Spring flowers will be in bloom at the home and gardens of Isabelle Bowen Henderson when the historic Raleigh property will be open to the public on April 3, 2022. Russ Stephenson RALEIGH In the late 1970s, the City of Raleigh tried to tear down and pave over the house and English-style gardens where for decades Isabelle Bowen Henderson raised daylilies, irises and roses near the N.C. State University bell tower. A few years later, the city tried again. Both times it wanted to replace a shaded, two-lane section of Oberlin Road with a five-lane thoroughfare that would run through Henderson’s property and line up neatly with Pullen Road, near…