New to haiku

[SimikPK]

  a haiku attempt:


     cracked cement
    a single wildflower
     parts the traffic

Interesting idea.. can be made more compact. no need to have "single",

cracked cement (what about making this only "a cranny" ?)
a wildflower
parts the traffic

What disturbs me is the shift from not nature to nature and than back. I am not sure, but I think there should be only one in haiku. But I might perceive this wrongly. Let the bearded decide.