Reproduction; Splitting Your Lotus
Lotus are vigorous growers and will quickly grow
to fill (and overfill) their containers.  When they
enter their dormant period in the winter, remove
the pot and separate the runners to get lots of
baby plants.  The diagram to the left shows what
your cutting should look like after you separate it
from the parent plant.  Noted Confucian Scholar
Zhou Dunyi said,
"I love the Lotus because,
while growing from the mud, it is  unstained.
"  
We're pretty sure that noted Confucian Scholars
didn't spend a lot of time
transplanting Lotuses, because after a full growing
season in the mud, separating the rhizomes will be a
very smelly, icky, and generally yucky process.  You
dont have to do it, your plant will be ok for a few
seasons but will rapidly burst its original pot and grow
to fill your pond… and if you thought it was bad to thin
a single plant after one season, try it when the plant
is grown to weigh half a ton with hundreds of feet of
tubers.  Exponentially yucky, if not outright
impossible.

Plant your rhizomes as shown in the drawing to the
right, with the shoot sticking up and the rhizomes and
roots just under the soil.  Place a large rock on the
rhizome to hold it in place - it doesn't have to be
purple.
 Do not use gravel, or you'll be picking them
up one-by-one when it comes time to split it again.

Fertilize it with water plant fertilizer tabs when you
see the shoot break the surface and unfurl itself into a
leaf.