Directions for use
Triacontanol is not water-soluble. It should be dissolved first in polysorbate 20 and diluted well with a specific amount of water to achieve your desired dose to create a spray, which is usually applied to the leaves of the plant. Doses for specific plants can be found on the instructions that come with all Triacontanol products. 25 ppm works very well for a wide variety of plants even up to 50ppm for roses especially.
Also found this:
https://buildasoil.com/blogs/n...
