My coleus cuttings are not rooting. I put one cutting, dusted with rooting hormone, in a cup of moist vermiculite, covered in a plastic bag and placed in a north window. They may get a brief time of morning sun. The temperature is about 65 degrees. The cuttings are not wilted, but have produced small flowers which I pinched off. Why are the cuttings flowering and not rooting?
I suspect insufficient light and warmth. I always root cuttings indoors under fluorescents, and always have nearly 100 percent success, even with plants that are supposedly hard to root, like bay (Laurus nobilis). My winter temps indoors never fall below 67 degrees F, and when the lights are on the temperatures in the rooting containers are several degrees higher.
It might also (or alternatively) be that your cuttings are respondingly negatively to long nights/short days. My cuttings lights are on for 13 to 14 hours each day.
'respondingly'? Note to self - never post to Usenet after two in the morning while fighting sleep and waiting for the cat to come home.
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