I agree with Disneyhorse that the question was "possible to root a cutting without heat mat?", and HAS BEEN ANSWERED "Yes its possible to root without a heat mat.". Ive been collecting, rooting and growing plumeria since 1979, and found that there is no absolute with plumeria depending where you are growing your plumies (Micro climates). What works for one person may not work for another depending on the variables. So again the question was answered, it's not an absolute that you have to use a heating mat, but that it may help depending on your variables and micro climate. Lynn, What is a C4??? Sounds like a JJ's Plumie..lol

Hi Ron - That looks to be well callused. So I would re-root as is in a clear cup or water bottle with holes punched out at the bottom. This way you can monitor the rooting activity without having the urge to lift out the cutting to check for roots. The bottom portion with roots is probably a seedling. You can pot that up. It will most like produce 2 or more tips and form a small tree. Good luck to you. ~Kasie

Hi, Ann ... Please visit the adenium forum when you get a chance. Since you are the original poster, I'll answer you here. If you sowed 19 seeds and they all germinated, that is an outstanding germination rate. The seedlings look healthy ... Congratulations! Regarding the 3 that may be dying ... I believe what I see is 2 seedlings with damaged shriveled tips. Usually, what causes this is pulling on the seed casings or "hats" ... I have just killed one doing just that. It's best to defer from this practice. The casings will eventually fall off on their own. Once the tip is damaged, the seedling cannot produce leaves for photosynthesis and will begin to lose color & die. The white seedling is an albino and will die for the same reason. Enjoy your remaining seedlings. I hope you get a nice variety of blooms. The yogurt cups will keep them for 3 months, after which you can pot up to 3-4" pots. The above photo was to show them in their yogurt cups ... they get cuter & fatter. Here are the same seedlings at 4 months old. Some of my vintage german dolls wanted to say hello: - Maria Elena

I haven't personally tried my adenium or plumeria in gritty but some like it and some don't, with the main factor probably being how hot your plants get during the day. I'm in Texas and Kms2 is also, he has tried his plumeria in the gritty and they did not do well, the heat was way too intense for them and he couldn't even get them through a hot summer day without them looking like they were collapsing. Laura in VB (Virginia Beach) has all of hers in pure gritty and they are gorgeous. You'll have to see what works for you in your area but a well draining mix is the goal - sounds like you are very familiar with well draining given your supplies on hand. I use potting soil, perlite and some compost (basically bark) in my mix. Others will vary their recipe depending on their watering needs & climate. You'll have to experiment / acclimate a bit and keep your eye on the plants to see what they can tolerate. I'm sure others can offer you some great advice also. Please keep us posted as this is such a common question for a lot of people and I'm sure others can gain a lot from your experience.