I didn't look at plant dates, went straight to average start harvest dates. I got the impression that Foggy wanted to explore at the latest rye could be crimped and that got me curious if another cereal could fill the bill. Like you mentioned there are a lot of other factors in making something work, but a list of options isn't always bad to look at. I made the list as a curiosity exploration.
Yep.....clover is a HUGE part of my means to control pigweed as said above.....and supply's the bulk of my nutrition throughout the year. The Winter Rye gets planted in Late August or Early September depending on rain and weather. It is a fail-safe crop for my deer going into winter.....and grows down to 33 degrees F.....and the deer seem to like it until it's frozen solid. Even then....it's got roots in the ground to supply more benefits come spring.
Then it's THERE in spring at the very first green up......and I got huge number of pic's of deer that NEED that nutrition that the rye provides when the snow is disappearing. Within a few weeks the clover comes on to be a better source of nutrition.......but that rye is just a huge bennefit to my deer when you see how their ribs are sticking out and how little energy remains here in zone 3. The ground is still frozen in some places....but that rye is supplying food for starving deer. If I knew a better crop to feed my deer....I would plant some.
Within weeks .....the deer's health has returned in my area. An absolutely amazing feat.
Going further through the season.....the rye supplies the allopathic properties to keep weeds at bay.....and is the perfect companion for my varieties of clover below. Then....if I can let it grow long enough....it supplies fawning cover for newborn fawns and their moms. Further......it will later provide for more soil nutrients when it releases it's values as it is terminated via my crimper. At which time I use it as a mulch to futher prevent weeds.
What more can you ask from a low-cost cover crop?? I rest my case. Grin.