Welcome to Kingdom Plantae, where solar energy reigns! Learn how plants grow and what they need to thrive. Visitors of all ages are invited to discover solutions to science and engineering challenges. This is a drop-in activity, feel free to join the fun at any time from 1 to 4 p.m. Included in regular admission and free for members. Use Hagley’s main entrance off Route 141 in Wilmington, Delaware.