By Sheilabub
Hertfordshire,
United Kingdom 
Penstemon seeds: I have P. Husker's Red and P. Blue Springs. When is the best time to sow them, and should I keep them cool or in warmth? Thanks.
2 Feb, 2013
Answers
Many thanks Barbara! Worth a try anyway . . .
2 Feb, 2013
Yes - you might come up with a new one! :-))
3 Feb, 2013
According to the RHS, you should sow them in early spring in heated conditions and plant them out in early summer. Apparently, they are unlikely to come true to the parent plant. Good luck!
2 Feb, 2013