I think about my gardens all year round. Because this will be my second year starting up, I have a huge list of "To Do's" I have my fall bulbs to plant for my early spring color, a lot of clearing and dirt amending to do, you name it. I will be shopping for seeds and starting seeds in my greenhouse early spring. But planning and prepping all winter.

This is the time to collect seeds from many perennials and some annuals now. Or take cuttings of annuals and root over the winter inside or a garage.
Organically to me anyway, isn't hard. I don't use chemicals except round up and I remove dead leaves and stalks from plants that would have certain bugs : ie, cannas and iris do better if you clean up in the fall instead of spring. Gets rid of bugs harboring in the leaves. This rule doesn't apply to everything because some plants need the winter protection.
Also, I use natural mulch which gets dug into the soil all the time. That's all for me. It's not so much about what you do but also what you don't do.

I went ahead and direct sowed larkspur and poppies this past week, along with planting my Dutch iris and Allium bulbs. I didn't add anymore daffodils or Spanish bluebells, but would plant those now if I wanted more.

I'm collecting seeds from verbena, gaillardia and anything else that is ready in my garden.

I've already transplanted perennials (a few weeks ago), but didn't finish dividing all of my Japanese irises like I should have.

Once we get a freeze (probably next week), I'll cut back my colocasia, ginger and brugmansia and then cover with mulch for the winter (I'm in Chapel Hill).

I use only organic products, mostly from Espoma.

Hope this helps,
Cameron

Here is a link that might be useful: Fall planting for spring flowers

If you plan on winter sowing, you may want to start collecting plastic containers, punching the required holes in them, and buying whatever soil you use. I usually don't do winter sowing until January and last year could not find the good soil I have used...had to buy a cheaper but not as good product and the seeds did not germinate well in it. I am probably going to do more direct sow and fewer containers of winter sowing this year. I am running out of room for containers since some of my native plants require two years, and those plastic milk jugs are still sitting around!

thanks all!!

Remember to order your seed catalogs now. Dirtrx