Japanese fern

I thought mine had died, but kept the pot and lots of baby ferns grew - but they are all plain green! They look exactly the same shape leaves, just green instead. I think I'll have to buy another!

How odd! Are they still very small? I wonder if the colour will change when they get larger?

My Japanese fern appears to die off each winter but comes back good every spring, never grown any bigger than image in photo.

Just planted several of the Japanes Painted Fern. Like very much. Are they relatively fast growers? They don't seem to be changing much. I'm looking forward to them growing full as yours. Is that Dead Nettle next to it?

All the ferns in our garden die right back during winter and start coming up in mid spring, so there's a lot of breath-holding at the beginning of the season.
I don't know how fast they're supposed to grow (just got this one last summer), but it probably depends on a range of conditions. My sister-in-law's fern had such a late appearance this year that she thought it had died. It's now making a recovery. My parents have had one for over 10 years and it's the same small size as when they got it (maybe it's at the point of shrinking?). This one is a good 30% larger than last year, but it really was a healthy strong specimen when I got it.
Yes, that is dead nettle on the one side - it's not doing quite as well as the fern. I don't know how quickly they're supposed to spread, but I may just go buy another one to keep it company and fill in the area.