Bio Leaf Orchid Bloom 10-3-14

Bio Leaf Orchid Bloom has been scientifically designed to meet all the plant’s nutritional requirements. It can be used all year round on all orchids or as part of a split application where two different solutions are used, one for the vegetative phase and the other for the blooming phase. Most orchid growers use Orchid Bloom all year round. It has sufficient nutrients to support leaf and flower development. 

Bio Leaf Orchid Bloom

In a conversation with the late Grahame Leafberg (2019), Grahame mentioned that he had been using Orchid Bloom for over 25 years. He said a large part of his success was due to the weekly use of Orchid Bloom. Grahame was the first person to be awarded a special Certificate of Meritorious Achievement by the Orchid Council of New Zealand (OCNZ) being the first person to have won all of the awards available at that time under the OCNZ judging system. Eight in total: FCC, AM, HCC, CCE, CCC, AD, PBA and CBM.

Created for Orchids

For over 35 years Orchid Bloom has been used by home orchid growers and commercial growers. It was originally developed by Brian Pryor who is an orchid grower, hybridiser and a chemist. Combining his knowledge of growing orchids with chemistry he formulated Orchid Bloom to supply the nutrients in the correct quantities as required by orchids.


Complete Nutrient Profile

Orchid Bloom is formulated to include 15 essential nutrients and there is no need to supplement with any other nutrients.

Some fertilizers fail to include calcium, sulphur and adequate levels of trace elements. For example, sulphur is needed to initiate flowering, while boron, sets the flower buds and calcium produces strong, long-lasting stems. 

Another important feature of Bio Leaf Orchid Bloom is its ability to stabilize the pH in orchid potting mixes. Buffering the pH is extremely important for good growth. Huge fluctuations in pH will cause the plants to sulk and affect the absorption of certain minerals.

Some fertilizers use urea or too much ammonium nitrogen. Not only does this make the potting mix extremely acidic it burns the roots. So, to help we have taken away all the guesswork. By simply adding the stock solution to water all the nutrients required to support orchid growth and flowering are supplied in the correct proportions. 

  • Nitrogen – 10%
  • Phosphorus – 3%
  • Potassium – 14%
  • Calcium – 8.5%
  • Magnesium 2.27%
  • Sulphur, Iron, Zinc, Boron, Copper, Molybdenum, Manganese, Sodium, Cobalt, Nickel and Chlorine.


Application Rates Orchid Bloom 10-3-14

  • 2ml Bio Leaf Orchid Bloom per 1 litre of water will suffice for most orchids.
  • 1ml Bio Leaf Orchid Bloom for orchids that require lower nutrient levels such as paphiopedilums.
  • Apply at least once a week. During winter months the interval between watering may be extended beyond one week. In this case, feed every time you water your orchids.


Mixing Instructions

  • Orchid Bloom consists of two stock solutions, (Two bottles) – do not mix these solutions together in their concentrated form or they will react and form crystals. To make up the nutrient solution fill your container with water first, then add your fertiliser. 
  • Fill your container with water first then and equal quantities from the A solution & B solution.
  • For those who use a meter to measure the nutrient strength 1ml fertiliser to 1 litre will provide you with EC of approximately 0.6 mS/cm2 (millisiemens per cm2).


Orchid Bloom A & B solutions are derived from calcium nitrate, potassium nitrate, mono potassium phosphate, magnesium sulphate, iron EDTA, manganese sulphate, zinc sulphate, copper sulphate, boric acid, ammonium molybdate, nickel sulphate and cobalt chloride.