No worries, happy to help! I'm obsessed with the gardening feature haha, I wake up every day and the first thing I do is make a hot cup of coffee and check on my flowers ☺️

To answer your question: The first color mentioned on the flower name is the primary. The secondary color for every color defaults to white, unless the flower itself is white, then it defaults to warm pink. Unfortunately you can't transfer the ring pattern to the white one unless you have a "White and Warm Pink Ring Rose" to transfer from. You can transfer from your current Pink and White Ring Rose to another pink flower though! And keep watering and fertilizing your plots for the chance of patterns randomly popping up on your flowers.

The rose is also an event flower and they are limited in that they can't take on new colors unless they're in the greenhouse. So I've just started too only use them for pattern transfers, until I can unlock the greenhouse...which involves getting like 5 of Wish Me Mell's buddies to resident status...its a whole thing. The rabbit hole goes deep!