Wide range of species grown in both spring and autumn potting cycles, Ericaceous plants have very specific needs due to their slow growing habit and intolerance of lime.
Sensitive to high pH levels leading to iron deficiency, (aim for pH of 4.5 to 5) and also to high levels of fertilizer.
Using Osmocote Exact Standard gives the best quality. The nutrient release matches the trees demands and ensures balanced growth which ensures the plants establish better, when eventually planted out.
Osmocote Exact 16-18 month Low Start for slow growing, long term species, Osmocote Lo Start gives ultimate crop safety for sensitive species.
For most crops Osmocote Exact 12-14 month release will give the best growth even for sensitive species.
Colin Edwards, Woodlark Nurseries
ICL recommend Osmocote Iron 3-4 month at a rate of 0.5kg per cubic metre