Beginner Gardening: Is spiderwort supposed to do this????, 1 by stimmins

stimmins wrote:
Hi all: planted two spiderworts for the first time this summer (Tradescantia 'Pauline'), supposedly identical, and they did look exactly alike for awhile, but then one went absolutely crazy, grew to almost three feet, had these bizarre-looking (but interesting) stiff shafts of something or other coming out everywhere! It all flopped over (from the weight I guess???) Then I wondered: is this thing supposed to creep along or something? And how come the other one didn't do that?? I have since looked it up on the plant files here, and though I haven't found 'Pauline', I have found things that look close enough. According to the plant card that came with it, it should only get to about 2 feet, but this one is closer to three feet. I've had to cut it down to nothing because it looked like hell all flopped over like that. The flowers certainly didn't get very big, though the numerous clusters were rather pretty. I'm attaching pictures (after I cut it all apart), in case anyone can enlighten me as to what happened and/or if this is normal???