For regular turnips it may be a little late, but Hakurei turnips would work very well. All those crops you listed are frost-tolerant, so you have way more than 60 days. The spinach and kale are particularly tolerant and will be fine right until the first permanent snowfall. OTOH, you have to add a 25-50% extension to the DTM to account for fall's shorter and ever-shortening days. I would also suggest radishes, tatsoi, bok choy, gai lan and claytonia. IME, freeze damage thresholds are about like this (this is without row covers): Least tolerant: lettuce and bok choy - mid to high 20s F Tolerant: beets, turnips, radishes - mid 20s F. Mound up soil around the growing root to prevent the root from freezing. Very tolerant: kale, spinach, tatsoi, claytonia - mid teens F This post was edited by Slimy_Okra on Fri, Aug 15, 14 at 21:48

Three inches left should be plenty. Definitely ok with the oats and the vetch. Oats has its growing point at soil level at this stage, and vetch grows from a fleshy root. The other two should be ok as well. It should grow back really fast. You should know in just a few days if its going to regenerate. If not, you can replant any time in your climate.

This is another case of people (usually city dwellers) that read all these posts on the GW and over the years start to regergitate the same mythical talking points of the day. Almost everything has some form of ecoli on it, every piece of meat you ever buy has it, when heated most of it gets killed and the rest are taken care of by your white blood cells.The reason the government says give it 120 days because they are covering thier butts. Cattle farmers routinley drive the front end loader into the corral in the spring and dump a few tons of maure on the garden and then level it and plow it under and then plant thier garden.We are walking in fresh manure every day have it on our hands and pants, its floating in the air and you know what? Ill bet we are healthier than most over sensitive hypocodriacs living in the city. People Its fertilizer and humus use it if you want but there is nothing wrong with it, this is just another case of people over analyzing dirt.I wonder do city people breath without gas masks? Because they will ingest way more unhealthy things than they will by tilling in wet cow or horse s*** in thier gardens. PS I wonder what how they justify thier house pets who spread ecoli onto thier furniture when after taking a dump jump onto thier bed or sofa or carpet?

Not sure if you guys are keeping score on accuracy but WOW! You're fast! Thank you all so very much. I've been beating myself silly trying to identify these plants.