This is a very specific request but I am inspired by the "pushing the Zone" discussion. I have/use two parcels of land in Florida. On is in zone 9b (Tampa area) the other is in 9a (nature coast) We can grow tropical plants in 9b with no issue, bananas, pineapple, papaya, guava as we have only had 1 night of freezing temps in 4 years. However, our 9a property receives several frosts each winter. Im looking for suggestions on great, durable, high yield plants that can tolerate the 9a freezes, or will manage with a little zone-pushing habitat alteration.