Please note that if you live in the USA you will need to apply for
a 'Small Lots of Seed Permit' and send it with your seed request. Your
permit will be valid for 3 years, and the suggestion is to arrange yours
now before the rush. You will need to send a completed form with your
seed request and a self addressed label.
This form is available online at : http://www.aphis.usda.gov/ppq/forms/ppqform587.pdf
Notes to help with application are available at : http://www.aphis.usda.gov/ppq/Q37/smalllotsseed.html
Note that no Androsace are on the 'prohibited plant' list and none
are invasive