Temps in the Seattle area are often just a bit too cold for plants to grow well in a garden, so I decided to try a makeshift greenhouse. I picked up some PEX tubing and 0.7mil painters plastic. A couple clothespins later and I had a very rudimentary hoop house. It seemed like it was working really well for the plants that it covered so I decided to try a little experiment. I planted three zucchini plants at the same time and once they had all popped up, I put the hoop house over two of them. The plants circled in blue had the house and the one without is circled in red. What a difference! I think next year I need to expand this greenhouse idea.