Asplineum australasicum V. musifolium.
This fern is in it's third summer in my backyard in the S.F. bay area. Growing in a coconut lined basket,fed well,it has grown 4' fronds.It was bought in a 6" pot.
I have never had this kind of success before with these ferns...not even close! The right cultivar and the basket are key. Plus,you would be surprised at how much they like to be fed. Hardy to at least 30f with no damage to fronds.
As you can see,a slug magnet..I bait like my life depends on it!..they still slip through,the buggers.