Although this plant is advertised as an annual in the seed catalogs, it's actually a tender perennial vine in Southern California. Mine is still lush and green and flowering in mid-January. After ten months, four plants have completely covered a trellis about 4'x6'. This plant seems to grow well in both sun and open shade. Seeds are easy to start but tangle quickly in paks. Maybe this is why I never see it for sale at the nursery.
On Dec 7, 2008, marasri from Dripping Springs, TX wrote:
I grew it in barely improved alkaline limestone soil and caliche combination, with minmal irregular watering during a drought with 45 days above 100 degrees and no rain, partial sunshine with some western exposure. TOUGH plant. grew to 8" and bloomed all summer in waves.
On Aug 6, 2007, moonlightgarden from Pacifica, CA (Zone 10a) wrote:
This vine is a showpiece of my coastal garden. It completely blanketed a 12 foot wide trellis the first year and flowers constantly. In my garden it receives a variety of different sunlight exposures, from full sun to dappled light to partial shade, and seems fine with all of these. In the winter, it drops a few of its leaves but is still pretty lush, and there are even some flowers here and there. I just love this vine and look forward to planting some of the other colors!
We have been growing this plant in a pot for years up in Seattle. We don't take it in in the winter and it survives just fine. I think I'll move it to a warmer wall and see how it does next year. Right now it's only a 1.5 ft tall and blooms only sproadically.
On Oct 25, 2002, ohmysweetpjs from Brookeville, MD wrote:
Very very pretty little jewels of flowers. I love it. Very hardy too, makes a good houseplant. I nearly killed it but it sprung back up.
This plant has been said to grow in the following regions:
Pacifica, California San Francisco, California Bradley, Florida North De Land, Florida St Cloud, Minnesota Mathiston, Mississippi , Missouri Averill Park, New York Lenoir City, Tennessee Austin, Texas (2 reports) Center, Texas Cleburne, Texas Dripping Springs, Texas Kalama, Washington Madison, Wisconsin