Lectures and seminars will be offered at the San Francisco Pacific Orchid Exposition. 9 a.m.-6 p.m. today and 10 a.m.-5 p.m. Sunday. Fort Mason Center's Festival Pavilion, San Francisco. $10-$55. (650) 548-6700.
Master gardeners host a talk about pruning ornamental grasses, dormant fruit trees and summer vegetable seeds. 9 a.m.-noon. Fair Oaks Horticulture Center, 11549 Fair Oaks Blvd., Fair Oaks. Free. (916) 875-6913.
"Threads of Time: Breast Cancer Quilt Project," keynote speaker Alice Beasley, quilter and artist. 1-2 p.m. The Brickhouse Art Gallery, 2837 36th St., Sacramento. Free. (916) 457-2502.
Look for signs of spring in the UC Davis Arboretum Terrace Garden, and take home ideas of plants for your own containers and beds. 2 p.m. Event is free, and free parking behind the Davis Commons Shopping Center at First and E streets, Davis. (530) 752-4880.
Take a tour of the San Francisco Botanical Garden's arrangement of magnolias led by a docent. 6-8 p.m. Located at the corner of Ninth Avenue and Lincoln Way in Golden Gate Park, San Francisco. $15. (415) 661-1316
Sarah Jackson, technical editor of Handwoven Magazine, will give a presentation on designing garment fabrics. 10 a.m.-2 p.m. Shepard Garden and Arts Center, 3330 McKinley Blvd., Sacramento. $3. (916) 508-8984.
The Green Acres Dig Into Spring Event features vendors and free seminars with topics that include canning, soil, fruit and citrus trees. 1-7 p.m. Friday; 9 a.m.-5 p.m. next Saturday; 9 a.m.-3 p.m. March 3. Green Acres, 205 Serpa Way, Folsom. Free. (916) 673-9290.
Button Bazaar 2013 the Sacramento Button Club hosts a collectible clothing button show and sale from dealers from around the country. 10 a.m.-5 p.m. Carmichael Community Club House, 5750 Grant Ave., Carmichael. Free. (916) 489-1785.
Hundreds of blooming cymbidium orchids will be for sale at the Sacramento Valley Cymbidium Society's annual show and sale. 9 a.m.-4 p.m. Shepard Garden and Arts Center, 3330 McKinley Blvd., Sacramento. Free. (916) 421-9615.
Quilt Day for Kids, sponsored by the Folsom Quilt and Fiber Guild. Elementary school-age children can participate in a variety of hands-on quilt projects, including designing and making a quilt block. 9 a.m.- noon. Journey Church, 450 Blue Ravine Road, Folsom. Free. (Register by Friday). (916) 600-4150 .
Roseville Green Thumb Society, members of California Garden Clubs Inc., host a meeting for members. The topic is bugs; speaker is entomologist Dick Gaspari. Prospective members welcome. 6:30 p.m. Raley's Event Center, 1915 Douglas Blvd., Roseville. Free. (916) 723-2508.
Sacramento Valley Cymbidium Society meeting will feature a workshop on displaying orchard plants at home or in shows. Public welcome. 7 p.m. Shepard Garden and Arts Center, 3330 McKinley Blvd., Sacramento. Free. (916) 372-0231.
Learn gardening tips at the Sacramento Public Library monthly Garden Club Meeting. 1 p.m. Rancho Cordova library branch, 9845 Folsom Blvd., Sacramento. Free. (916) 264-2920.
Classes and workshops
El Dorado County master gardeners present a master class about how to prepare the garden for spring and summer vegetables. Topics include planting times, garden site selection, soil preparation, and more. 9 a.m.-noon. Veterans' Memorial Building, 130 Placerville Drive, Placerville. Free. (530) 621-5512.
Learn about farm-training classes from the Sacramento Natural Foods Co-op. 11 a.m.-1 p.m. Soil Born Farms American River Ranch, 2140 Chase Drive, Rancho Cordova. Free. (916) 363-9685. Advanced registration required.
Discover the benefits of compost to your garden and the environment, and the different methods of composting at the Nevada County master gardener free workshop. 10 a.m.-noon. NID Business Center Grounds, 1036 W. Main St., Grass Valley. (530) 273-0919.
Learn about intermixing vegetables with ornamental plants, edible flowers and landscaping planning, design, havesting and storage, at the Edible Landscape Workshop by Placer County master gardeners. 9-10:30 a.m. 212 Harding Blvd., Suite Q, Roseville. Seating is limited, registration suggested. (530) 889-7388.
Create your own succulent collection for your garden. High-Hand instructors will help you select the best succulents to pair together. Participants receive soil, three succulents, a pot and instructions. 10-11 a.m. High-Hand Nursery, 3750 Taylor Road, Loomis. $45. (916) 652-2065. Advanced registration required.
Learn how to design garment fabrics with Sarah Jackson, technical editor of Handwoven Magazine. 10 a.m.-2 p.m. Shepard Garden and Arts Center, 3330 McKinley Blvd., Sacramento. $3. (916) 264-8800.
Learn how to control yellow star thistle and other noxious weeds in a workshop presented by the UC Cooperative Extension. 9-11 a.m. Fire Station 85, 1050 Wilson Blvd., El Dorado Hills; 3-5 p.m. El Dorado Main Library, 345 Fair Lane, Placerville. Free. (209) 533-5695 (registration required.
Placer County master gardeners present their sixth annual Gardeners Gathering. Five speakers will share ideas for home gardening; master gardener question-and- answer booths, and booths from other gardening agencies. 8:30 a.m.-3:30 p.m. Blue Goose Fruit Shed, 3550 Taylor Road, Loomis. $30 (register pcmg.ucanr.org or in person at 11477 E. Ave., Auburn). (530) 889-7388.
Sacramento County UC Cooperative Extension master gardeners present a workshop on the basics of worm composting. Learn about the bins, worms, feeding worms, and harvesting worm castings. 1-2:30 p.m. Sylvan Oaks Library, 6700 Auburn Blvd., Citrus Heights. Free. (916) 875-6913.
Learn how to choose the right varieties of tomatoes, deal with pests and diseases, and properly water, care for, and harvest tomatoes. Other topics include canning, dehydrating and freezing tomatoes. Presented by El Dorado County master gardeners. 9 a.m.- noon. Government Center Hearing Room, Building C, 2850 Fairland Court, Placerville. Free. (530) 621-5502.
Learn secrets to the ancient art of creating and growing bonsai trees with Exotic Plants owner and founder Kifumi Keppler. Noon-1:30 p.m. Exotic Plants, 1833 Howe Ave., Suite 165, Sacramento. Free. Advance registration required. (916) 922-4769.
Placer County master gardeners present a series of composting and soil workshops. 8:30-10 a.m. Roseville Utility Exploration Center, 1501 Pleasant Grove Blvd., Roseville. $6-$8 per workshop. (530) 889-7388.
El Dorado County master gardeners present a workshop on irrigation. The basics of home sprinkler and drip-irrigation systems will be discussed. Learn how to reduce your water bill while providing your plants with the water they need. 9 a.m.-noon. Veterans' Memorial Building, 130 Placerville Drive, Placerville. Free. (530) 621-5502.
Edible Landscape Workshop presented by Sacramento County master gardeners. Topics include the basics of design, planning, plant selection, maintenance, harvesting and storage options. 9 a.m.-4 p.m. First United Methodist Church, 2100 J St., Sacramento. $30. Advanced registration required. (916) 875-6719.
Learn about plants and techniques to create a deer- resistant garden and landscape. 10-11 a.m. High-Hand Nursery, 3750 Taylor Road, Loomis. Free. (916) 652-2065. Advanced registration required.