gardeners help!!!...last year i put a rhubarb root in the ground in the yard and left it alone per the person's instructions who gave it to me...this year it grew a few stalks about half a foot high, maybe just a little higher...i havent picked it yet...the leaves though are starting to turn a bit yellow and red/pink...what does this mean? it is diseased? should i pick the stalks? what should i do?
the plant is in a corner in the yard...there is nothing else growing around it besides our lawn and, i suppose, some weeds...the rhubarb that we had when growing up seemed just fine without the slightest interference from us (weed pulling, miracle grow, etc)...it's been a very rainy summer though...temps around 50s-60s when raining and 70s when sunny