Invasion of the Pumpkin! So this year I took ONE pumpkin seed, which turned into ONE tiny pumpkin plant, and I put it in the corner of a 4x4 bed filled with peppers, just to see what would happen. Those monstrous branches moving 8 feet in every direction and hooking and rooting themselves into everything they can get their hands on - other plants, sides of beds, ground, themselves - and walking themselves all the way over to the next bed, where they've latched onto my lettuces, are all from the same ONE plant. Weird!