Fertilising

It is important for Phalaenopsis to be rooted in well-ventilated soil that allows moisture-retaining drainage. Special orchid potting soil is available at most garden centres and is ideal for this purpose. It is better than using normal potting soil.  

Because the well-ventilated orchid potting soil does not contain much plant food, it is best to add liquid fertiliser to the water for Phalaenopsis. Special orchid fertiliser is available and should be applied twice a month from March through October.