KingFisher 257

$6.00 per lb
Total (50 lbs): $300.00

KingFisher 257 has 30% faster regrowth. High powered race horse alfalfa. Get yours here!

Weight: 50 lbs Seed Rate: 18 to 22 lbs/acre Stock Status: In Stock Zones: 1, 2, 3, 4, 5 Brand:

Product Description


KingFisher 257 alfalfa is an upgrade to KF 243. It is an high powered race horse alfalfa with good standability. It has a 30% faster regrowth. Alfalfa is the forage base of many farms and for good reason. This legume can fix most of its own nitrogen, has deep roots that make it drought tolerant and yields well during the hotter summer months. Due to the pressures of the rotation schedule on many farms today, however, many alfalfa stands are in production only three or four years. To help customers get all the yield possible in this short time, Byron Seeds. focuses on high-performing varieties that will not disappoint. 

  • This alfalfa re-grows rapidly for 28-day cutting schedules.
  • Exceptional tonnage with great leaf to stem ratio
  • FD 5, WH 2
  • Disease Resistance 29 (30 out of 30 highest resistance rating)


Once established, alfalfa stands can last for many years. Many modern varieties can handle 28-day cutting schedules. In fact some elite varieties need that type of management to perform their best. One very critical aspect of alfalfa management is knowing when to take the last cutting in the fall. Alfalfa needs five weeks of growth before a killing frost (25F). In some areas, another cutting can be taken after frost when the alfalfa is dormant. 

Higher fall dormancy numbers in alfalfa indicate early spring and late fall growth, thus increase yield. For winter survival, the lower the winter survival number, the more winter hardy the variety.

Alfalfa’s are available with SureStand conventional coating or a SureStand coating approved for organic.


Alfalfa can be planted in the spring or late summer, but we recommend late summer whenever possible. If alfalfa will be spring sown, a nurse crop of grass or small grain is recommended to maximize the tonnage in the seeding year.

We usually advise seeding grass with alfalfa to give higher tonnage and better quality feed for the life of the stand. Alfalfa exhibits autotoxicity, when means that established plants (older than 8 months) give off compounds that prevent new alfalfa seedlings from establishing. 

Good ratios of sulfur, boron, and phosphorus as well as a pH above 6.5 are critical for alfalfa. Nitrogen is key for good grass yields. 



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Additional information

Weight 50 lbs