cold stratification

Question

I received great gunnera seeds I bought online and it says to do a cold stratification in my freezer for 45 days. Does this sound correct?

Answer 1

From my research it is best to sow the seeds as soon as they have ripened on the plants.
The seeds do not store well and lose viability.
Germination is best in 75 to 85 degree F with moist planting medium.
Germination can be slow and erratic, so prick out the seedlings when they can be handled and place in individual pots.
You will need to keep in a greenhouse or similar setting until the following spring.

https://www.gardeningknowhow.com/ornamental/foliage/gunnera/growing-gunnera-plants.htm