Kathy I just discovered this thread:
<<< I really need a hoop house ....>>> Please seriously consider investing in one. The rewards so clearly outweigh the investment, because with so many plants you can overcome much easier the increasing uncertanties caused by climate change. With dahlias it is amazing the difference it makes in growth rates and extension of the blooming period.
We rely on plastic lined greenhouses for our year round small scale commercial vegetable operation. In the future I'm even considering widening for our short sized fruit trees as well. Late spring frosts or early fall unexpected frosts simply ruin our crops. Flowers is the same.
Arturo