In Bishopville, S.C., is the eccentric garden of Pearl Fryar, self-taught topiarist. Mr. Fryar's horticultural handiworks trim the three acres surrounding his home at 165 Broad Acres Road. Stymied by his job as a maintenance engineer at a soft-drink can plant, he carved an outlet for his creativity through shrubs and trees, many of which had been rescued from the compost heap of a local nursery that had considered them too sick or ugly to sell. He began snipping, nipping and clipping his…