Branch out.

SPROUT
Sustainable Saturday
What: Learn how to grow mushrooms, build a composting bin, and brew your own beer at the free West Philly DIY workshops.
Why: Impress the pants off your friends with bottles of homemade mead.
When: Sat., 9 a.m.-3:30 p.m.
Where: Locations online at universitycity.org. Registration (required) for worm composting workshop online at eventbrite.com; registration (required) for mushroom workshop online at eventbrite.com.

GULP
Punch Cocktails at Oyster House
What: Offbeat ingredients like white pepper, basil, and pomegranate tea modernize classic drink recipes (and there’s not a scoop of rainbow sherbet in sight).
Why: The concoctions are served in individual glasses, so you don’t have to commit to a massive bowl.
When: Mon.-Sat., 11:30 a.m.-11 p.m.
Where: 1516 Sansom St. (215-567-7683).

RAID
Arcadia Boutique’s Warehouse Sale
What: Put the finishing touches on your summer wardrobe with clothing and shoes from Dolce Vita, She-Bible, and others for 30-70 percent off (reg. $48-$224).
Why: Stretch out sandal season as long as possible.
When: Fri., noon-6:30 p.m.; Sat 11 a.m.-6:30 p.m.; Sun., noon-5 p.m.
Where: 819 N. 2nd St. (215-667-8099).

WATCH
Too Many Creeps: New York Underground Film
What: A documentary, Blank City, that explores the seedy side of the Big Apple during the ’70s and ’80s, followed by three short films by Vivienne Dick.
Why: Thurston Moore and Fab 5 Freddy share their views on the scene.
When: Sat., 7 p.m.
Where: The Ibrahim Theater at International House, 3701 Chestnut St. (215-895-6575). Tickets ($8) online at ticketweb.com.

Photo: Conrad Erb / Courtesy of Sustainable Saturdays