Cornwall, United Kingdom
I am growing Penstomen 'True Blue' from seed and the seedlings are growing extremely slowly: after six weeks they finally have a second set of tiny leaves. They are on a sunny window sill in the kitchen, and because they still look so delicate I cover the tray with a propagator lid at night. Is there any chance they will flower this year? Am I doing anything wrong or are they usually as slow as this? Thanks for any information.
- 13 Apr, 2010