Frost is happening in the Northeast

It is getting down to temps low enough to create frost now in the northeast at night. If you have plants you want to be able to enjoy for a few more weeks you really need to cover them at night. You can use any light material and something as simple as a few small rocks on the edges of the material to hold it from blowing away in case a breeze comes up during the night. A lot of people don't realize that frost actually falls down and lands on the plants. It isn't always the temperature that kills the plant it can be the icy frost landing on the leaves. Some plants actually thrive with very cool temps at night and rebounding warm temps in the daytime. We use old saved bed sheets or curtains to cover all our vegetation that we want to keep until the temps drop to the point of freezing and kill the plants for the season. Now is a good time to get building the permanent plant covers.
Any perennials you have deserve to be protected so they will be here for many years to come. You can find sources for cover making material at many construction sites like a new home being built. If you go there and ask the contractor, he will usually have waste pieces left over from sheet goods that they wind up tossing in the dumpster that are quite often large enough to make great plant covers. Grab a couple of old barn door style hinges from the hardware store for a couple dollars and a couple of bolts and nuts too. Drill a few holes and hinge two pieces of material together and you have a cover you can use for several years for less than $5.00. Give your plants a fighting chance against the snow loads and the cold and save money at the same time by not having to replace plants unnecessarily.