and depends on where you are, florals on top can get moldy. I'm in tropics, so it's always hot and moist. I've done 2 soaps with florals on top. and never again here. they just get gross and I have to cut them off.
lavender buds and rose petals go brown. the rose even went as far as black. there was somebody here (AnnaMarie was it?) who had great success with rose petals not turning brown. the buds are okay though, they stay true.
I should be ok then - they are dried Eucalyptus leaves and I live in a dry as heck province. Raining now, but that's only because it's monsoon June.
The only way I will attract soapies (soap groupies ) is if my soaps look nothing like the plain hunks of colour in the local shops. Not that I want to share this one, it's my favourite fragrance.