Summer Alfalfa

Aug 01, 2025


Tar Spot

Don't Count Out Summer-Seeding Your Alfalfa 

If spring weather got in the way of planting your alfalfa, you're not out of luck yet. Summer seeding is still a solid option and it comes with some real advantages when done right. 

Timing is everything.
The key is getting seed in the ground 6-8 weekks ahead of your area's average first frost. For growers in the Upper Midwest, that means you should be aiming for July 30 through Auguat 15. Farther south? You've got a little more wiggle room; into late August or even early September depending on the location.

Why consider summer seeding? 

  • Better workload balance. Summer alfalfa fits well between cereal crops and manure applications.

  • Less soil disease pressure. Warm, drier soils are typically better for germination and establishment. 

  • Stronger first-year yields. Fall-seeded alfalfa hits the ground running in year one. 

  • Lower insect pressure. By late summer, pests like potato leafhoppers start to decline. 


Get it off to strong start: 

  • Check soil pH (ideal is 6.8-7.2) and make sure fertility is where it needs to be. 

  • Seed depth matters. Go 1/2 to 3/4 inch deep using a grain drill. 

  • Use treated seed to boost early root development.

  • Control weeds. Summer weeds rob moisture fast, and seedlings can't afford the competition.

  • Watch for herbicide carryover from earlier crops. Some products hang around for months. 

The biggest thing: don't wait too long. Alfalfa needs time to build roots and transition to a perennial before cold sets in. A little planning now could set you up for a stronger stand and fewer headaches next spring. 

Want help figuring out if it's the right move for your acres? Reach out to your Premier Agronomist; they are happy to talk through your plan. 

*This article was provided to us by Winfield United* 

 

Latest Posts

Apr 30, 2026
May is one of the most important months of the growing season. As crops emerge and early decisions are made, Premier Cooperative’s Agronomy Division is focused on protecting yield potential and setting crops up for success.Here’s what the team is focused on this month:
Apr 30, 2026
Skip the mailbox and get paid sooner by signing up for grain ACH (direct deposit). With ACH, your grain payments go straight to your bank account - no paper checks, no bank trips, and no mail delays. It’s a fast, secure option that saves time, reduces paperwork, and delivers payment within 1–2 business days, giving you quicker access to your money and making busy seasons easier to manage.

Ready to simplify your grain payments? Sign up here or call 608‑319‑1202 to enroll today. Thank you!
Apr 30, 2026
Spring has officially sprung. Those April showers didn’t just bring May flowers. It brought in calls to the energy division that flooding on some of our customer’s property tipped over their propane tanks. The first thing propane tanks do when the water gets high enough for them to float is roll over. This rollover can allow liquid to reach the vapor valve. The last thing you want coming through a propane line and traveling to your house is propane liquid. It can cause a pressure surge, which over-pressurizes the piping, regulators and appliance valves. This can cause leaks and a potentially very dangerous situation.