I planted rhubarb last April and got beautiful stalks and HUGE leaves. (We photographed one leaf when it was more than 14 inches long.)
But the four
plants which I planted in a one-square-foot area (I misread Mel Bartholomew *and* John Jeavons...) were entirely too big for such a small area.
I harvested four stalks from the largest plant in March, just before transplanting all four of 'em into containers. I've made rhubarb & strawberry pie and other rhubarb dishes for a long time, but my own first-year stalks weren't very flavorful.
Now I'm letting all four plants develop bigger roots and hope to harvest perhaps in October and again next February/March.
Depending on where you are in Utah, letting the plants develop for next spring and not harvesting in the fall may be the way to go. I *did* cut off the leaves whenever they started to turn yellow, indicating that their photosynthetic activity was coming to an end; the leaves were put into my BioStack compost bin.
Just watching the knot of leaves in the center gradually uncurl and develop into HUGE leaves is beautiful.
Sunset Zone 17, USDA Zone 9