Always buy a high-quality, balanced fertilizer that contains the three major elements (nitrogen, phosphorus and potassium), plus all the minor nutrients (sulfur, calcium, magnesium, iron, manganese, boron, copper, zinc, molybdenum, and chlorine).Also recommend a low-urea or urea-free fertilizer because urea is not a truly available source of nitrogen for epiphytic orchids.
1) Water your orchid thoroughly before feeding.
2) Look for fertilizers that contain nitrogen (N), phosphorous (P) and potassium (K), plus trace elements like iron (Fe).
3) If you’re growing your orchid on bark, use a fertilizer that’s significantly higher in nitrogen (in a ratio of 30(N)-10(P)-10(K)). The bacteria in the decomposing bark will consume a lot of nitrogen.
4) Use fertilizer with a higher nitrogen percentage when new shoots are coming out, and fertilizer with more phosphorous and potassium later in the season. orchids and those not planted in bark grow well with even formula fertilizer ratios, such as 20-20-20. A “bloom-booster” type formulation can be used in the autumn that has a higher phosphorus formulation such as 10-30-20.
5) Feed the orchid. In general, once a month is recommended for most fertilizers.Do not overfeed orchids––this can damage them. Synthetic fertilizers contain mineral salts, such as potassium, calcium and others. Over time, these salts build up in your pot and potting medium and can seriously harm the plant. Additionally, overfed orchids often grow too quickly, making them weak and susceptible to disease. Finally, many kinds of orchids actually bloom worse if they’re overfed. Find the fine line and stick with it.
6)Greencare 13-27-27 Is a good fertilizer for orchid. All primary, secondary and micro nutrients in one pack. Being water soluable directly reaches the plant eliminating any nutrient wastage.Enhances resistance to fungus attack.Non-toxic, safe, and eco friendly.Compatible with most commonly used pesticude and fungicide.
Direction for use – Dissolve one teaspoon full (5 gms.) Greencare in 10 liters of water (0.05% solution) for infant plants and one teaspoon full Greencare in 5 liters of water (0.1% solution) for mature plants.
7)Feed during the growing season. Many orchids—dendrobiums, for example—go into dormancy over the winter months. Others, such as cattleya, slow way down in their growth. There is little purpose in feeding a dormant plant. Start fertilizing again once the plant shows signs of fresh growth in the spring.
8) There are specialized bloom-boosters that offer slightly different nutrient balances or micronutrients designed to enhance orchid flowering.There’s little benefit to these products. First, most home orchid collections carry multiple genera that flower at different times of the year. Second, different genera have different flowering requirements. When you get down to it, a high-quality, well-balanced fertilizer is just as effective at producing blooms as a booster, and it will benefit all your plants, not just the bloomers.