Celebrate Arbor Day with the Conservatory and Ahlum & Arbor Tree Preservation on April 28 & 29. Activities for the whole family include, tree climbing with arborist equipment, tree ring counting and root displays, a children’s scavenger hunt and crafts. Have a question about trees? Ask the professional horticulturists and arborists. Also, take home a free sapling from Green Columbus and enter to win tree service from Ahlum & Arbor. Food trucks will be onsite to provide food and refreshments.