I found a package of these and sowed them...wow, they come up fast and every day they shoot up higher and higher.
Anyone have experience with these?
My experience is that they always die. Sorry.
I keep trying, though.
That's been my experience, too - they come up just fine, but croak soon thereafter!
I grew these vines from seed I received in the seed exchange here in the lower mailand of B.C. Canada. They grew hug and flowered beautifully ! I even harvested lots of seed from them. The next year it grew like mad and then croaked ..... But it was a different climate, as i had moved 500 K north the next year.
I've had a lot of success with this vine in Central Ohio. It doesn't get really huge for me, maybe 6-8 ft, and it's never self-sown, but it's been fairly reliable in an west-facing spot with some afternoon sun.
If you are talking about Tropaeolum peregrinum I found them very easy to grow from seed. I had mine in a window box and they bloomed like crazy but never produced any seeds. If I grow them again I'd give them something to climb on instead of letting them hang because they got to looking a bit leggy towards the end of the season.
Same as all the rest, again, mine didn't reseed, so if you have extras....email@example.com we can trade something.