There are a few things you can do to repair a plastic greenhouse. The most important thing is to make sure that the greenhouse is properly ventilated. If the vents are blocked, the greenhouse will heat up and the plastic will melt. You can also repair small tears in the plastic with duct tape or a hot glue gun. Be sure to seal the seams well so that water doesn't get inside. If the frame of your greenhouse is damaged, you can replace it with a new one or build your own from PVC pipe or wood. Finally, you can add insulation to your greenhouse to keep it warmer in winter and cooler in summer.

I need help repairing the greenhouse. How do you fix the plastic greenhouse? Well, there are a few things that could be wrong. It might just need a good cleaning - the dirt and dust can accumulate on the panels and reduce light transmission. You can clean it with a soft cloth and some soapy water. If the panels are cracked or broken, you can replace them with new ones from a hardware store or online. Be sure to get ones made specifically for greenhouses, as they will have been treated with UV inhibitors to protect against the sun's rays. If the frame is bent or warped, you can try to straighten it out by gently pushing and pulling until it's back in shape.