Via Kitchen Gardeners International, here is an article about frost tolerance of vegetables from Botanical Interests. Check tonight’s temperatures in your region to see if light or heavy frost is expected.
If you still have summer vegetables growing in your garden and hope to harvest more of them, make sure you keep them protected tonight – and if you haven’t already set up low tunnels or cold frames for your fall vegetables, it’s definitely time to get moving. Today’s wind will make it difficult to work with row covers (bring a friend!). Many fall vegetables are frost-tolerant, but windy conditions could cause additional damage.
Here’s one way we’re keeping plants protected this fall at the Derwood Demo Garden: