Dragon fruit growth is stimulated by increasing daylight hours and rising temperatures.

Growing Season Timeline (Australia - Queensland)

Each state and region will be slightly different.

Each year will be slightly different due to weather patterns

Even The positioning of your property will impact your season if say you are in the shadow of a hill this will affect the daylight ours of your plant 

• Spring (August - October):Plants come out of dormancy as daylight hours increase. New shoots and buds start forming.
• Summer (November - February): Peak growth and fruiting period. Flowers bloom at night, and fruit develops.
• Autumn (March - May):Late-season fruiting may continue, but growth starts to slow as temperatures drop. This can slow the ripening of fruit and sometimes the seeds will begin to sprout before the fruit ripens 
• Winter (June - July):Dormant phase; plants conserve energy and require minimal watering.