Fertiliser Requirements for Cymbidium Orchids

At Firetail Orchids we blend slow release fertilisers to achieve a balance of major nutrients that conform with research done by Hugh A. Poole and John G. Seeley.  A copy of their research paper may be viewed by clicking the following button:

The paper concludes that, for optimum growth, cymbidium orchids require the following major nutrients:

Nitrogen (N) 100 ppm
Phosphorus (P) level not covered by the research
Potassium (K) 50-100 ppm
Magnesium (Mg) 25 ppm

Most fertilisers sold for orchids do not match these levels, particularly for magnesium.

Firetail Orchids Blend fertiliser is available from the Shoalhaven Orchid Society and the Orchid Society of Canberra.