Garden Calendar

* East West orchid show, Friday and Saturday, 10 a.m.-6 p.m., and Sunday, 10 a.m.-5 p.m., at the New Otani Hotel & Garden, 120 S. Los Angeles St., Los Angeles, (213) 629-1200. Free.

* Wildflower seed and native plant sale, Saturday, 9 a.m.-2 p.m., at the El Dorado Nature Center, 7550 E. Spring St., Long Beach, (562) 570-1750. Vehicle fee of $5 credited toward purchase.

* Hands-on class on drip irrigation, Saturday, 10 a.m.-noon, at the Theodore Payne Foundation, 10459 Tuxford St., Sun Valley, (818) 768-1802. $30.

* The Tinseltown Rose Society show, Saturday, noon-6 p.m., and Sunday, 9 a.m.-4 p.m., at Rose Hills Memorial Park rose garden, 3888 S. Workman Mill Road, Whittier, (323) 654-0626. Free.

* Autumn in the Japanese Garden, with performances and activities including ikebana and bonsai, Sunday, 10:30 a.m.-3:30 p.m., at the Tillman Japanese Garden, 6100 Woodley Ave., Van Nuys, (818) 756-8166. $5.

* Talk on home composting by expert Andrew Lopez, Sunday, noon, at the Arboretum of Los Angeles County, 301 N. Baldwin Ave., Arcadia, (626) 821-3222. $5.

Send garden announcements to Garden Events, Los Angeles Times, 202 W. 1st St., Los Angeles, CA 90012, at least three weeks before the event date.