Three could be your magic number this weekend (if Columbus gets his due).

HEAR
Edible Estates
What: Learn about turning your front lawn into an edible landscape from Fritz Haeg.
Why: Grow your own.
When: Reception, Thurs., 8-10 p.m.; Sun., noon-2 p.m.
Where: Machine Project, 1200 d N. Alvarado St., b/t Sunset Blvd. & Reservoir St., Echo Park (213-483-8761).

BUY
Multidesigner Sample Sale
What: Lily McNeal, Park Vogel, Woo, Mimo, Kerry Cassil, and others at up to 80 percent off.
Why: Buy, buy, birdie.
When: Fri., 10 a.m.-7 p.m.
Where: The Cooper Building, 860 S. Los Angeles St., ste. 415, b/t W. Eighth & W. Ninth Sts., Downtown (213-622-5399).

EAT
Shichirin at Lily Bar/Lounge
What: Japanese tabletop grilling inside Tiger Lily’s new lounge.
Why: Barbecue season’s never over.
When: Daily, 5 p.m.-1:30 a.m.
Where: 1745 N. Vermont Ave., b/t Prospect & Kingswell Aves., Los Feliz (323-661-5900).

DO
TarFest
What: Four full days of break-out film, music, and art events.
Why: Join the culture club.
When: Thurs.-Sun., see site for times.
Where: La Brea Tar Pits, 5801 Wilshire Blvd., at S. Curson Ave., & surrounding Museum Row, Miracle Mile.

Walk for Hope
What: Take a stroll with Olivia Newton-John to raise funds for breast cancer research.
Why: You’re the one that she wants.
When: Registration, Sun., 7 a.m.; walk, 8:45 a.m.
Where: City of Hope, 1500 E. Duarte Rd., b/t Highland Ave. & Buena Vista St., Duarte (800-544-3541).