My wife just bought some herb plants and wants to plant them in a planter outside. We want to know if it's too late in the year to do so.
Is It Too Late to Replant Herbs Outside in Rhode Island?
No, you can plant them outside anytime you want. When cold weather comes they'll die back, but you'll have them till then. If you move them indoors before frost, put them in a sunny spot, and they may well keep growing over the winter. https://www.gardeningknowhow.com/edible/herbs/hgen/growing-herbs-indoors.htm