Here are my top 4 picks for getting quality information on gardening as well as hanging out online with some like-minded green thumbs.
Feels more Reddit than standard old “how to grow a tomato” type discussions. If you are after a mixed crowd of young gardens as well as old hands having a bit of fun with stories and jokes included, then this is the place for you.
Organic Gardening Community
This is a cool little forum with a medium-sized community. There are threads a little more offbeat than you would expect from regular forums on gardening. They discuss topics like recipes, seed into, crafting, herbs, and spices, as well as native plants and butterflies and of course, everything organic.
If you are after a community that is a little more offbeat and you are up for anything, then this is the forum for you.
National Gardening Association
As you can imagine this is a popular site and a HUGE forum with very specific discussion topics from Orchards to Florida gardening. There is even a thread for Beekeeping and insect ID. If you want to know something about gardening, chances are someone else has asked the same question and it has been answered here. Well worth a look.
This is focused on watering, irrigation, sprinklers, hydroponics as well as other gardening topics such as Soil, Pesticides organic, or other, as well as a buy and sell forum for farm machines.
This is a fairly small community of gardeners, but if you wanted to join a forum where you can get to know the gardeners by name, then this is the place for you.