Rick I just noticed this thread today. I love Lavender and had tried to grow it several times here. Previous years I bought nursery plants and they always died during the winter. March 2009 I bought a package of seed to try once again. I started a six pack inside but only 2 of my seedlings survive to be planted outside at the end of May. They both grew very slowly and were still pretty small come fall, I figured that they would never make it through the winter. Both plants survive and even bloomed this summer. I really need to move both plants as they are in too much shade.
This is the variety that I have "Dwarf Munstead", it's very fragrant and would be a good size for pots.