Yes you can freeze it, but it has to be blanched in boiling water (1 minute) remember, rhubarb is the stem of the plant and not the fruit.
Best results are when frozen in syrup, (300g sugar dissolved in 1/2 litre water) pour in enough syrup to just cover.
Eg, 50% off Papa John’s
Here’s what you need to know
Let us know your thoughts!