I've looked this up time and time again: how do you harvest spinach and how do you know when it's ready?
The only answer I got was "when it reaches edible size", in other words, "use your intuition". I LACK this intuition, I'm afraid!
I planted some spinach from seed, thinned it and watched it grow beautifully. In fact, I took a picture of one from the top (I have 10 or so). The view demonstrated a wondrous mathematical pattern to it all, and so I was reminded of the Fibonacci sequence and felt really gosh darn special that I had this plant.
Unfortunately, within a couple weeks, it began to falter to one side, and then eventually, they all turned yellow-stemmed with these strange brown "pods" all over the stem. Are these seeds? How do I know they're ready to be used next season? When do I ought to harvest the fargin' lot of spinach plants, and do I have to do it a little at a time or do I have to chop the whole fargin' thing?