Unfortunately, I have become an expert at what does NOT work. Chances are, you may be an expert too. Until I had an encounter with this mean, hateful fungus I had no idea it was so difficult to get rid of! So hereâs what happened.
If I look at the hardiness Zone map it looks like I'am in zone 7 (light green)on the farmers almanac map. But when I type in my zipcode for farmers almanac it says I am zone 5. Which in my mind is a big difference so How am I to know which zone to go by.
Delphiniums, which often suffer in our heat, are rated 6-1. Much of central Illinois is zone 6 so as you can see we are on the top range of heat that a delphinium will tolerate. Since the heat zone ratings are fairly new they are not listed as regularly as hardiness zones.