The Florida Garden Forum is pretty busy but of course tends to focus on plants in our state. You can ask questions and will probably get a number of responses within a few hours.

It's worth a try. Just go to the Garden side of the forums and look for Florida Gardening.

Geeze!
Did you try the Mid-Atlantic Gardenng board?
It's predominantly populated by people in the Washington, DC area.
We just had the 8th or 9th annual trade, as a matter of fact.

What's your area?

The perennial board is always very busy and we even answer non-perennial questions! :) Welcome if you come!

Climate is SO important, but a pretty active one is the cottage garden forum. I haven't checked in for a while, but there's a north Florida gardener who has been very active, bringing the average farther south. :)