Started New Rose of Sharon plants from seeds same bush. Why are new plants blooming white, purple, and pink (orginal plant w

Question

Orginal plant white seed produced one white tree, one pink tree one purple tree

Answer 1

The color to rose of Sharon is variable; you might say unstable. This is especially true of seed that comes from a hybrid plant or one that was cross-pollinated with a different colored rose of Sharon. Hybrids, like cross-pollinated plants have 2 (or more) different parent plants so the seed will have different color genetics, just like our children. To reproduce white flowers, try stem cuttings.