Available from - Regan Nursery in Fremont, CA
regannursery.com

I am in Houston where for most roses it is a challenge to cope with the heat and gumbo and takes on average about three years before a rose decides if it really wants to live or die. Astronomia hit the ground running and has not stopped. It's about four years old. It has a huge spring bloom, followed by several smaller flushes with scattered bloom between. It always has a few flowers except in the darkest part of winter. Blossom size dwindles very little in triple digit heat. Also it keeps its leaves for a long time; they don't blackspot till the very end of their long cycle, there is always new growth of canes and leaves and I new foliage is reddish and quite beautiful. The flowers do well in a vase if cut in bud. As part of an experiment with a forsythe pot, I tried rooting some pieces of a long pruned cane this winter and I noticed it gets lots of quite substantial roots very fast (more, faster and bigger roots than the iceberg and natchitoches noisette cuttings I put in the forsythe pot with it, over a time period of about four or five weeks). The cuttings never dropped their leaves which stayed blackspot free through the rooting period and after I potted them up. Perhaps its root building capacity is its secret. I have noticed china rose cuttings are also easy fast substantial rooters, and these are generally reliable in Houston. 2022 note: now has lived through Harvey and several summers of neglect and little supplemental water and encroaching shade. Dwindling in size, some dieback, but new foliage still extraordinarily beautiful. I am going to move it to a better spot this year and see what a wee bit more sun and water will do for it.

Also while we're at it: Grand Prix de la Rose SNHF (French National Horticultural Society) 2008 - 1st Prize - Floribunda.
Quite an impressive list.
Thank you.