Shrubs, woody perennials, annuals, vegetables, herbs, water-garden plants; 9 a.m. to 3 p.m. Free. Master Gardeners of Montgomery County, Montgomery County Extension Office, 1015 Bridge Rd., Collegeville; 610-489-4315;
Tomorrow and Sunday,
Native plant sale
Wildflowers, vines, ferns, shrubs, trees; 10 a.m. to 4 p.m. tomorrow and Sunday. Free. Bowman's Hill Wildflower Preserve, 1635 River Rd. (Route 32), New Hope; 215-862-2924;
Volunteer to Maintain High School Park
, 10 a.m. to noon tomorrow and 1 to 3 p.m. Sunday. Free; RSVP appreciated. Sign-up/information: 215-663-5911;
. Meet at park shed, High School Road and Montgomery Avenue, Elkins Park. Wear long work pants, long-sleeved shirt, sturdy shoes, bring garden gloves if available.
Monday, May 19
Attracting Birds to the Garden
, program with master gardener Carolyn Booker; 6 to 7 p.m. Free; preregistration required:
; 215-988-8872. Dickinson Square Park, Parsons Building, Fourth and Tasker Streets. Information:
Flower Arranging From Your Garden
, program with florist Marie Bushnell (of Flowers by Marie) at the Trevose Horticultural Society meeting; 7:30 p.m. Fee: $3. Wood River Village Auditorium, Hulmeville Rd. and Bensalem Blvd., Bensalem. 856-866-9163.
Wednesday, May 21
Four-Season Containers: Gardens with Year-Round Pizzazz
, workshop for adults with garden designer Michael Bowell (of Make a Scene); 10 to 11:30 a.m. Fee: $20; preregistration required. Camden Children's Garden, 3 Riverside Dr., Camden; 856-365-8733;
Explore the Plants of the Delaware Piedmont
, botanist William McAvoy discusses common and rare species; 5:30 to 7:30 p.m. Fee: $25; preregistration required. Mount Cuba Center, 3120 Barley Mill Rd., Hockessin; 302-234-4244,
Thursday, May 22
Standard flower show
, horticultural division with displayed specimens and design division in several categories; sponsored by the Garden Class of the Women's Community Club of Uwchlan; 3 to 6 p.m. Free. Uwchlan Meeting House, Routes 100 and 113, Lionville; 610-942-7501;
Native flowering shrubs
class with slides, outdoor tour; 10 a.m. to 1 p.m. May 24 at Bowman's Hill Wildflower Preserve, New Hope. Fee: $15; preregistration suggested: 215-862-2924; wear comfortable shoes, dress for weather.