Hi Hokiehorticulture, If they are seedlings, they take from 6 months to several years to flower - depends on genes they have, time of year (environment / your particular climate)and cultural conditions you provide. If they are wood from a mature flowering plant, they will flower within a few weeks to a few months of a rooted cutting being put in pot or ground - again depends on genes, season / weather and cultural conditions. Warm to hot weather (20 - 30c), in good rich soil or good quality potting mix, kept moist(but not wet)and fed well / regularly with a food high in potassium, will get fastest results.

Hope this helps.

Regards, Brian.