Thank you, Elaine! Squirrels and birds are what I would be worried about - I didn't realize they were only a daytime pest. We are in a subdivision where the houses are close together and somehow, when we have nighttime visitors - it's deer! They've eaten my neighbours tulips a number of times, but mine have been safe so far.
I will take your advice on the planters too!
Anne - I'm shocked they have grown so large! Here are the photos of the package - it lied!
The greenhouse I bought from Amazon, the brand is "Ohuhu". I also have a planter box from Amazon (made by Outsunny) with the same type of cover. They are excellent!