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

< 2017 >
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1
  • Malcolm McLeod Annual Field Trip Meeting at Carrizo Plain
    All day
    04-01-2017

    US-101 & El Camino Real & US-101, Santa Margarita, CA 93453, USA

    US-101 & El Camino Real & US-101, Santa Margarita, CA 93453, USA

    Saturday, April 1, 2017, 8:00 am

    Malcolm McLeod Annual Field Trip Meeting at Carrizo Plain

    Join us to explore and appreciate the remarkable and unique display of annual and perennial spring wildflowers in eastern San Luis Obispo County. This could be the BIG YEAR in this giant swath of undisturbed California Prairie. Remember, this is a remote area, so make sure you have plenty of gas, water, as well as food.

    Meet at the Santa Margarita park-and-ride (freeway exit, State Route 58 at Hwy 101) at 8:00 am. We will caravan from there with a brief stop at Shell Creek. You may be able to carpool with someone, so it is recommended to arrange your ride ahead of time, or jump in with others at the meeting place. Be sure to wear sturdy shoes, bring sunscreen, a hat, and layered clothing for warmth, as needed.

    For more information contact: George Butterworth, (805) 438-3641, gbutterworth8@gmail.com or Bill Waycott, (805) 459-2103, bill.waycott@gmail.com. Rain cancels.

2
  • Spring La Purisima Burton Mesa Wildflower Walk
    9:00 am-12:00 pm
    04-02-2017

    2295 Purisima Rd, Lompoc, CA 93436, USA

    2295 Purisima Rd, Lompoc, CA 93436, USA

    Sunday 2 April 2017 9 AM

    CNPS, LVBHS, and Sierra Club Spring La Purisima Burton Mesa Wildflower Walk

    Meet at the La Purisima Mission Parking Lot, corner of Purisima and Mission Gate Rds. (2295 Purisima Rd. Lompoc) at 9 AM for this annual California Native Plant Society and Sierra Club spring tour of the beauties of the Burton Mesa Chaparral. This should be a great year for wildflowers, annuals as well as shrubs; Optional afternoon tour.

    Sturdy shoes, lunch & liquids, camera and binoculars advised. For more information, call Charlie at 733-3189 Saturday, April 8, 2017, 9:00 am, Pecho Ranch, (PG&E property) near Montaña de Oro State Park. This is an RSVP only field trip open to 40 CNPS members.

    Details will be available in the April Obispoensis and via e-mail announcements. To place your name on the list, contact Bill Waycott, (805) 459-2103, bill.waycott@gmail.com.

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  • Pecho Ranch CANCELLED
    9:00 am-12:00 pm
    04-08-2017

    Pecho Valley Rd, Los Osos, CA 93402, USA

    Pecho Valley Rd, Los Osos, CA 93402, USA

    THIS EVENT HAS BEEN CANCELLED DUE TO RAIN

    Saturday, April 8, 2017, 9:00 am, Pecho Ranch, (PG&E property) near Montaña de Oro State Park

    We will walk to the top of the ridge road, located on the north ranch. As we ascend the road, you will see the habitats change from coastal sage scrub to chaparral and bishop pine forest. The top of the road offers a view of Morro Bay and the Coon Creek drainage.  Total distance is 5 miles, elevation gain is 800 ft., three hours.

    This is an RSVP only field trip open to 40 CNPS members. To place your name on the list and receive details about this field trip, contact Bill Waycott, (805) 459-2103, bill.waycott@gmail.com.  Bill will ask for some personal contact information to be forwarded to PG&E.  

    Deadline to sign up for this field trip is March 25th.

    Rain cancels

     

    We will meet at the Point Buchon Trail check-in station. See map here: https://www.pge.com/en_US/residential/in-your-community/local-environment/diablo-canyon-trails/point-buchon-trail.page

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  • Wind Wolves Preserve
    All day
    04-09-2017

    39611 Oak Glen Rd, Yucaipa, CA 92399, USA

    39611 Oak Glen Rd, Yucaipa, CA 92399, USA

    Sunday, April 9, 2017, 9:00 am

    Wind Wolves Preserve

    16019 Maricopa Highway (State Route 166), between Maricopa, CA and Interstate 5.
    Join us for a daylong visit to Wind Wolves Preserve, part of the Wildlands Conservancy, located on the north slope of the Transverse Ranges, east of Maricopa, CA.

    This area has spectacular open spaces with carpets of wildflowers that stretch up into pine forests.
    We will meet outside the administration building at 9:00 am.

    Be sure to bring water, food, sturdy shoes, sunscreen, a hat, and layered clothing for warmth, as needed.
    Carpooling is available.

    RSVP if you plan to participate: Bill Waycott, (805) 459-2103, bill.waycott@gmail.com

    Rain cancels

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  • Irish Hills Exploration
    1:00 pm-4:00 pm
    04-16-2017

    1691 Madonna Rd, San Luis Obispo, CA 93405, USA

    1691 Madonna Rd, San Luis Obispo, CA 93405, USA

    Sunday, April 16th, 1:00 p.m

    Join us for a plant walk from the Madonna Road trailhead (southwestern terminus of Madonna Rd.) into the upper reaches of the Irish Hills Open Space.

    The vast majority of soils in this area are derived from serpentine, which is a metamorphic rock, high in magnesium and iron, while low in calcium, phosphorus, and potassium. The excess magnesium in combination with low levels of calcium, phosphorus, and potassium create a stressful environment for plant growth, and therefore inhibit the growth of the vast majority of both native and introduced species. The unique assortment of plants that do grow in the Irish Hills and on other serpentine-based outcrops surrounding San Luis Obispo, make for an exceptional mixture, which we will see in bloom on this walk. A plant list will be provided.

    The length is 5 miles, 700 ft. elevation gain, 3 hours. Be sure to bring water, food, sturdy shoes, sunscreen, a hat, and layered clothing, as needed.

    Contact: Bill Waycott, (805) 459-2103, bill.waycott@gmail.com.

    Rain cancels

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  • Growing Grounds Farm Plant Sale
    11:00 am-4:00 pm
    04-18-2017

    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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  • Workshop: Identifying Invasive Oak Pests and Diseases in San Luis Obispo County
    1:00 pm-5:00 pm
    04-20-2017

    6901 Capistrano Ave, Atascadero, CA 93422, USA

    6901 Capistrano Ave, Atascadero, CA 93422, USA

    April 20, 2017 @ Atascadero Library 6555 Capistrano Ave, Atascadero, CA 93422
    **FREE Workshop & DPR CEU’s are applied for**
    Agenda:
    1:00 pm – 1:15 pm Check-In
    1:15 pm – 1:30 pm Welcome and Introductions Lauren Brown, California Native Plant Society, San Luis Obispo County
    1:30 pm – 2:15 pm Goldspotted Oak Borer: Life Cycle, Identification and Management Speaker: Kevin Turner and Kim Corella, Cal Fire
    2:15 pm – 3:00 pm Identification, Impact and Management of Shot Hole Borer Speaker: Akif Eskalen, University of California, Riverside
    3:00 pm – 3:15 pm Break
    3:15 pm – 4:00 pm Sudden Oak Death: Identification and Management Speaker: Kerri Frangioso, University of California, Davis
    4:00 pm – 4:30 pm Questions for speakers
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  • Nipomo Native Garden Spring Garden Tour
    1:00 pm-4:00 pm
    04-23-2017

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

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

    Nipomo Native Garden Spring Garden Tour offers a delightful afternoon of garden tours, talks, and a children’s program

    Talks

    1:30 Controlling Gophers in the Garden – Gopher biology, habits, hearsay

    2:00 Using Drought Tolerant Native Plants in the Garden

    3:00 Controlling Gophers again – a popular subject

    Children’s Garden Program

    Puppet making: All the fixings available to make your own puppet

    Flower Pounding: Kids can make a lovely bookmark to take home

    Kids can also enjoy the regular activities available in the Children’s Garden:- the sandbox, the wishing tree, hopscotch, and looking for insects and other critters in the Bug House.

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  • 12th Annual Cambria Wildflower Show
    12:00 pm-5:00 pm
    04-29-2017

    1000 Main St, Cambria, CA 93428, USA

    1000 Main St, Cambria, CA 93428, USA

    Saturday April 29 12:00-5:00  and Sunday April 30 10:00-4:00

    • Hundreds of freshly picked Central Coast wildflowers and other flora will be presented and described
    • Edible, Medicinal, Rare, Invasive and Poisonous plants will be identified
    • Botanists will be on hand for your questions
    • Treats available from the Wildflower Café
    • T-shirts, books, and more for sale

    Admission is free for students, otherwise it’s a $3 donation to this worthy cause.

    Brought to you by the Friends of the Fiscalini Ranch Preserve 805-927-2856

    Of special interest will be the “Fire-Following Flowers” the first to bloom out of the Chimney fire

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  • 12th Annual Cambria Wildflower Show
    10:00 am-4:00 pm
    04-30-2017

    1000 Main St, Cambria, CA 93428, USA

    1000 Main St, Cambria, CA 93428, USA

    Saturday April 29 12:00-5:00  and Sunday April 30 10:00-4:00

    • Hundreds of freshly picked Central Coast wildflowers and other flora will be presented and described
    • Edible, Medicinal, Rare, Invasive and Poisonous plants will be identified
    • Botanists will be on hand for your questions
    • Treats available from the Wildflower Café
    • T-shirts, books, and more for sale

    Admission is free for students, otherwise it’s a $3 donation to this worthy cause.

    Brought to you by the Friends of the Fiscalini Ranch Preserve 805-927-2856

    Of special interest will be the “Fire-Following Flowers” the first to bloom out of the Chimney fire

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May
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Native Plant Pictures on Flickr