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

Clarkia speciosa subsp. immaculata (Pismo Clarkia)

Clarkia speciosa subsp. immaculata (Pismo Clarkia)

I chose the Pismo clarkia because it grows in the area surrounding Mardi’s home and nowhere else. It grows naturally in about 20 occurrences from the southern Edna Valley, south through the foothills and valleys of the Southern San Luis Range, ending east of Pismo Beach and Arroyo Grande (Huasna Valley).

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Why Grow Natives from Seeds?

by Marti Rutherford. You have probably wandered the nursery isles looking for the ever more popular native plants being sold. Do you ever consider how those plants have been propagated? Many, if not most, native plants in the nursery trade are propagated by cuttings. The nursery person knows what the plant will look like and behave like

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Seed Exchange

Seed Exchange

I know it seems too early to be thinking seeds. Many of my plants are just starting to bloom. I just wanted to remind those who are interested that the seed exchange is going to take place ate the October meeting before the main program. Let a few of your garden...

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Gardening Corner

A Commentary by John Nowak, Plant Sale co-Chairperson

The other day, while checking out at the grocery store, the cashier noticed my CNPS hat and asked me, “How do you become an environmentalist?” I thought for a moment and then I told him “I would start at home.”

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Plant Associations and the Geology of the Morros

Plant Associations and the Geology of the Morros

What you are seeing is a display of the underlying geology manifested in the soils that lie above the bedrock. The browning grasslands are floored with ‘melange’ of the Franciscan Formation, a unit composed of sheared shale and bits and pieces of the ancient seafloor that were squished into a subduction zone… kinda like what happens if you try and push a slice of pizza under a door.

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Froom Ranch Opinion, Neil Havlik

Submitted to SLO Tribune At the San Luis Obispo city Planning Commission meeting of Jan. 24 regarding the proposed continuing care facility known as Villaggio at the Froom Ranch, several commissioners wondered aloud if the project was not “a good project in the wrong...

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Pigs Attack the Saltmarsh of Morro Bay… again

Pigs Attack the Saltmarsh of Morro Bay… again

Wild pigs are again active in Morro Bay, causing damage while rooting for the tuberous reeds in the brackish freshwater seep zones close to the high tide line. This time they are at Shark Inlet. We last saw them in 2015 on both sides of the South Bay Boulevard bridge, and neither of the locations appear to have recovered.

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Event Calendar

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  • Seed Exchange
    6:00 pm-7:15 pm
    10-04-2018

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

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

    seeds image

    The seed exchange is back!

    The workshop time slot (6.00-7.15) before the October meeting is reserved for our second seed exchange. So think seed collection. There will be a few minor differences. There has been a request to provide a picture of the plant that the seeds will become. This will help those who might not be familiar with the names choose plants they want to try. Our chapter will supply seed envelopes so we will be asking those bringing seeds to just bring a bulk collection of cleaned seeds labelled with genus and species, where and when it was collected and a picture. There is no need to spend your time separating into little envelopes.

    The seed exchange is an opportunity to share seeds from native plants which are growing in your landscape. We will not sell seed. Do remember the legal issues of seed collection. It is illegal to collect seed from private property and public spaces without permission. If you happen to have access to rare plant seed DO NOT collect it. That seed should be reserved for seed banks and those with the skills to nurture the plant to maturity.

    Keep in mind that a collection of plants grown from seed has more genetic diversity than plants grown from cuttings. Depending upon what your goal is that may be a positive point. But garden grown plant seed is not ideal for restoration planting. One would want the more pure genetics of a wild population to use for restoration. Plants grown from seed might not be like the parent plant.

    There is an article on our website under Resources that has information on seed collection and cleaning (link). You might find it helpful. Find it under Resources > Growing Natives.

  • Dessert Potluck and Members’ Slide Show
    7:00 pm-9:00 pm
    10-04-2018

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

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

    Bring a dessert to share and your 15 best digital photos. Please bring them on a flash drive and number/letter titles consecutively if you wish to show them in a particular order.

    The meeting will be preceded by a Seed Exchange at 6pm.

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