Dedicated to the preservation of California's native plants

The mission of the California Native Plant Society is to increase understanding and appreciation of California’s native plants and to conserve them and their natural habitats through education, science, advocacy, horticulture and land stewardship.

Hot Topics

Centennial Development at Tejon Ranch

Centennial Development at Tejon Ranch

The LA County Board of Supervisors will consider whether or not to approve the proposed Centennial development next Tuesday, December 11. Although this project is located in LA County, we believe this is an issue that impacts all of California, both in terms of our...

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Save the date

CNPS-SLO ANNUAL BANQUET WILL BE HELD JANUARY 12, 2019 AT THE MORRO BAY VETS HALL.  Details coming...

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Toyon (Heteromeles arbutifolium)

Toyon (Heteromeles arbutifolium)

Toyon, Heteromeles arbutifolium is a wonderful, hardy, native California evergreen shrub. It can be a good screen in the yard, growing up to 6 feet fairly quickly. It tolerates soils from serpentine to clay, to sand. It is not as flammable as other chaparral shrubs. It is a great forage plant for bees, butterflies, and …

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Membership News

Your gifts of membership are what sustain the chapter and ensures our vital work in conservation, education, horticulture and plant science continues to grow and flourish.

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Wildflowers of San Luis Obispo 2nd Edition

Wildflowers of San Luis Obispo 2nd Edition

The Revised and Expanded 2nd Edition of our wonderful Wildflowers of San Luis Obispo, California has arrived just in time for the holidays! 20 new plants have been added and the SLO City open space map has been updated including trailhead directions. The new cover photograph of Woolly Blue Curls with the distant view of an oak studded grassy hillside puts you on our Central Coast.

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Invasive Species Report – Fennel (Foeniculum vulgare)

Invasive Species Report – Fennel (Foeniculum vulgare)

The extremely invasive Foeniculum vulgare is in the carrot (Apiaceae) family. It is native to Southern Europe and is problematic in coastal California and is also present throughout the western US all the way to Texas. I’ve encountered Fennel on Santa Catalina Island...

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President’s Message December 2018

President’s Message December 2018

In past issues of Obispoensis, I have noted some of my observations on the impact of invasive plants in our state – their negative effects and a bit on their historical introductions. My musings on the origins of such a domineering presence by these plants,  led me to...

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Growing Native Plants from Seeds is Fun

Growing Native Plants from Seeds is Fun

For a native plant novice like me, joining the California Native Plant Society seemed like a good idea so I became a member of the San Luis Obispo chapter. My spouse and I attended our first meeting a year ago last October. That is where I met Marti and the real fun began.

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Botta’s pocket gopher

Botta’s pocket gopher

Last month we discussed California ground squirrel problems, this month I will focus on the gopher aka Botta’s pocket gopher (Thomomys bottae). For most of us, gophers can sometimes be a headache but a livable one. They come and go between you and your neighbor’s yard, only losing a couple of plants a year. For yards like these I recommend using …

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Salvia spathacea (Hummingbird Sage)

Salvia spathacea (Hummingbird Sage)

The cover of this Obispoensis is another beautiful water color by Heather Johnson. In our area Hummingbird sage can grow in an extensive mat. Its leaves are large (10 in (20 cm) long and 3 in (8 cm) wide). The leaf surface appears quilted. Its family affiliation (Mint or Lamiaceae or Labitae) is shown clearly in Heather’s water color.

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Defeat Dudleya Poaching through Propagation

Defeat Dudleya Poaching through Propagation

California Dudleyas are easy to grow. Illegal wild collection can be disrupted via legal propagation. I propagate Dudleya with middle school science classes. If seventh-graders can grow these natives from seed, you can too. Home gardens are a good source of Dudleya...

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Event Calendar

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  • Chapter Meeting & Seed Exchange
    7:00 pm-9:00 pm
    10-05-2017

    801 Grand Ave, San Luis Obispo, CA 93401, USA

    801 Grand Ave, San Luis Obispo, CA 93401, USA

    The October meeting of the California Native Plants Society will take place on Thursday evening, October 5th, from 6:00 pm to 9:00 pm at the SLO Vets’ Hall, 801 Grand Ave. in San Luis Obispo.

    The first half of the meeting will be devoted to a California native seed exchange. If you have an interest in planting native seeds and/or have native seeds to share with others, you are asked to come prepared to participate. During the  meetings, seed traders will share their tips on how to plant the seeds and grow the plants, they brought to share.

    The second half of the meeting will feature presentations by local members, reporting on botanical places of interest they visited during the summer. Join us for refreshments (please bring a dessert to share) and some exciting photographs and stories of forays into the wild. If you would like to present some of your tales of discovery out in nature, bring your photos in a viewable format to the meeting, on a thumb drive, or you can e-mail your photos to David Chipping (dchippin@calpoly.edu), 24 hours before the meeting. Dave can also answer any questions about formatting your photos.

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  • Nipomo Native Garden Plant Sale
    9:00 am-1:00 pm
    10-07-2017

    927-999 Osage St, Nipomo, CA 93444, USA

    927-999 Osage St, Nipomo, CA 93444, USA

    NIPOMO NATIVE GARDEN FALL PLANT SALE

    Saturday, October 7th, 9AM to 1 PM

    Nipomo Native Garden Parking Lot on Osage. Take 101 to Tefft to Pomeroy, left on Camino Caballo. Right on Osage.

    There will be a wide variety of landscaping plants, many drought tolerant grasses, shrubs, trees. Also –

    • Tee Shirts & Caps
    • Information and advice
    • Great Plants – Great Prices

    Plus Grand Opening of Little Free Library!

    For more information 929-3589 or cjelinek@calpoly.edu

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  • Growing Grounds Farm Plant Sale
    11:00 am-4:00 pm
    10-17-2017

    3740 Orcutt Rd, San Luis Obispo, CA 93401, USA

    3740 Orcutt Rd, San Luis Obispo, CA 93401, USA

    Growing Grounds Farm is a non-profit wholesale nursery located in San Luis Obispo. Growing Grounds offers California natives, Mediterranean perennials, succulents, restoration and mitigation plants, a wide variety of grasses, and a selection of perennial herbs.

    Growing Grounds Farm is a wholesale nursery and does not sell directly to the public except on the 3rd Tuesday of each month from 11 a.m. to 4 p.m

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  • iNaturalist Workshop
    2:00 pm-4:00 pm
    10-22-2017

    3450 Dairy Creek Rd, San Luis Obispo, CA 93405, USA

    3450 Dairy Creek Rd, San Luis Obispo, CA 93405, USA

    Arroyo de la Cruz beach

    Sunday, Oct. 22nd2:00-4:00 pm, iNaturalist Workshop, San Luis Obispo Botanical Garden

    Have you ever thought about keeping track of your own nature observations in an organized way so you could refer back to them? What if you could easily do that, as well as share your observations and photographs taken in nature, with a group of like-minded people online? Would you like to make meaningful contributions to scientific research? “Citizen science” is ordinary people contributing to scientific research and iNaturalist is the place to get started with any or all of the above.

    Join us to discuss how to use the iNaturalist website and mobile applications, what the options are, and how to customize your iNaturalist account for your personal interests. This workshop, led by Damon Tighe and Bill Waycott, will be a combination of hands-on classroom and field work.

    In preparation for the workshop, please sign up for an iNaturalist account online and create your profile. If you plan to use your mobile device(s), download and install the mobile app(s) on Android and IOS, prior to the workshop.  After the classroom component, we will visit the garden to use iNaturalist in real-time.  The SLO Botanical Garden is located in Chorro Regional Park, off of Hwy 1, across from Cuesta College and adjacent to the Dairy Creek Golf Course.

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November
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November

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Native Plant Pictures on Flickr