Morph can tell you more about it, but generally there are warm season microbes and cool season microbes. The warm season microbes do more work at the surface and seem to shut down with low soil temps. The cool season microbes work down at the root level, but due to winter dormancy, you will not see the results of their labor until spring when the grass leaps out of the ground.

Both will work at lower temperatures, they just take a little longer. Just like milk decays fast on the countertop, but lasts a while in the fridge...it'll still go, it just takes much longer at 34 degrees.

Ok thanks.......trying to increase the herd. Need someone to eat all this leave litter.

A touch of synthetic or organic nitrogen can help out with that as well--the bacteria don't have to synthesize the stuff from the air (which is doable, but expensive in terms of energy).

You'll only need a quarter pound of N or so per thousand square feet to accelerate decay, so a one quarter rate feeding. Organic will serve better as it hangs around, but that's balanced by the cooler temperatures. Synthetics can wash off more easily, but are available immediately.

So how many lbs of Milorganite per 1000 would that be? I have approx 2500 sqft

5-10 per K would do it fine, for a total of 12.5 to 25 pounds of Milo. Since I doubt you want to store it over the winter, you can either just use the full bag or devote the rest to trees, shrubs, perennials, and spring-blooming bulbs that could use a pick me up.

What happened to your plan for a kelp humus liquid brew? I was looking forward to results on that one!

I mixed a batch n applied. As far as results.....we'll see