bob,
that's why i usually root in the spring. my study is around 70-80. they root quick. but thing is they root quick, but they dry quicker and they rot quicker too.
during the spring, that's not an issue. since it roots quick, i move them outside quicker with fresh air and sun. but this time around doing winter rooting, not of my cuttings in cup stayed indoor. controling the moisture has been an issue. don't get me wrong, some are still going very strong, but i'm sure i lost Noire de Caromb and that bites me big time.
at the start the the fall, i got some rooted cuttings from very generouns members. i put them directly into 1 gal container and left them in the garage. they are not putting on the leave and doing very well. they were not full grown plants. just cuttings with good roots.
since that was the case, i moved some of my cuttings with good roots and put them into garage, but they all died. i think the garage temp wasn't warm enough.
so what i've done last week as i put one Panache cutting that was in baggie directly into 1 gal container and put it in garage. that's the test subject. if that one makes it, rest will have some chance.
what i think has happened was that the branches and leaves that were grown inside is not used to lower temp and they are getting damaged. if they branches and leave are grown in cold temp in garage, they might have better chance.
also, the air temp should be lower than the temp side of the pot, so it might promote root growth before the top. just taking wild guess. but if it works, it will take about 70% of my cutting work with it.
this winter, the lowest we got was something like 20 degrees at night. that's still above freezing in my garage. and during the day time, lowever it got was also 20.. with sun hitting the south side all, the side of the garage was well over 35. i'm hoping that will do.
i'm sticking to spring rooting for anything very special from here on. that means i'll have to go back to finding storage solutions. it seems good varieities are more available in fall.
my failure this winter has been mostly due to moisture control once the cuttings were in the cup.