That looks like a good setup, Chip. My greenhouse has leaks too, but our air is just too thin here at this higher elevation.
Besides the tropicals I grow tomatoes, green onions and cilantro so I can have salsa ingredients handy.
Most owners of my dome greenhouse use it to grow fruits and veggies. I am a flower nut, so I like colorful flowers year round. I have mostly Plumeria, Hibiscus, Geraniums, and different colors of the Crown of Thorns.
