Watering:
Watering the plant deeply every three days. Oleander can withstand a lack of water.
Fertilizer:
Fertilize the plant with 10-10-10 granular fertilizers once in 4-6 weeks.
Re-potting:
Re-pot with fresh potting soil and fertilizer when it outgrows from the plant.
Temperature:
The temperature must be around 5 to 10 degree Celsius.