I have just been given a large 'singapore orchid' (purple/white/ flower)...how do I care for it?

I am in Australia. How often do I water it? Do I give it "Thrive' or whatever ?

thanks .

I have just been given a large 'singapore orchid' (purple/white/ flower)...how do I care for it?
Make sure you give it lots of room..they tend to grow quite large..if you have good soil ,don't worry about the thrive et al..if you live above Sydney,water once a week..deeply till established..mulch well if still a small tree..BUT give it some room.Bauhinia I-forget-now..