Torbjörn Svensson Diaz wrote:
Hullo!

Would ferns count as weeds? Do they prolifirate aggressively? If I
plant a lot of ferns in a garden will my neighbours be mad at me? Will
the ferns spread to my neighbours? I like fern-coated trees but if
they destroy neighbours' gardens I don't like them so much anymore.

Are there different kinds of ferns, some of which are suitable for
gardening and some of which are not?

Best,

Any plant counts as a weed if you don't want it or it's in the wrong place.
Where are you thinking of growing these ferns?

Ferns most certainly can count as weeds, but are usually pretty easy to deal
with. Most will come up with their roots with a bit of digging. (However,
some are invasive - like bracken - as their rhizomes spread underground far
and wide.)

There are many good nurseries (eg see http://www.fernatix.co.uk/index.html)
specialising in ferns which are very attractive, with fronds which are not
only shades of green. Have a look at that and other fern sites for more
information.

--
Jeff