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Project 467: Enhancing Native Plant Diversity and the “Coefficient of Beauty” at Edgewood Natural Preserve 
Wednesday, December 16, 2020 07:30pm
 

Edgewood Natural Preserve near Redwood City is famous for its flower-filled serpentine grasslands. But the 467 acres of Edgewood support great biodiversity in the chaparral, oak woodlands, and grasslands on more fertile soils. The 100+ acres of fertile grasslands are by far the most weed-invaded habitat, and have been the focus of successful control of “macroweeds.”

Friends of Edgewood and Creekside Science are pursuing the goal of decreasing “microweeds” and increasing native cover and diversity. A Rapid Assessment Plot (RAP) inventory with over 80 plots documented more than 90 native species in the fertile grasslands, albeit often at low cover. We are investigating treatments to reduce annual weed seedlings just after germination, including hydromechanical pulverization (HMP, basically pressure- washing the grassland) and close-mowing with string cutters. Once the flush of non-native annuals is cleared, extant native perennials can vegetatively expand and occupy space in a newly created clean seedbed.

Besides commercially available local seeds, we are using more than 15 species of “boutique” seeds grown at Edgewood Farms and the Native Garden. We are trying to develop a long-term “indigenous” approach to restoration, whereby a beautiful, colorful diversity of native plants is established and can spread naturally given occasional management. 

About our New Native Plant Lecture Series

The CNPS SCV Native Plant Lecture Series has something for everyone ̶ whether you’re curious about native plants, an experienced or aspiring native plant gardener or a professional botanist, you will find something to interest and educate you in our offerings.

Our General Meeting Program presentations, Gardening with Natives (GWN) talks, and Going Native Garden Tour (GNGT) Live Sessions, will all be part of this series. From gardening to plant science to conservation to tours of botanical hot spots, if you’re interested in California’s native plants, there’s something here for you.

Most of our lectures are in the evening, although we occasionally schedule them during the day. Our talks are live presentations followed by Q&As with the viewing audience. They are live streamed simultaneously to Zoom and YouTube. They are all recorded on YouTube, so you can see them later on our YouTube channel: www.youtube.com/c/CNPSSantaClaraValley

 
Location Zoom and YouTube
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