All species occur in the summer-rainfall areas, except for Z. odorata at Nieuwoudtville (winter-rainfall) and Z. aethiopica which is widespread and commonly found in marshy areas.
Dzoṱhe hedzi tshaka dzi vhonala tshilimo mvula dzi tshi khou na nga nnḓa ha Z,odorata kha Niewoudtville[tshifuna dzi mvula dza vhuria] na Z.aethiopica tshine tsho phaḓalalesa fhethu hune ha vha na matope.