OCCNPS AND THE NON-TOXIC MOVEMENT
OCCNPS POSITION ON HERBICIDE USE: OCCNPS has no opinion on which, or whether, herbicides may or may not be used in manicured parks, medians, school grounds or similar sites. Our concern is that synthetic herbicides (e.g. glyphosate, aka Roundup) remain available as a necessary option, a part of the Integrated Weed Management (IWM) tool kit for management of invasive plants in natural open spaces. (Both CNPS and Cal-IPC have relevant policies—see their websites.)
Use of herbicides on non-native plants growing in natural-habitat open spaces has a fundamentally different purpose from cosmetic use of herbicides in urban/suburban settings. In natural areas, the purpose is to remove invasives so that the native ecosystem can fully function, with the full range of native plants and the animals that feed on and live in them.
In particular, non-native plants do not provide the food needed by most native insects. The absence of these insects in turn lessens the ability of native birds, reptiles, and small mammals to eat and reproduce, which in turn affects the rest of the ecosystem. An area grown with mostly non-native plants is often MUCH less biodiverse than a similar-sized area of native plants.
Date: April 19, 2018 (doors open 7:00 pm, Speaker at 7:30 pm)
Speaker: Michael Wilken
Location: Duck Club, Irvine (Directions)
For thousands of years, the Kumeyaay people of northern Baja California and southern California made their homes in the diverse landscapes of the region, interacting with native plants and continuously refining their botanical knowledge. Today, many Kumeyaay Indians in the far-flung ranches of Baja California carryon the traditional knowledge and skills for transforming native plants into food, medicine, arts, tools, regalia, construction materials, and ceremonial items.
This not to be missed talk as well as the book, Kumeyaay Ethnobotany, explores the remarkable interdependence between native peoples and native plants of the Californias. The book, through in-depth descriptions of 47 native plants and their uses with lively narratives and vivid photographs connects the archaeological and historical record with living cultures and native plant specialists who share their ever relevant wisdom for future generations.
Anthropologist Michael Wilken-Robertson’s lifelong collaborative relationships with Native Baja Californians have allowed him to explore traditional indigenous uses of plants in the diverse habitats of their territory, from the ancient past into the present. He currently teaches in the department of anthropology at California State University San Marcos.
Michael’s Book will be for sale and can be signed by the author!
Native Gardeners Corner—Tips, Tricks and Techniques This column was first published in the January/February 2010 issue. The subject is timely as despite the absence of rain, we are still in prime planting season. The question was: “Which native plant would you confidently recommend for use in clay soil?”
Gene Ratcliffe—I vote for Festuca californica (California Fescue), a great evergreen grass that does well in heavy clay and even part shade, midway in size between the Nassellas and Muhlenbergia.
Celia Kutcher—Best shrub for clay soil on slopes within a few miles of the coast: Rhus integrifolia (Lemonadeberry). Best for clay soil flatlands: Nassella spp (Needlegrass species). & some other bunchgrasses. But it depends on how clayAey & how alkaline.
Alan Lindsay—The soil in my garden is clay, hard as a rock when it is dry. I have just one Chamise that thrives no matter what I do to it. It's been stepped on and broken, gone without water for an entire summer, and it keeps coming back. I believe its botanical name is Adenostoma fasiculatum var prostratum, which Tree of Life sells as Adenostoma fasciculatum 'Nicolas.' Mine has never gotten more than 3 feet high with a spread of 6 feet. The bloom is nothing to rave about but is abundant for a couple of months and its foliage is always dark green. I think this prostrate Chamise is overlooked as a landscaping plant, especially in clay soil.
Nancy Heuler—Fragaria chiloensis and/or Fragaria californica.
Greg Rubin—Some outstanding performers in clay include Baccharis 'Pigeon Point', Erigeron(glaucus (Beach Daisy), many Sages (S.(leucophylla,(S.(brandeegii,(S.(spathacea,(S.(apiana), many Buckwheats (Eriogonum sp)., Manzanitas (Arctostaphylos) such as 'Louis Edmunds’, ‘Sunset’, ‘Carmel Sur’, ‘Austin Griffith’, ‘Dr. Hurd’, ‘Howard McMinn', California Lilacs (Ceanothus) like 'Joyce Coulter’, ‘Frosty Blue’, ‘Blue Jeans’, ‘Ray Hartman’, ‘Yankee Point’, as well as California Fuchsia (Epilobium, Zauschneria sp).