Begonias boast varying bloom times depending on species and hybrid type. Some varieties, like tuberous and fibrous begonias, have extended bloom periods from summer to fall. Rex begonias primarily value their foliage and bloom less frequently. Environmental factors such as light, temperature, and care practices can influence bloom duration. With proper care, some begonias can re-bloom multiple times throughout the year, providing continuous color and visual appeal in gardens and indoors.