Not just spines! Lots of unusual and fascinating plants most people can easily grow. Hundreds of rare and bizarre plants strutting their stuff! Art Scarpa of the Cactus and Succulent Society will bring along both indoor tropical and hardy outdoor plants, depending upon the season, to Tower Hill Botanic Garden in Boylston for this instructional class on Saturday, April 17, beginning at 11 am and running through 12:30 pm. The plants pictured below are aeoniums.Â THBG members $20, non-members $22. Register on line at www.towerhillbg.org.