Outdoor

Hot and cold climate

Due to higher temperatures, the longevity of your controlled release fertiliser will be shorter. Rates should be adjusted downward to accommodate nutrients being released over a shorter period of time, therefore less Osmocote® Exact is required per m³ of substrate. By selecting the correct product you can achieve ideal nutrition and longevity for the life of the crop.

Phosphorus sensitive production

Commercial cut flower crops from the Proteaceae group are generally of South African origin. Many Australian plants from this group have similar soil and nutritional requirements, that is, they generally prefer lower (acid) pHs (5 - 5.5), well drained soils, are intolerant of frosts and sensitive to moderate phosphorus levels in the soil.

Large container production (>25L)

From research and grower experience it is clear that fertiliser placement and rate clearly influences the quality of the root system and desired growth pattern of large container crops. To encourage a ‘buttressed’ root system to prevent ‘lodging’ of the tree on plant out the Osmocote should be placed as outlined here.

Download Guide below for complete information.