Pinellia

[Jean Halverson]

I received seed of P. tripartita and cordata from a seed exchange.  How long do they
take to reach blooming size? I let my Arisaema spend a 3-month dormancy in the
refrigerator before replanting indoors to speed up their growing cycles.  Is that an
option with Pinellia?
I had some about 15 years ago (I forget which species) but must have started with seed
and must have just planted them outdoors.  A few bloomed for a year or two and then
dissappeared.  My Zone 5a climate may have proven fatal in a year with little snow
cover.

Jean Halverson sw Wisconsin where the temperature finally dipped below 0 but fortunately
about 3 inches of snow fell a few days earlier.