The Valley Flower and Garden Show, featuring The National Pool and Spa Expo, is 10 a.m. - 8 p.m. March 13; 10 a.m. - 7 p.m. March 13 and 10 a.m. - 5 p.m. March 15, Agri-Plex, Allentown Fairgrounds, 17th and Chew streets, Allentown.

This year's Master Gardeners' topic is green infrastructure and storm water management, including a display on practices such as installing a rain garden and other activities to protect streams and rivers.

For a list of speakers and more information: valleyflowershow.com, 610-432-8425