Research on plant triggers that cause budding, flowering and fruiting is not all well understand. Here is a post that may show some light on a plant’s ability to bud at a certain part of the season, flower, even on the same day as all it’s relatives, regardless of it’s local ecology, and fruit or seeds ripening at the right time of year for optimum distribution.
My response was concerning local species of wattle that flower on the same day everywhere.
[…]The new findings are the culmination of twelve years of research involving scientists from Germany, Argentina and the US, as well as the Cambridge team. The work was done in a model system, a mustard plant called Arabidopsis, but Wigge says the phytochrome genes necessary for temperature sensing are found in crop plants as well.
“Recent advances in plant genetics now mean that scientists are able to rapidly identify the genes controlling these processes in crop plants, and even alter their activity using precise molecular ‘scalpels’,” adds Wigge. […]