Flowers won't randomly disappear either? A villager sent me a black rose once. Hmm wonder how they got that. And I don't send them flowers.
Does anyone feel a little bad when a villager plants a flower and you immediately shovel it up? I wait until they're not looking, though I know they don't really know about it.
I rememeber when I breeded my first purple tulip....
And how Marina took it.