa Cruz Museum of Natural History

1305 East Cliff DR, Santa Cruz, CA 95062

Light refreshments will be served prior to the start of the program.
Class Fee: $11 – Museum Members and CNPS Members receive a special discounted price applied at checkout.
Instructor: Peggy Edwards – Santa Cruz Chapter, California Native Plant Society