As buds begin bursting on trees, bushes and flowers this spring season, the Hall County Master Gardeners will host its annual Spring Garden Expo this weekend. The two-day plant sale will be from 8:30 a.m. to 5 p.m. Friday, April 4, and 8:30 a.m. to 4 p.m. Saturday, April 5, at Chicopee Woods Agricultural Center, 1855 Calvary Church Road, Gainesville. Speakers will deliver two free presentations each day, and food vendors will provide refreshments.