The new centerpiece of the Chicago Botanical Garden rose garden north of Chicago is a precast concrete fountain, 28 feet in diameter, shaped like a 5-petal Rose of Sharon. Casting the petals and leaves of the Rose of Sharon required the building of positive and then negative molds which would be used 5 times. Concrete, fiberglass and plywood were used for this stage. The 6000-psi mix called for minimal use of coloring agents which might increase the amount of water needed and reduce strength. The epoxy-coated reinforcing steel needed to be carefully arranged, welded and finally tied into position so it wouldn't sink into the facing concrete.