ɪt ʃˌʊd biː dˈʌn sˈʌmtaɪm ˈæftɚ ðə fˈɜːst flˈaʊɚz stˈɑːɹt tə ʃˈoʊ ænd pˈɑːsᵻbli ɐɡˈɛn ˈæftɚɹ ɐ fjˈuː wˈiːks.
It should be done sometime after the first flowers start to show and possibly again after a few weeks.