Intermediate dormant FD=6 and outstanding yield potential under 5, 6, and 7-cut harvest managements. Highly resistant to all major nematode pests. WL 458HQ.RR promotes optimized feed intake, milk production, and greater profit potential when fed. Ideal intermediate variety for cash hay producer; WL 458HQ.RR has consistently produced big yields of leafy, fine-stemmed hay with dark green color and high feed value. Very strong disease resistance.