I used old sheets, large burlap cocoa bean sacks, and straw to cover up the tender seedlings as well as some of the perennial herbs with vulnerable new growth. Hopefully it will keep the frost off the leaves and insulate the plants for in the wee hours of the morning.
Strawberries under a sheet
Marjoram with frost damage
Sage with frost damage
Lemon Balm with frost damage
Despite some cold nights, seedlings both indoors and outside are doing well. For the seedlings outside, it's just a matter of keeping some very invasive vines at bay, keeping the beds moist, and letting the plants do their work. Indoor seedlings should be ready for potting up soon and the cabbage plants can be moved outside. The next batch of seedlings should be along very shortly.