Developed by the USDA & Clemson Univ., this 1.0 mil thick, durable red plastic film reflects far-red wavelengths into the plant's canopy, triggering photosynthesis and stimulating rapid growth and development. Penn State Univ. studies confirm that results are earlier, with 12% to 20% greater yields over black plastic. Also increases strawberry yields. Weed suppression and 4-6°F soil warming. Not recommended for southern states.