I have a rooted Thai COT with mottled red blooms. It's about 9" tall. I'd like to trade for a Thai COT with a different color flower. I'd also consider a standard COT if it has an interesting bloom or some type of succulent that I don't have. Here's a pic of the plant I'm offering and a pic of the flower on the mother plant.

Maternut..Wish we were neighbors. I have more COT's than I know what to do with. Can't toss them, but they sure take a LOT of room. When they were purchased, all were babies..Guess I didn't think they'd someday grow larger. lol. Larry. Cold shouldn't harm COT's, but those I recently brought indoors, 'after several nights @ 35F/1.7C, a couple nights dipped 32F/0C, a good number of leaves dropped..Some leaves had frost-bite. But like you said, Euphorbias are tough. Unfortunately, not tough enough to be outdoors for long periods at 32/0. Wonder how OP's COT is doing.

Sommai Tan, your plants are beautiful! Thanks for taking the time to post. Yes, I am familiar with Marie Tran's portfolio, too. Here's a treat for anyone who has never seen her plants: [Crown of thorns collection[(https://www.houzz.com/discussions/crown-of-thorns-collection-dsvw-vd~1791211) [Crown of Thorns in full bloom[(https://www.houzz.com/discussions/crown-of-thorns-in-full-bloom-dsvw-vd~1825405) Carol in Jacksonville

Hi, Rina - Nice to see you! In my original post, you'll see that I cut off half of one tall leggy stalk as a trial & error experiment. I then cut that top piece in half and potted them both after 1 week, being sure to maintain the same orientation on the headless piece. The part with a head (flowers & leaves) never lost a leaf and rooted perfectly. The headless piece never rooted after 3 months so I threw it out. I want to know if perhaps that was a fluke ... if perhaps the headless pieces do root in time and throw up new shoots (new plants!) from the base. Or do they just NOT root at all. I am being annoyingly specific because I don't want to ruin my mother's millis. When I came here to be her caregiver last year (she's 82 and living with vascular dementia), the gardens were overgrown and abandoned. I've restored everything for her and we're surrounded by flowers again. She is always so happy in her garden but can only water now....and enjoy her flowers, which makes us both very happy.