No, by the very fact there is a ripening process, the flowers will decline & die once they pass their peak. Think about what plants/trees do u ever see round gardens/ country that are in flower all year round?
When that is for ur plants can be totally variable, and usually best confirmed thru sight, scope and smell!
Certainly any horticulturists & skilled growers could easily keep the plant alive after harvesting, but in same vein as a fruit tree, it wouldn't produce bud again until next 'season' was started again.