Same with peas, get them going REAL early, I've had snow on them and done great! Peas did great, I'm glad I wasn't the only one (not really) that our spinach did the same thing, came up about 2" and bolted! I usually do great with spinach. Planted some this fall also, about 2", hasn't bolted, but isn't growing.. Always done good with swiss chard, didn't grow enough to eat, bout the same as the spinach??? Planted a ton of beets for greens and beets, not great either! (love beet greens with little baby beets thinning them out) did get some edible beets, not many for what we planted. I think it was the weather, weird yr??. Thankfully I tried kale this yr, tons of it!! Did real good on the cabbage also this yr, 36 big heads, enough for boiling, sauerkraut, and the chickens, chickens will have their fill of kale also.