It’s more about how swelled out the calyxes look than the hair colour
new white hairs pop out over the top of the older orange ones constantly throughout flowering, but production slows down towards the end allowing the mature orange ones to be seen as they “catch up”
new white hairs pop out over the top of the older orange ones constantly throughout flowering, but production slows down towards the end allowing the mature orange ones to be seen as they “catch up”