Go to:
https://npgsweb.ars-grin.gov/gringlobal/search.aspx?
This is where you search for stuff. In the top left of the page you should see a link that says login.
You created an account to order the scions. Use that username and password.
In the tabs across the top find "My Profile" and hover.
Select "Order History"
You will see all the orders you have placed. Click "view detail" for the order you want to see.
You will see the list of scions for that order. The "Item Status" column shows the status.
Thanks,
Jack