I prefer to use Milorganite as a mid-late summer application on my lawn. The Fe greens as much as the N in it. I consider it to be organic, just not natural ,which is not the same thing. It takes 3-4 weeks and 2 of rain/water to work. I do not use it on ornamentals.
You may register your phone number online at https://www.donotcall.gov, or by calling toll-free, 1-888-382-1222 (TTY 1-866-290-4236), from the number you wish to register. Registration is free. Thirty days after you register, telemarketers covered by the National Do Not Call Registry must stop calling you.
To be included on the do not call list, you must call from the number you wish to register. The number is 1-888-382-1222 or you can go to their website at www.donotcall.gov. [Collected on the Internet, 2004] Starting Jan 1, 2005, all cell phone numbers will be made public to telemarketing firms.