In article , zxcvbob wrote:

I planted some Japanese painted ferns a week or 2 ago; 5" pots. They
are starting to grow, and I wonder how to feed them. 1/2 -strength
Miracle Gro, or full-strength fish emulsions, or what? How often do I
feed them?

Thanks, regards,
Bob

In soil that started out good & rich & which gets an annual topcoating of
composted manure or leafmold, there should be no reason ever to fertilize
most ferns at all. Evergreen ferns like deerferns or Japanese tassel ferns
can be severely damaged by fertilizers; the deciduous ferns like your
painted ferns MIGHT benefit from a once-yearly (spring) half-strength
slow-release low-nitrogen fertilizer.

Fertilizers high in nitrogen cause them to look & do poorly. An autumn
topcoating of manure compost, or of leaves on moist soil which permits the
leaves to break down into leafmold by spring, is frequently all a fern
requires.

In containers fertilizing needs will be higher (& trickier so as not to
overdo it) but in the outdoor garden, always think "less is best."

-paghat the ratgirl

--
"Of what are you afraid, my child?" inquired the kindly teacher.
"Oh, sir! The flowers, they are wild," replied the timid creature.
-from Peter Newell's "Wild Flowers"
Visit the Garden of Paghat the Ratgirl: http://www.paghat.com