Ventelation in the greehouse

When we put up the greenhouse earlier this year, we forgot to put the ventealtion window in!!

Is it ok if i jeep the door open through the summer months??

 

You can even keep the door open, veggie, if you so wish.:D However, I would use something to keep any cats out. Also, you would get much better air circulation if you put the vent in. Makes for a healthier enviroment for your plants. :thumb: