From 2002 through 2013, both Coastal (COS) and common (COM) Bermudagrass (Cynodon dactylon) (BER) pastures were overseeded in Oct each year with either ‘Apache’ arrowleaf clover (Trifolium vesiculosum) (CLV) without N-fertilization or ‘TAM-90’ annual ryegrass (Lolium multiflorum) (RYG) plus N for the 7-mo stocking period. F-1 (Hereford × Brahman) cows with fall-born Simmental-sired (SIM) calves were stocked on all pastures from late Feb. to early June (SPG), and with winter-born SIM calves from mid-June to late Sept. (SUM). All pastures were stocked continuously at 3 intensities (STK) to achieve different forage mass. Proc Mixed was used to determine treatment differences. Calf (steers and heifers) ADG was greater (P < 0.01) during growth of CLV and RYG in SPG compared with SUM. During SPG, calf ADG was greater (P < 0.01) from RYG (1.24 kg d⁻¹) compared with CLV (1.05 kg d⁻¹); and ADG was different (P < 0.01) at all 3 STK for low (LO) 1.40 kg d⁻¹, medium (ME) 1.20 kg d⁻¹, or high (HI) 0.83 kg d⁻¹; and no difference for BER. During SUM, calf ADG (P < 0.01) was different at all STK at LO (1.05 kg d⁻¹), ME (0.81 kg d⁻¹), and HI (0.58 kg d⁻¹). Cow ADG during SPG was greater (P < 0.01) for RYG (0.40 kg d⁻¹) vs CLV (0.20 kg d⁻¹), and all 3 STK were different (P < 0.01) for LO (0.74 kg d⁻¹), ME (0.30 kg d⁻¹), and HI (−0.15 kg d⁻¹). In SUM, cow ADG was affected by STK (P < 0.01), BER (P < 0.04), and STK x BER (P < 0.04). Cows lost weight on COM at all 3 STK (−0.19, −0.53, and −0.87 kg d⁻¹); whereas cow ADG on COS was different at each STK of LO, ME, and HI, respectively, at 0.15, −0.47, and −0.89 kg d⁻¹. Calf gain ha⁻¹ for combined SPG and SUM was greater (P < 0.01) from COS (720 kg ha⁻¹) than COM (638 kg ha⁻¹); and from either HI or ME STK (758, 724 kg ha⁻¹) compared with LO STK (557 kg ha⁻¹). The RYG + N resulted in total calf gains of 804 kg ha⁻¹ compared (P < 0.01) to CLV + no N at 556 kg ha⁻¹. This 11 yr study showed calf gains per ha of more than 550 kg ha⁻¹ on BER with CLV and no-N. Apache CLV proved to be a reliable, productive legume for overseeding BER in the southeastern US without use of N.