I feel I've heard a better possible way to say this italicized part before, but I can't remember it:
Its petals are either yellow or pink(at least so far it's been like that).
Thanks.
"
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Were you thinking of, "Its petals (have been) either yellow or pink up to now."