Earth Day’s not all patchouli and rainbows. Just mostly.

DO
Environmental Education Garden
What: Get down and dirty in the garden for the good of nature-loving city kids.
Why: Make it easier being green.
When: Sat., 9:30 a.m.-1 p.m.
Where: Daniel Webster Middle School, 11330 W. Graham Pl., at Sawtelle Blvd., West L.A. (Sign up essential. Go to laworks.com).

BUY
Costume National Warehouse Sale
What: More than nine seasons of top-notch clothing and shoes for men and women, 70 to 90 percent off.
Why: It’s a Costume party.
When: Thurs.-Sat., 10 a.m.-7 p.m.
Where: 8001 Melrose Ave., at N. Edinburgh, West Hollywood (323-655-8160).

EAT
Hollywood Farmers’ Market
What: Shop from local organic farmers and small business in honor of Earth Day (and be sure to catch Farmer Jeans Spring Harvest Sale in the adjacent parking lot, too).
Why: Harvest time.
When: Sun., 8 a.m.-1 p.m.
Where: Ivar Ave., b/t Hollywood & Sunset Blvd., Hollywood (323-463-3171).

SEE
New Works by Harrison Haynes
What: The painter’s first solo show in Los Angeles is the last show ever at Jeff Electric Gallery.
Why: It’s electric (boogie, woogie, woogie).
When: Opens Thurs., 7-10 p.m. Thru May 7 by appointment.
Where: 3022 W. Sunset Blvd., b/t Vendome St. & Silver Lake Blvd., Silver Lake (323-664-8580).

Too Hot Not to Handle
What: An easy-to-understand guide to the effects of global warming in the U.S.
Why: Hot town, summer in the city.
When: Sat., 7 p.m.
Where: HBO.