Tomorrow

Country Fair Day, with plant sale, petting zoo, silent auction, tours of greenhouses, barns, more; 11 a.m. to 4 p.m. Free. Saul Agricultural High School, 7100 Henry Ave.; 215-988-8846, gardentenders@pennhort.org.

Sunday, May 6

Arboretum walk with the horticultural staff to view nearly 100 trees and shrubs with the designation "Gold Medal Plant"; 1:30 to 2:30 p.m. Free. Haverford College, Whitehead Campus Center, 370 Lancaster Ave., Haverford; 610-896-1011.

Wednesday, May 9

Exhibiting at a rose show, program by rosarian Pat Bilson at the West Jersey Rose Society's meeting, 7:30 p.m. Free. Cherry Hill Township Complex, Tilelli Community Center, 820 Mercer St., Cherry Hill; 856-234-6583.

Using herbs in the landscape, talk by John D. Martin, professor of ornamental horticulture and environmental design, Delaware Valley College; 7:30 p.m. Fee: $5. Delaware Valley College, Mandell Building (Room 114), Route 202, off Route 611 Bypass, Doylestown; 215-489-2283.

Up ahead

Azalea Garden Party

, fund-raiser to support garden's upkeep, with cocktails, hors d'oeuvres, raffle, live music, kids' activities, 5:30 to 8 p.m. May 10. Fee: $125; $65 under age 35 ($10 additional at door); call or e-mail for advance reservations. Azalea Garden, Fairmount Park, Kelly and Waterworks Drives (behind Philadelphia Museum of Art); 215-988-8830;

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Plant sales

Gladwyne Library

, 362 Righters Mill Rd., Gladwyne; 610-642-3957.. Free. Annuals, perennials, herbs, vegetables, trees and shrubs; 8 a.m. to 6 p.m. today and 8 a.m. to 3 p.m. tomorrow.

Pennypack Ecological Restoration Trust, 2955 Edgehill Rd., Huntingdon Valley; 215-657-0830; www.pennypacktrust.org. Free. Native plants; 2 to 7 p.m. today and 10 a.m. to 3 p.m. tomorrow.

Garden Club of Uwchlan, Uwchlan Meeting House, 5 N. Village Ave., Uwchlan; 610-701-0792. Free. Annuals and perennials; 8 a.m. to 1 p.m. tomorrow.

Bartram's Garden, 54th Street & Lindbergh Boulevard; 215-729-5281; www.bartramsgarden.org. Free. Native trees, shrubs, perennials and herbs, annuals and heirloom vegetables, 8 a.m. to 3 p.m. tomorrow; plus bird walk (8 a.m.; reservations requested, bring binoculars), talk on Linnaeus (1:30 p.m.)..

Green Valleys Association, Envirofest at Welkinweir, 1368 Prizer Rd., Pottstown; 610-469-4610; www.greenvalleys.org. Free. Native plants; 8:30 a.m. to 3 p.m. tomorrow.

Providence Garden Club of Pennsylvania, Williamson Trade School, 105 S. Middletown Rd. (Route 352), Media; mommomhaz@aol.com. Free. Annuals, perennials, hanging baskets and plants from members' gardens; 9 a.m. to 2 p.m. tomorrow.

Master Gardeners of Bucks County, Neshaminy Manor Center parking lot, Route 611 and Almshouse Road, Doylestown; 215-345-3283. Free. Annuals, perennials, woody plants, hanging baskets, water and pond plants, butterfly garden plants, Mother's Day baskets; 9 a.m. to 3 p.m. tomorrow.

American Rhododendron Society, Valley Forge Chapter, Jenkins Arboretum, 631 Berwyn Baptist Rd., Devon; 610-647-8870; www.jenkinsarboretum.org.Free. Rhododendrons, azaleas, perennials, wildflowers, ferns, conifers, member-grown plants; 9 a.m. to 3 p.m. tomorrow and 11 a.m. to 3 p.m. Sunday.

Barnes Foundation Arboretum, 57 Lapsley Ln. (enter from City Avenue), Merion; 610-667-0290, Ext. 2255 or 1071. Free; sale by cash or check only. Rare and unusual trees and plants, orchids, ferns, tropicals, perennials, herbs; 10 a.m. to 3 p.m. tomorrow.

Delaware Nature Society, Coverdale Farm, 543 Way Rd., Greenville; 302-239-2334; www.delawarenaturesociety.org. Free. Native wildflowers, trees, shrubs, ferns, aquatic plants; 10 a.m. to 5 p.m. tomorrow and noon to 5 p.m. Sunday.

Herb Society of America, Philadelphia Unit, Historic Yellow Springs (meadow), Art School Road off Route 113, Chester Springs; hsaphila@comcast.net; 610-469-0655. Free. Herbs, antique roses, native plants and trees; 10 a.m. to 2 p.m. Thursday.

- Jerene Schroeder

Submit items for "Garden Calendar" three weeks in advance to jschroeder@phillynews.com or to The Inquirer, Box 8263, Philadelphia 19101. Include a contact person, address and phone number.