Saturday, March 15 Edelweiss Perennials in Canby celebrates Hellebores Days, through Sunday. The hours are 9 a.m. to 4 p.m., Saturday and 11 a.m. to 3 p.m. Sunday. The nursery is located at 29800 S. Barlow Road. For more information, call (503) 263-4680 or go online to www.edelweissperennials.com

Max & Hildy’s Garden Store, 19350 N.W. Cornell Road, Tanasbourne, Hillsboro, features a Birthday Party for Erin the Dog. The famed dog party raises money for the Oregon Humane Society and Dove Lewis Memorial Animal Hospital. Ten percent of cash receipts that day will go to those organizations. Best dressed dogs will have a chance to win prizes.

Raintree Nursery in Morton, Wash., offers a class on “Starting Your Home Orchard & Berry Patch.” Tailored for inexperienced gardeners, the session covers varieties, rootstocks, pollination, spacing, soils, siting, method of planting, irrigation and staking. The cost is $15 and the class runs from 9 a.m. to noon. For more information, e-mail info@raintreenursery.com or call (360) 496-6400.

Berry Botanic Garden in Portland features a weekend-long class on wicker willow hedgerow baskets. In this two-day workshop, use up those garden prunings in a colorful wicker basket. The class, which runs from 10 a.m. to 4 p.m. through Sunday, is taught by Margaret Mathewson. The fee is $100 to $115. For more information, call (503) 636-4112. The street address is 11505 S.W. Summerville Ave., Portland, OR 97219-8309.

Thursday, March 20Heronswood Nursery in Kingston, Wash., holds an all-day propagation class. Class sizes are limited and the sessions fill up quickly. To register, call (360) 297-4172. The street address is 7530 N.E. 288th St., Kingston, WA 98346.

Saturday, March 22Raintree Nursery in Morton, Wash., holds its annual full day of home gardening classes at the Morton Community Center. Sessions include grafting lessons, berries, propagation, best varieties, pests and diseases, backyard plant breeding, grapes and kiwis, pruning and others. The nursery will be open all day – the fee is $5 for the classes, with a $5 coupon available upon making a $50 purchase. The Community Center is located at Backstrom Park, which is on Highway 508 in Morton, 3 blocks east of the Highway 7 intersection. For more information, e-mail info@raintreenursery.com or call (360) 496-6400.

Ongoing and upcomingSunday, March 30 The Berry Botanic Garden is the site for “Naturescaping for Clean Rivers,” a free class on the practice that features native plants, natural landscapes and water-friendly gardening practices. Each participant receives a free workbook and native plant to take home. The event it sponsored by Portland Bureau of Environmental Services and East Multnomah Soil and Water Conservation District. The class size is limited and advance registration is required by calling (503) 797-1842 or e-mailing naturescaping@yahoo.com

The Clatsop County Master Gardeners work in their Demonstration Garden at the Clatsop County Fairgrounds on the third Saturday of each month. The start time is 10 a.m. if the work day is rained out, plan to attend the following weekend.

The Clatsop County Beekeeping Association invites people to download past copies of the Clatsop Beekeepers newsletters from its Web site, www.orsba.org

“Cultivating the American Garden,” a conference sponsored by Taunton Press, will be held May 3-4 at the Hilton Portland. Speakers include Gordon Hayward, a garden designer, lecturer and author; Lucy Hardiman, a writer and garden designer and Allan Armitage, an author and professor of horticulture at the University of Georgia. The two-day conference includes demonstrations, new plants and products, private garden tours and a bag of garden goodies. The fee is $199 for Fine Gardening magazine subscribers and $229 for nonsubscribers. You can add on a 2-hour interactive design session with a featured landscape designer for $35. For more information, please call (800) 888-8286, weekdays from 9 a.m. to 5 p.m., Eastern Standard Time. Or, go online to www.finegardening.com/portlandconference

Early bird tickets are available for the annual Bainbridge in Bloom Garden Tour, an event that takes in six personal gardens and offers a lecture series, book and plant sale. The 15th annual tour takes place July 12-13, and includes a day of children’s gardening activities on July 9. Proceeds will benefit the Bainbridge Island Arts and Humanities Council. Tickets cost $12 to $25 if purchased before May 15 – afterwards, the prices go up. For more information, go online to www.gardentour.info or call (206) 219-3182.