No

About 20 cm wide and deep per plant, in my experience. Or, as Beattie says, "No." : )

Sorry it sounds a bit abrupt - I couldn't think of any meaurements, but they're childs play to get out if they're escaping from where you want them.

They love poor soil if that is any help.

thanks i have limited space in my garden so thats great.thanks everyone:)

Mmm...lovely and peppery nasturtium leaves on bread and butter! Yum! :-)

Once youve grown them theyll come up again seasonally, which I like , through self seeding.