The cluster of caixin flower buds
One of my caixin plants finally started producing bunches of flower buds! They look like broccoli to me 
The downside of these clusters of buds is that the dastardly caterpillars have a lot more nooks and crannies to hide in. The day after taking this shot, the buds were partly eaten and covered in the sticky web-like threads that the caterpillars produce. Somehow I don’t think I’m going to have the pleasure of collecting fresh seeds… 
Another look at the pristine flower buds before the caterpillars got to them
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Hi There! Help! I found two caterpillars on my plant, can you help identify it!
http://somethingboutrenes.com/2011/07/18/creepy-crawlies/
hi serene, took a look and agree that those are probably moth larvae. The little green one wreaks a lot of havoc here, and I usually remove all caterpillars from my plants. They’re just too destructive. Believe me, if I knew which moth or butterfly was responsible for wrecking my plants, I’d be chasing them with my badminton racket! Sorry I can’t positively identify the caterpillars for you.