Pasadena weekend: March 20-22

A busy weekend with happenings around water, climate change and native plants. Plus: ongoing and recurring events.

Water. On Saturday, the City of Sierra Madre and the Rotary Club are holding a World Water Day 2015 event. Expect an exposition with water experts, seminars, demonstration gardens, educational workshops and fun.

Climate change. Two organizations are holding climate change events this weekend: On Saturday, the Pasadena chapter of the League of Women Voters is hosting its annual Climate Change Forum; for Sunday, Transition Pasadena has organized a talk titled Carbon Free Prosperity.

Native plants. On Saturday and Sunday, the Theodore Payne Foundation will hold its annual native plant garden tour. Overall, 35 gardens in the Los Angeles area will be open, eight of them in or around Pasadena.

Gardening. On Friday morning the Hahamongna Nursery will host a work day for gardeners that includes planting and information about growing native plants. On Saturday morning, the Eaton Canyon Nature Center will host a Conservation Group work day. Volunteer projects including native planting, trail repair and weed abatement. Advance sign up required. Transition Pasadena's Throop Learning Garden will meet on Sunday morning.

Walks, docent-led. Descanso Gardens (La Canada) is hosting docent-guided seasonal walks on Saturday and Sunday morning. On Friday and Saturday morning, the Arboretum (Arcadia) has docent-led walking tours on the calendar.

Bicycling. On Sunday morning the Pasadena Cyclery will host a ride and clinic for beginner riders just starting out or for riders wanting to cycle more effectively.

Kids. On Saturday morning, the Eaton Canyon Nature Center is hosting a family nature walk. Bring your small children, walking shoes, sunscreen, water and a hat. Also on Saturday morning at the Nature Center: the weekly Nature Tails Story Hour which includes stories, nature walks and puppet shows for children ages 3-5.'s petition for a ban of styrofoam containers in Pasadena is still up and active.

Exhibition. As part of the Pasadena Arts Council's AxS Festival 2014, the Armory presents Karin Apollonia Müller's World’s Edge, a photographic exploration of the intersection between the natural landscape and complex urbanization. Ends next summer.

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Unless otherwise noted, all events take place in Pasadena. For times, addresses and other details click on the link to the event owner's webpage.