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Slides from April 11, 2019 Presentation Easy to Grow California Native Plants San Carlos Library April 11 2019 Easy-to-grow, Tonight's Agenda Drought-tolerant • Introduction California Native What is a California native plant • Our California Climate Plants: • Myths 20+ about using California native plants in the garden Proven Winners • Benefits for your Garden from using California native plants in the garden • How to begin in your yard A talk created for the CNPS-SVC chapter by Arvind Kumar with • 7 FAQ revisions and additional photographs by Nancy McClenny between 2014 and January, 2018 • 20 + California native plants Edits and additions by Sally and Ken Coverdell April 2019 1 2 What is a local CaliforniaThenative plant ? (And why is that helpful) What exactly is a CaliforniaWWhat’sWhatnative’hatWplant? Also see www.calflora.org and www.calscape.org for answers to what’s local to your city or county. Plants that occur naturally within the state of California, i.e. California Floristic Province The Jepson Manual, 2012 without direct or indirect human intervention. CWhttp://ucjeps.berkeley.edu/eflora/ = Central Western Region 3 4 Seasons of California Our Climate in a Nutshell The Rainy Season, November – February • Most of California, including the Bay Area, has a The beginning of our spring! Mediterranean climate characterized by cool, wet winters and warm, dry summers. - begins with the first big rain - plants begin to spring forth • The average annual rainfall: The Wildflower Season, March - June Half Moon Bay 29.6” - days become longer, winter storms are warmer Redwood City 20.4” - wildflowers take advantage of this time to grow and bloom San Jose 15.9” The Dry Season, July - October - soil becomes dry (rainfall totals from usclimatedata.com) - this is the season when many plants are dormant 5 6 1 Easy to Grow California Native Plants San Carlos Library April 11 2019 Innate Survival Strategies Myth: Hummingbird Sage Giant Chalk Dudleya Native plants are unattractive. (Hairy, resinous leaves) (White, succulent leaves) Chalk dudleya • Early settlers wrote glowing accounts of California Dudleya brittonii flora. • Plant hunters, started visiting California in the 18th California Buckeye century, documenting its flora and taking seeds White sage (Summer deciduous)Mountain Mahogany (Leaves vertical when stressed) back to Europe. (Salvia apiana) • Appreciation of our native flora was lost due to: - Our insistence that our gardens look like those where we migrated from, areas with Photo by N.McClenny summer rain. - The ability to irrigate (abundant and inexpensive water) - Corporate Nurseries wanting to grow and sell the same plants throughout California and the US. Coast Live Oak White Sage - Many California native plants don’t like being in (Leathery leaves ,the edges of the pots and are unattractive at the nursery. (Small leaves in summer, big ones in winter.) leaves curl under when stressed) Photos on this slide by N McClenny 7 8 Myth: Native plants are hard to grow. Myth: Native plants are hard to find…and expensive. CA native nurseries: • Yerba Buena Nursery, 12511 San Mateo Rd. (Hwy 92) • Other nurseries can be found at • calscape.cnps.org/plant_nursery.php General nurseries with some CA natives: • SummerWinds Nursery 725 San Antonio Rd, Palo Alto • Half Moon Bay Nursery, 11691 San Mateo Rd. (Hwy 92), St Catherine’s Lace and Paciific wax myrtle in a Sunnyvale garden Other sources: • Annual CNPS-SCV plant sales at Hidden Villa, Los Altos • San Bruno Mountain Mission Blue Nursery plant sales, Brisbane Any plant does poorly if its needs aren’t met. • For a complete list of nurseries, sales, events, helpful info, go to: Photos by Sally Coverdell Select appropriate plants! cnps.org/gardening#bay 9 10 Myth: If a plant is a California native, What Does Drought-Tolerant Mean? it must be drought-tolerant. Right? • Plants that survive in average or less-than average • All newly planted native plants require water until established in rainfall in your region. the garden. A redwood that is drought-tolerant in Half Moon Bay Provide deep watering at planting time, during the first one 29.6”rain/yr) will likely NOT be drought-tolerant in or two summers and thereafter based on the plant species. San Jose (15.9” rain/yr). • Once established, native plants have evolved to survive in their • A plant that tolerates our six-month summer dry season native range. once established except when we have a winter drought Their native range might be a moist environment: fog-belt, riparian, seep, wetland 11 12 2 Easy to Grow California Native Plants San Carlos Library April 11 2019 WUCOLS/MWELO Benefits of Native California Plants How do I know if a plant is drought tolerant: WUCOLS In the Garden (Water Use Classification Of Landscape Species) • Classifies plants as Very Low, Low, Medium, and High water use Create a diverse, beneficial, and beautiful ecosystem • Developed by the California Center for Urban Horticulture, University of • Reduced water use California, Davis. • Find the list at ucanr.edu/sites/WUCOLS (We are region 1, North Central • Get paid to take out your lawn Coast) The Bay Area Water Supply and Conservation Agency’s (BAWSCA) Lawn be Gone (Ends June 30) MWELO: Model Water Efficient Landscape Ordinance bawsca.org/conserve/rebates/lawn In 2015 the state of California adopted the Model Water Efficient Landscape • A healthier ecosystem Ordinance to be implemented and enforced by either county or city ordinances. • Plant selection: average WUCOLS plant factor of 0.3 for 75% of the plant area Habitat for native birds and insects • Turf area not to exceed 25% of the landscape area Reduced pesticide and fertilizer use. • Mulch: A minimum 3-inch layer should be applied in planting areas • No introductions of non-native invasive plants 13 14 Do not plant milkweed Do not plant milkweed within 5 miles of coast if you live near the coast • Milkweed should only be planted if you are more than 5 miles inland. (From the Ocean and the SF Bay) • You should instead focus on nectar plants. www.openspacetrust.org/blog/monarch 16 17 Habitat and Pesticide Use Natural Systems and Fertilizer Use • Our native plants host native insects. • The effects of the absence of insects moves rapidly up the • Natural systems are inherently beautiful food-chain, especially influencing bird populations. • Nothing goes to waste • Inputs are limited Bringing Nature Home: How Plants Sustain Wildlife in our Gardens, Douglas Tallary, Department of Entomology and Wildlife Ecology, University of Delaware 18 19 3 Easy to Grow California Native Plants San Carlos Library April 11 2019 Don’t Plant an Invasive! How to Begin in Your Yard Invasive Non-Natives Calla Lily: Zantedeschia aethiopica Iceplant: Carpobrotus edulis and Carpobrutus chilensis • Basic Principles of Garden Design Mexican Feather Grass: Stipa tenuissima • Identify the microclimates found in your yard Montbretia: Crocosmia x crocosmiiflora • Use local, natural plant communities as models Pampas grass: Cortaderia selloana Go on field trips! Periwinkle: Vinca major • Choose plants from those native plant communities Pride-of-Madeira: Echium candicans associated with the microclimates in your yard Scotch Broom: (Cytisus scoparius) Spruge: Euphorbia (several species) • The more diverse your garden is the more stable it will be For a complete list go to the California Invasive Plant Inventory www.cal-ipc.org 20 21 General Microclimates found in the Average Yard Basic Principles of Garden Design and the Associated Plant Community Forest: Forests have a continuous canopy In your yard: shady areas such as North facing planting areas and areas shaded by neighboring houses and fences • Balance • Contrast Woodland: Woodlands have a discontinuous breaks in the canopy cause patterns of sunlight and shade. • Focal Points In your yard: East facing planting areas (morning sun, afternoon shade) • Repetition and West facing planting areas (morning shade, afternoon sun) Coastal scrub and Chaparral: Both generally areas of full sun. Native plants are best suited for informal landscapes In your yard: South facing planting areas Meadows: Can occur within all the communities. Riparian: Can occur within all the communities. 22 23 A fun way to study the natives near you: A fun way to study the natives near you: Local Field Hikes: The Best Education Local Field Hikes: The Best Education Photos by Sally Coverdell © nmcclenny nmcclenny.05.2014 CHECKER MALLOW, May, 2014 MILK MAIDS, Pinnacles, Feb. 2011 CHECKERBLOOM, MILK MAIDS, Pinnacles, Feb. 2011 Bean Hollow Beach, May, 2014 Garrya, Mt. Tamalpais Mimulus, Ojai Arctostaphylos, Sedona Az Larkspur, Edgewood Park TIDY TIPS, LARKSPUR, MARIPOSA LILY, Pinnacles, April 2014 Edgewood Park, May, 2014 Edgewood Park Ribes, Mt. Tamalpais Heuchera, Carson Pass Calycanthus, Bidwell Park, Chico 24 25 4 Easy to Grow California Native Plants San Carlos Library April 11 2019 Going Native Garden Tour The Mission of the 2019 California Native Plant Society (CNPS) is… Oganized by the To conserve California native plants and their natural habitats. California Native Plant Society (Santa Clara Valley Chapter) To increase understanding, appreciation, and in association with horticultural use of native plants. UCCE Master Gardeners of Santa Clara County. South: Sat, May 04, 2019, 10:00am to 4:00pm North: Sun, May 05, 2019, 10:00am to 4:00pm Please consider joining the California Native Plant Society A free tour of native gardens in Santa Clara Valley & www.CNPS.org Peninsula, San Francisco Bay Area GNGT.ORG 26 27 Selecting the Plants • Start big, work
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