On Jun 13, 2012, penpen from North Tonawanda, NY (Zone 6a) wrote:
First year for growing P. exserta. I started 31 plants from seed. Very easy to germinate and grew quickly. Blooms sooner once they are root bound. Then you can put them in a larger container or in the ground. Hummers are attracted to the blooms.
This plant has been said to grow in the following regions:
Richmond, California Barbourville, Kentucky North Tonawanda, New York