In-row spacing studies have been conducted with `Beauregard!, `Hernandez' and some promising seedlings in the LSU Agricultural Center sweet potato breeding program. May, June and early July plantings are evaluated on 1 m rows with in-row spacings of 23, 30, 38, and 46 cm. With the variety `Beauregard' early May plantings (1-15th) yields of U.S. No.1 grade roots are higher at the 30 cm spacing. From mid-May to June 20th higher yields of No. 1's are produced at a 23 cm spacing. Higher yields are obtained in the late June-early July plantings at the 30 cm spacing. Highest yields overall are produced in late May-early June plantings with `Beauregard'. With the `Hernandez' variety the highest yield of U.S. No.1 grade roots have been produced at a 38 cm in-row spacing during all three planting seasons, with the highest yields overall being produced in the May plantings. Days to maturity are reduced in early `Hernandez' plantings. Results of limited in-row plant spacing with the seedling `LU7-59' are identical to the `Beauregard' variety.