My wife has 2 poinsettias that she has had for 2 and 3 years. She cuts it back to about 6" when "Christmas" extended is over and plants it outside when it is warm enough in northern Kentucky. They grow from that 6" up to about 24-30" and about 2-3' in diameter during the summer and early fall. When frost threatens, she brings them in, puts them in our enclosed sunporch and lets the red happen even further. One is going out this year, as the pot, which has to be increased as the plant gets older, is getting too big. But we got 4 in one pot this year, 2 red and 2 white, so I think she will keep one of each and we'll have red and white this coming Christmas.
My wife has 2 poinsettias that she has had for 2 and 3 years. She cuts it back to about 6" when "Christmas" extended is over and plants it outside when it is warm enough in northern Kentucky. They grow from that 6" up to about 24-30" and about 2-3' in diameter during the summer and early fall. When frost threatens, she brings them in, puts them in our enclosed sunporch and lets the red happen even further. One is going out this year, as the pot, which has to be increased as the plant gets older, is getting too big. But we got 4 in one pot this year, 2 red and 2 white, so I think she will keep one of each and we'll have red and white this coming Christmas.