When is the best time to late-summer seed alfalfa?
Seeding alfalfa during late summer can result in vigorous and productive forage stands if proper establishment practices are followed. As a rule of thumb, these seedings should be made six to eight weeks before the first killing frost. This means that August 1-10 would be ideal for most years in East Central Wisconsin. Seeding too early increases the risk for hot, dry conditions during germination and seedling development. However, if moisture and field conditions are optimum during late-July, I wouldn’t hesitate to begin. Seeding alfalfa too late in the summer will not give plants enough time to develop adequate root and top growth before winter. In most years, it’s advisable to keep your seed in the bag after September 1st. What weed control measures are needed for summer-seeded alfalfa? There is no need to use a companion crop or PPI herbicide for weed control. Weed pressure is not as intense during this time of the year compared to early spring. Additionally, warmer soil temperatur
