I planted one acorn squash plant this sping. It is now over 4 feet in diameter...has many blossoms. To my great surprise I peeked under the leaves and there sits a big squash already. The reason I am surprised it that everything else on the plant seems to be in a different stage...and there is only one squash and many blossoms. I never grew veggies (except tomatoes) before. The reason I ask this perhaps childish question is I just figured if there is one squash the plant ought to have several at that stage? Do they grow late into the fall? How do I know when to pick this squash? It is dark green and I see a orange spot on it. Is it important to pick it now. Or will it get bigger?