PlantFiles: Yellow Morning Glory
Ipomoea ochracea

Original seeds from Reunion Island. Have been growing these for the past few years in the deep south tip of Texas. Blooms appear in Fall and continue through the Spring. Had one vine in a pot that lived 34 months. That one froze completely in December 2004 (we got a freak snowfall/freeze) and I neglected to protect my plants. Others planted around the yard froze to the ground but came back.

Several tendrils quickly found their way under my back gate, grew along the side of the house and then climbed onto a trellis about 20 feet away from the main root. The vines tend to grow really, really, really long.

Seeds sprouted easily enough using the damp paper towel in a baggie method. Threw a few older seeds out along the backyard fence back in June and they are blooming now as are the ones that froze to the ground last year.

~ Cat (south tip of Texas - zone 9)

I haven't actually grown this yet but I'd like to add that the seeds will nine times out of ten not sprout if the seedcoat isn't nicked. I almost learned that too late :)
I have some seeds expanding in water at the moment.
EDIT:seeds sprouted!

Lots of nice foliage but no flowers in my zone 5. This plant needs a longer growing season than I could give. I had visions of wintering it over but they never materialized...