Creating new ferns for jute

I've seen in Phedran's Let's Play that you can grow 1 tall ferns to 2 tall ferns in order to harvest them for jute, by using bone meal or compost. But is there also a way to create 1 tall ferns if you don't find any or already harvested all of them? Just using bone meal on the ground does not seem to create any fern, just grass and flowers.