TerraForums Venus Flytrap, Nepenthes, Drosera and more talk
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Speaking of U. longifolia, I have one with about 6" leaves, and 1 leaf bent over and stuck against another pot where obviously there is a lot of moisture, and there are little 'roots' or whatever they are, just forming at the tip of this 'leaf'! I wonder if I can press the end of the 'leaf' into another pot of substrate and get another plant? These plants are so amazing.
Ludwig most utrics have this ability to easily be propagated from leaves, which means you must be careful when you keep them next to each other (especialy the small types which look alike when not in flower) as they can jump into eachothers pot when you water them. A single leaf knocked loose and floated into another container can contaminate another species. That's part of the reason I like these larger types as they're easier to differentiate when they aren't in flower (plus the often have larger flowers!
As far as different conditions go, the plant was very root bound. The nights had been colder for a few weeks, we had a really cold spell prior to the flowering. Also the plant was at almost the end of a wet to dry alternating cycle, although it was still in about 1 cm water. Photo period was at about 11-12 hrs. when the flowering initiated. Also writing complaining letters seems to have helped, I wrote asking someone who routinely flowers this species how he did it. 3 days later I noticed a scape.