Check out the gardening tips for orchid growers
SEPTEMBER, October and November are the start of the growing season - the orchids have just come through winter and as the days lengthen and get warmer, the plants are on the move.
You need to start changing your fertiliser, from the higher potash/potassium, to a higher nitrogen type. The changeover is done in September, with the equinox on September 22 (equal hours of day and night).
Rotate the two fertilisers (high potash/potassium to the high nitrogen type), decreasing the first and increasing the second so that the changeover has taken place by the end of September (50% of each by September 15).
Your watering program will become more frequent, starting at three to four days in September to two to three days at the end of November.
Fertilise every second watering at half strength; try to keep the N.P.K within the following ranges. N15/20-P 4/8-K 8/14 with trace elements. Use organic fertilisers too, rotate your fertilisers as each has different and varying ingredients and this helps to cover all the nutrients needed.