I planted my lavender seeds directly in the soil, but I read there was a different way to make them grow - through stratification.
Stratification helps seeds "think" that winter is gone and it's now spring - time to grow! For this methodseeds require to be soaked in water and put in the fridge for few days to several weeks, depending on the seeds.
It's been almost 3 weeks since I planted mine and I see a couple of sprouts, but I'm not certain that's the actual plant or some random weeds, so I'll wait and see... If nothing happens, I'll try through stratification and see what I get.