Um.. my partner threw out all the plants...

It's winter time over here in New Zealand. And as such, I believe it's
normal for the plants to die back. Unfortunately, my partner did not
read it that way, and threw (our quite expensive) set of plants out.
The whole lot

Temps have been dropping below zero some nights, but no chance of the
pond freezing - we have 4 goldfish that are growing ok, and showing no
signs of missing the plants.

Should I rush out and get more plants, or will it be ok until
spring/summer?

(I would prefer to wait until then when the plants naturally take off
again - as I have a mate that is quite happy to provide a variety of new
plants from his pond for free.)

Cheers for any advice.

--
Duncan