Kansas University’s Monarch Watch program will offer thousands of butterfly-friendly plants to the public during an open house this weekend.

The group’s Spring Open House and Plant Fundraiser will be from 8 a.m. to 3 p.m. Saturday at Foley Hall on West Campus. Nearly 4,000 plants will be available for a suggested donation of $3 to $4. The event also includes refreshments, games for children, lots of monarch butterflies and tours of the group’s garden and lab.

Also, the local band Clatter will play a benefit concert for Monarch Watch at 9 p.m. today at the Bottleneck, 737 N.H.

More information is available at www.monarchwatch.org.