The primary component of soilless rooting media for ornamental plant production is peat. However, quality peat is costly and is a nonrenewable natural resource. The current study compared the suitability of using charred and composted agriculture–forestry organic wastes (AFOW) vs. sphagnum peat as components of the growth medium for the ornamental plant Anthurium (Anthurium andraeanum cv. ‘Pink Lady’). Ten media were prepared from composted corn cobs (C), charred corn cobs (CH), charred garden wastes (CHG), and Pindstrup sphagnum peat moss (P). These media contained (% v/v): CH (100%), C (100%), CHG (100%), C (70%) + CHG (30%), CH (70%) + CHG(30%), C (35%) + CHG (15%) + P (50%), CH (50%) + P (50%), CH (35%) + CHG (15%) + P (50%), C (50%) + P (50%), and P (100%) as the control. After 8 months in the greenhouse, the growth and flowering of transplanted Anthurium were best with P, CH+P, CH+CHG+P. The results indicate that mixing charred AFOW with peat would provide a suitable medium for Anthurium production while reducing the need for peat and converting waste materials into useful products.