Here are some websites I have found incredibly helpful in my gardening journey:
Gardeningknowhow.com – So much great advice on various plants on this site. I use it all the time when I’m doing research.
Extension.Purdue.edu – This site is full of information about everything you could possibly want to know about your garden and growing plants. It also links to all sorts of events around the Indiana area.
Garden.org – This site has a ton of information about gardening. One of my favorite features is the Plant ID forum where you can upload a photo of a mystery plant and people on the forum will help you identify it. I have had great luck finding answers on here.