I purchased 6" stick of lucky bamboo stick last summer. It had a
1/2" sprout coming out of the top side. Per instructions, I have been
changing the water (using rain water) every two weeks and keeping it
in bright light, no sun. I have it growing in a glass jar, half filled
with gravel with temperatures around 65-70. The top quickly grew new
green leaves, but now it has stopped growing. I went back to the
dealer, and he said "they behave that way." I asked if potting it in
soil would help make it grow, and he said that it would die if I did
that because it needs constant moisture. Anyone know how to grow a
large lucky bamboo? And, how do some grow in spiral shapes?