Calendar highlights: Earth Day, Grapes of Wrath, Children First/CIS-attachment3 Published on April 16, 2013in Calendar highlights: Earth Day, Grapes of Wrath, Children First/CIS View full-size image Invasive no more: Volunteers are invited to remove ivy, nettle and blackberries and enjoy refreshments at a volunteer work day, hosted by The Highlands Botanical Garden on Saturday, April 20.