see http://www.ext.colostate.edu/mg/Gardennotes/731.html#Sage

Here are some discussions about growing it from over on the Herbs Forum here.

http://www.gardenweb.com/gardenweb/query/growing-sage

FBX, I may do that. Not being cheap, I just enjoy growing from seed when possible. I think the trick with growing it from seed is you have to be cruel to be kind. Put it someplace where you forget about it and won't be tempted to water it when it starts to look dry.

Treat it almost like a cactus in the early stages at least. Sometimes we are overly tempted to water things on our windowsills when the soil starts to get dry. Probably fine for most things, but it will kill small sage seedlings. Seedlings also be tempermental about just the right amount of light. Not too much or too little.

At least that is what I seem to be noticing. Seedlings do seem to be tempermental in general compared to most herbs which are no brainers. Once established I'm sure they are easy & low maintenance like the rest.

Most herbs are just good tasting/smelling weeds after all.

I hear you on wanting to grow your own. I even try to grow house plants during winter with not much success although this year I finally grew a china doll. anyhow there are some herbs I just buy annually like oregano rosemary and thyme

Here in 9B most perennial herbs winter over here, except the for the basils, dills, parsley's which are annuals, but usually reseed anyway. So once established you're set and then you can just propagate more from cuttings. Most mints are sterile so you have to buy the plants or grow from cuttings (SPEARmint being the exception). You also can't grow French Terragon from seed. The seeds you get off the rack are usually RUSSIAN terragon which is an inferior variety.