I just bought two hibiscus plants, one says Pinot Noir and the other says on the bottom of the container Tradewinds. I'm not sure if that's the type of hibiscus, but it says they are perennial. Can I plant them in the ground now, and if so, what should I do to help them grow? I'm confused. I thought these plants didn't thrive in winter. I didn't plant them yet. It did say perennial. Thank you.
You need to determine if you have a tropical Hibiscus or a Hardy Hibiscus.
Look for the variety on the tag you mention and the growing zone information.
Here are links for you with more information.