Cheatham County: Zebra Swallowtail (1) Little Marrowbone Farm, 1560 Little Marrowbone Road, Ashland City, TN 37015. 36.24220 (36 14 31.9194 N) and -86.99676 (086 59 48.3354 W). [Google Maps API] Davidson County: Zebra Swallowtail (1) Flowers' Garden Center, 4550 Eatons Creek Road, Nashville, TN 38218. 36.22826 (36 13 41.7354 N) and -86.86715 (086 52 01.7394 W). [Google Maps API]