Watering:
Water the plant regularly.
Fertilizer:
Fertilize the plant annually with a 2 to 3 inch layer of organic mulch such as wood chips or grass clippings can help a Vitex plant grow well, helping keep moisture in the soil and block the growth of weeds.
Re-potting:
Re-pot with fresh potting soil and some fertilizer when it outgrows from the plant.
Temperature:
The maximum temperature during summer are 27.6 degree Celsius and 28.7 degree Celsius, and minimum temperatures during winter is of 25.9 degree Celsius and 26 degree Celsius.