the next trick is to see if the callus will form roots....

Yeah I don't expect all of them to root, but if I just get ONE I'll be happy! I dipped the ends in a root growth enhancer with mycorhizzae, so I'm hoping it'll help.

Congrats, Beth! I haven't tried this method yet but I will eventually I'm sure. Still working on perfecting softwood rooting.

Ok, time for updates!

I'm not having too great of luck with this! I was amazed and excited when the above batch calloused so easily on the first try. I potted them up in clear cups with regular potting soil and put them in a greenhouse tray with a tall clear dome over it. Left the tray on my back porch. One by one they turned black and died. I'm pretty sure I know why tho. They were fairly long cuttings and I didn't stick them down all the way in the cups, and a couple of them were too tall for even the taller dome I used. So, the dome was not sitting flush over the tray. There was about 2" of air space, so I think the cold air got in and dried the stems out. I didn't mist them either.

I did the second batch of florist rose cuttings and after the 2 week wait, they had not calloused, but were mostly still green. I cut off the black ends and potted these up into a special indoor potting medium we sell at Ace that's used by pot growers. Mostly peat moss, perlite and lime I believe, with the mycorhizzae also. I only kept the cuttings that had swollen budeyes. I put them in the greenhouse tray and added a layer of clay pebbles soaked in water. Made sure the clear dome was flush over the tray. I got a 2-light fluorescent light fixture and put 40w full spectrum lights in, and put a heating pad under the tray. I set the light timer to come on around 4:00pm and go off about 1:00am. Then I put a chunk of my shade cloth over the whole table and light set-up to cut down on the brightness of the light at night (it lights up most of my backyard) and to also maybe add a little warmth.

So far, after a week or more, the cuttings are staying green and budeyes are still swollen. No need to mist, as the wet clay pebbles and the heating pad create a nice moist atmosphere under the dome. I also buried the stems all the way into the cups. I did have one stem last week that got a bit of mold on the tip above the top budeye, and I snipped it off. So far, so good.

Now today I upwrapped another batch a day early, and was very disappointed. There were several stems that turned black, and almost every one had turned black at the base. The rest of the stems were green with swollen budeyes, so I decided to go ahead and pot them up like I did the previous batch. Now with this batch, I'm kinda thinkin' I might not've gotten all the excess water out of the newpaper, and it was a bit lesser quality newspaper also. Not that that might make a difference, but who knows? I'm also thinking maybe when I diluted the Dip'n'grow, I might not've dilute it as much as I should have. I mean there's just so many different factors and variables to consider. I'm just hoping that these cuttings will root anyway in the potting medium and the greenhouse trays.

I still have about 4 more batches of florist roses all rolled up, waiting for the 2 week period. We'll see what happens with those. I'm gonna keep trying, that's for sure. Eventually something will work!

There is a variable that you can't really control with the florist roses: the freshness of the stems. They might be two weeks old when you get them or they might be very fresh.

I have had similar experience to yours: I can get them to callus no problem, but absolutely nothing from then on. I have given up on the burrito method for now, since just sticking stems in wet earth over winter seems to work in this cool soggy climate.

Since you're in California, have a look at Kim Rupert (Roseseek)'s methods on his Pushing the Rose Envelope blog. He has great success.

(Also be aware with florist roses you're probably reproducing patented roses, technically illegal even for personal use.)

That Sweetness is beautiful. It looks like Cherry Parfait. There's a Sweetness on Helpmefind but it's a fragrant mauve, not the same rose.

Here is a link that might be useful: Kim Rupert