I have recently drilled in (killed the sod, which was a Sudangrass field in summer) a mixture of oats, ryegrass, crimson clover, winter peas. We got 1/2" rain the next day and I had JUST finished spreading fertilizer as rain came. 3 days later, oats were visible from a distance and ryegrass was about 1" tall. peas hadn't made appearance, but the crimson clover was just busting through in the two leaf stage. 1 week later (d10) The oats are ~4-5", ryegrass is at 2+", crimson is coming along, winter peas are about 2-3" and the mix is thickening up very nicely. Should get adequate grazing on the mix in late Nov/Dec. and plan to pull cattle before grazed too tightly to keep ryegrass in good shape for winter. Next spring, hopefully in early March, the ryegrass should be cranking up and hopefully the clover will ramp up too. If all goes well, should be able to cut WAY back on hay. (I still like to put out some hay when grazing this mix in spring due to RG being so lush. Seems to help stabilize the gut some) A good plan (SG-Summer, Winter annual mix-late fall/early spring) to eliminate/reduce hay requirements, and keep excellent nutrition to cows during typical "hay feeding/low quality feed" time of the year, especially in the fescue belt. Sometimes I will feed some hay from mid-Sept until about mid-October to get a bit of stockpiled perennial forages to incorporate into the mix of annuals to get me through breeding season and into winter/Spring. 60-90d hay is my goal. Much less, I'm leaving $$ on the table, much more and my feeding cost is getting too high.