Will guppy grass and/or hornwort overwinter outside?

[JettsPapa]

Hello,

I set up some tubs outside this spring for the first time, with guppies and shrimp.  They don't have any filtration, but have abundant amounts of guppy grass and hornwort.  I'm in southeast Texas, so while the temperature will get down into the single digits once every 10 - 20 years, we go years with it never getting below 25°.  I know I'll need to bring the guppies in long before that, but I'm wondering if I can leave the tubs set up with the plants in them to get a head start on next spring?

[Hobbit]

Well I’ve got a pond that I’m going to leave out with anacharis, hornwort, and a co-op lily. I have no idea what will survive but I guess we’ll find out together! 😄 

[Scapexghost]

Hornwort and guppy grass can both be found in Canadian waterways so im guessing theyll be fine. Youll surely get some die off but they should come back pretty quickly come springtime.