I put a little fence in to hold up these goose necks

THat should help them. Make me think this would be a better idea next year for my snapdragons, rather than a stake for each as it topples. :-)

great goose necks, never heard of them before.

I found all sorts and sizes of fence types at the Dollar Store..cheap and work...good to me :)

Goose necks ( I don't know if it is suppose to be one word or split into two) will spread once they get going, by a network of underground roots.
If you have a large country yard and could plant them way out back or around a pond they'd be wonderful, in a small garden you have to be ready to constantly thin them out and chop away at their roots.
I have the time so I don't mind...though sometimes when I get digging around to plant bulbs or move stuff and I have to chop away at the network of red goose neck roots running all over I do silently curse them...lol..