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.
Methods Using Common Household Items. Sometimes cream of tartar will help to remove set stains from old linens. Mix 3 teaspoon of the cream of tartar per cup of water and boil your linen in the soup for a few minutes. Rinse in cold water and allow to sun dry.ethods Using Common Household Items. Sometimes cream of tartar will help to remove set stains from old linens. Mix 3 teaspoon of the cream of tartar per cup of water and boil your linen in the soup for a few minutes. Rinse in cold water and allow to sun dry.
Removing Tea Stains with Dishwasher Detergent. To remove tea stains from dishes, cups, bowls, teakettles, etc., try this method. 1  Use 1 teaspoon of dishwasher detergent to a cup of very hot water. 2  Dissolve and soak the stained item for a couple of hours, even overnight.3  Then wash as usual. 4  The stains should be gone.emoving Tea Stains with Dishwasher Detergent. To remove tea stains from dishes, cups, bowls, teakettles, etc., try this method. 1  Use 1 teaspoon of dishwasher detergent to a cup of very hot water. 2  Dissolve and soak the stained item for a couple of hours, even overnight.