Answer: The seeds of lobelia take 15-20 days to germinate at 65F to 75F degrees. It sounds as though you've done everything right, from pre-chilling to providing light for the seeds, so it should just be a matter of time before your seeds germinate. It's difficult to predict the germination rate of any particular batch of seeds, but the percentage should be higher than what you've experienced so far! Hope by now more have sprouted!
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