Row covers can be as simple as a thin, old sheet. However, for best success a lightweight, spun-bonded polypropylene fabric is recommended. This type of row cover can be found at local garden centers at certain times of year as well as through garden supply catalogs.
Row covers can be laid on the ground right over the plants to be protected or stretched over hoops. Because of frequent wind, it may be preferable to use hoops to prevent excessive rubbing of the row cover on the tops of the plants. As the weather gets colder, multiple layers of row cover can be used to provide a few more degrees of protection.
Row covers should be carefully secured on the edges so that the wind does not blow them off the plants. When using hoops, the tighter the row cover is stretched over the hoops, the better. The edges can be secured with bricks, cement block, heavy timbers, metal pins, or old milk jugs filled with water.