Don't do anything. Even in my subtropical climate, stevia dies back almost to nothing every winter. Occasionally just a few leaves with remain, but mostly it's bare stems. I chop them back to the soil level, and over winter it still stays outside (we get no frosts here) and I water it just enough to prevent the potting mix from drying out completely. Come spring, up she pops again. You'll be better trying to take cuttings in spring, but I've never had much luck with stevia cuttings, especially tip cuttings.

From my reading, Paraguay's climate is not unlike where I live - subtropical in most of it. You need to read up about it and try to emulate those conditions as much as possible.

Even if your plant doesn't come back in spring, don't give up on it. I've known stevia to lie dormant for about a year, and then decide to resurrect. Just keep the soil from drying out completely, but don't over-water it. While it's asleep, you're looking after the soil, not the plant.

Here is a link that might be useful: climate in Paraguay

Thanks! I'll not let them dry out completely and hope for the best come spring, all of 8 months away! (June here for temps they can live outside in and safety from frost) How long do yours stay dormant in your climate?

Ellie

Couple of months, maybe. If that.