Hey Ygg it's this loser coming over to review again.

I interpret this as the fact that even in war, or chaos, life goes on or finds a way to continue. . .kinda like lichen. (Weird right?)

This almost made me spontaneously burst into tears. Should we have to pay that price for such things? Why can't we just communicate?

Nice imagery, it makes me think that the flowers could resemble hope, where tragedy has happened may there be hope - that's the theme I think happens here. I like the vague use of flowers but it makes me think of poppies. I think that's because I naturally assume flowers to be poppies when it refers to war. Beautiful haiku, such few words can describe so much. Great job.