Pasadena weekend: What to do April 25-27

If you're looking to spend this weekend at an event that fits the sustainability bill, your calendar could fill up fast.

Gardening. On Saturday, the Arroyo Seco Foundation is holding an Earth Month Invasive Plant Removal Volunteer Day. For Sunday, Pasadena Community Gardens has organized a free composting class with Master Gardener Norma Bonilla.

Exhibition and learning. Wildflowering L.A., a seed-to-bloom initiative by the artist Fritz Haeg, ends this Saturday and Sunday with an exhibition at The Shed. The nature art project — it began last fall with the sowing of native wildflower seeds on sites throughout Los Angeles — saw 50 plots of land turn into blooming gardens this spring. The exhibition will document the initiative with clippings, site photos and archival materials. Talks and family activities related to gardening with native plants round out the program. On Sunday, Transition Pasadena activists will be at an adult ed session at All Saints Church to talk about Building Resilient Communities Locally.

Home tour. On Sunday, Pasadena's first Landmark District, Bungalow Heaven, is hosting its annual home tour. Eight arts-and-crafts era homes will be open to visitors. Docents will be on hand for commentary and Q&As; landscape architect Elizabeth Neaves will conduct a garden tour titled "Pools, Patios & Water Features."

Medication drop-off is this Saturday.

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Unless otherwise noted, all events take place in Pasadena. For times, addresses and other details please see the calendar page of Pasastainable, CA or the event owner's webpage.