The Blossom Controller is updating its firmware.

Allow the Blossom 10 minutes to complete updating its firmware. It should reboot automatically and return to normal operation in a few minutes. If it does not and after waiting 10 minutes and your Blossom still shows a purple light, your  network may be down. Check to see that you can access web pages on your computer or on your phone via Wi-Fi. If your network is up and running, disconnect the Blossom Controller’s power cord, wait 30 seconds, and plug it back in.

After restarting, the Blossom LED may turn purple again to complete the upgrade process. It should complete and reboot when completed.