I'll let someone else address that, since I don't claim to know. I've read some dubious stuff about peroxide, claims that it can do everything from sprouting seeds to curing cancer, so I think it's hard to know what is reliable information and what is just goofy stuff. Understand, I believe that peroxide might help seeds sprout, just not sure how much to use, how long to soak because the claims vary so much and some reports are so outrageous.
Woofie, did you file or nick the seeds at all? Doing that before soaking can make them swell much faster.
Sandy, when wintersowing big seeds like 4 o'clocks, if sown in winter they can rot after being in cold wet soil for months. It's not a problem with small seeds, just those really big ones. Sometimes those do better if sown in spring when temps are warmer. I had that happen- those sown in winter rotted, that same batch of seeds sown in spring did great.
Karen
