Posted: 02/07/2013 at 20:14
Hi darren, I've not collected seeds off lupins but I would think that you have to wait until they dry naturally on the plant. Lupins have loads of seeds, I cut a lot of yesterday so you would only need to keep one drying flower/seed spike to have loads of seeds.
When I've grown them from seed I didn't scar or soak them, not sure how long they keep but I would think you more lilkely to get good results with fresh seeds. Have tried to take cuttings rather than grow from seed? This is just a thought......I grew some from seed last year and they are still tiny so no flowers will have to wait until next