hmmm.. Tig.. my garden grows quite well here in TX. Might want to look into a couple of things like the PH in your soil, what kind of soil you're using, and so on. I re use Coast of Maine soil or HP Promix in my outdoor garden after I've done a run in it for my indoor.
Also your nutrients might come into play. I used Greenleaf Nutrients megacrop and sweet candy for my tomatoes, peppers, etc... it does well. I do cut it by half because it's a little 'hot' for some plants especially early in life.